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OpenPlay Los Angeles, CA
Hello, we’re OpenPlay ! We make enterprise web applications for record labels (music industry) Looking for full-stack Ruby engineers (Rails-like or Python/Django + want to learn Ruby) Would like 2 or more years of professional web development experience Positions are full time, fully remote and/or we have an office in Los Angeles Starting salary 100-150k (depending on experience) + benefits We’re hiring full-stack Ruby software engineers to work with us on our suite of enterprise web-based music industry apps. You’ll work with us to architect, build, deploy, and maintain applications used by the world’s largest record companies (and some of the world’s smallest). This is a full-time position that can be in our office (Los Angeles/Santa Monica) or fully remote (US only at this time).
Hello, we’re
OpenPlay
  • We make enterprise web applications for record labels (music industry)
  • Looking for full-stack Ruby engineers (Rails-like or Python/Django + want to learn Ruby)
  • Would like 2 or more years of professional web development experience
  • Positions are full time, fully remote and/or we have an office in Los Angeles
  • Starting salary 100-150k (depending on experience) + benefits
We’re hiring full-stack Ruby software engineers to work with us on our suite of enterprise web-based music industry apps. You’ll work with us to architect, build, deploy, and maintain applications used by the world’s largest record companies (and some of the world’s smallest). This is a full-time position that can be in our office (Los Angeles/Santa Monica) or fully remote (US only at this time). We are looking for engineers with two or more years of full stack web application development experience. Starting salary range is 100-150k depending on experience. Learn more about OpenPlay at: www.openplay.co
Engineering at OpenPlay
Thousands of record labels around the world use our flagship product OpenPlay Music to manage and distribute their music. We work with the major US record distributors and many independents. We are onboarding another 300+ record labels this year and we need to grow our engineering team to handle increasing demand for both client services and new product growth. OpenPlay is a bootstrapped, growing company started in 2013.
In your role at OpenPlay you will be collaborating with a team of 4-6 other engineers and a UX/visual designer to design, build, review, deploy, maintain, and iterate on OpenPlay’s web applications. We follow a minimal agile process focused on rapid deployment and incremental improvement. Engineers participate in a weekly planning meeting, a daily engineering meeting, choose what to work on, and then spend the rest of their time getting their work done, collaborating as needed.
You will share the same responsibilities as the rest of your engineering team, which include:
  • Participating in a weekly planning meeting where we review our goals and prioritize work to be done for the coming week.
  • Participating in daily engineering-only meetings (roughly 30min) where the team collaborates on technical decisions, resolving issues, and reducing complexity.
  • Writing tests: we write mostly full-stack integration tests and use a single testing framework for all parts of the code.
  • Writing application code: mostly Ruby, some HTML, some Javascript. CSS is mostly handled by visual design.
  • Reviewing code: We do round-robin code reviews as a means of knowledge sharing. All pull requests are reviewed by another engineer. You’ll take turns reviewing everyone else’s code and they will take turns reviewing yours.
  • Deploying code: We deploy small changes to production code multiple times per day. Deployments are automated with lots of fail-safes and we rely on third party services for devops as much as possible.
  • Maintaining code: Maintenance is a part of all code changes but we also plan specifically for improving code quality and updating to newer conventions, techniques, and technologies. You will also be reproducing and fixing the occasional bug.
Some things you won’t do:
  • Estimating work to be done. Instead we try to break work down into small enough chunks that they can be done quickly.
  • Reporting progress. Work is done when it’s deployed. Instead we try to reduce the scope of work that is growing complex.
  • Stakeholder meetings. While agile processes are all about open channels of communication we find too much can be overwhelming. We have technical product managers who work with stakeholders instead, allowing everyone else to focus on their work while getting their questions answered.
As a small company with a flat management structure there are lots of opportunities for everyone to make an impact not only on our products but also on how we build them. We apply the same methodology of incremental improvement to our code as we do to our tools, processes, and conventions. You will be able to participate in these discussions as much as you like, and we would like to learn from your experience, but the degree to which you participate is up to you.
Experience we’re looking for
The main thing we’re looking for is experience in full stack web application development. Specifically, we think you’ll need at least two years experience working on all parts of a database-centric web application to be a productive member of your team. In particular you should have experience with:
  • Relational database concepts such as: foreign keys, indexes, normalization and denormalization, SQL queries.
  • Writing Ruby code in an MVC web framework. We don’t use Rails but we follow many of the same conventions. We’ve had success bringing people on from Python/Django so if you have Python experience and would like to learn Ruby it might be a good fit.
  • Some familiarity with Javascript. We push as much behavior as possible to the server but features often do have small client-side components.
  • Writing tests. We practice integration-test-heavy outside-in test-driven development. If you’ve practiced any sort of test-driven development you will pick it up fast.
In addition to being able to get things done we are also looking for someone who can research and implement best practices in order to get things done well. Code smells and poor architectural decisions can slow everyone down and make everyone sad. We collaborate frequently and we don’t always get things right on the first try, but we are looking for people who will do the work to build things well to reduce the maintenance burden for themselves and their team.
Technologies we use
  • OpenPlay Music is a monolithic application backed by a PostgreSQL relational database. Heavy operations are processed asynchronously by scalable background workers that notify clients via WebSockets. At present we have plenty of room to scale.
  • Our server-side code is MVC-structured and built on Sequel (ORM), Sinatra, and HAML. If you’re familiar with Rails (or similar MVC frameworks) you’ll find a lot of similarities and many of the same conventions here.
  • On the client side we use StimulusJS to apply bits of dynamic behavior where it improves the user experience, most of which ultimately requests updates from the server.
  • There are currently around 2500 full-stack browser-based integration tests covering every feature from user input to expected output. CI runs on every git push and completes in about 15 minutes.
  • We do things typical of web applications like:
    • Store data in, and query from, a relational database (PostgreSQL)
    • Index data and query it with filtering and full text searching (Elasticsearch)
    • Handle slow tasks with background processing
    • Push asynchronous updates to clients with WebSockets
    • Export XML files, PDFs, CSVs, Excel spreadsheets, and other formats that just won’t seem to go away
    • Import data from Excel spreadsheets, (music-industry standard) DDEX XML, JSON, and various other sources
    • Communicate with lots of external systems across all manner of bespoke APIs
    • Provide JSON APIs for our customers to build on top of
    • Use git for version control, build features in branches, and take turns reviewing pull requests
    • Run everything on cloud infrastructure
    • Rely on service providers for devops as much as possible (Heroku, etc)
Some benefits of working at OpenPlay
  • Starting salary 100-155k depending on experience
  • Medical, dental, and vision insurance
  • Whatever tools, services, books, etc you need to do your job
  • Low stress environment: The industry we’re in is comparatively low scale and high value. While we work with lots of data we avoid some of the technical issues and constant urgency you might find with consumer applications.
  • Good work/life balance: We expect that everyone works full time (40 hours/week). We do sometimes have deadlines and we haven’t always limited scope appropriately. The last time we worked late nights was in 2019 for about a week. The time before that was in 2016 for about 3 weeks. Our most recent deadline we met two weeks early.
  • Flexible work and vacation schedule. You are free to work the hours that work best for you (outside of our scheduled meetings) and we don’t have a set limit on vacation days.
  • Free to work remote. We’ve been doing remote work as long as we’ve been around and our process is built around it. Some of our team is permanently remote, others work out of the office part time.
  • Office near the beach in Santa Monica you can use any time.
  • Free lunch at nearby restaurants when you’re in the office. Some of which are delicious.
How to apply
Send us your resume! Include a cover letter to add additional details and context if you feel so inclined. We’re mostly looking for two things:
  • Prior work experience that looks like it might be a good match for what you’ll be doing at OpenPlay.
  • Some understanding of how to program well. Maybe a computer science degree or other academic background. Code contributions you can point to. Blog articles you wrote. A particularly enlightening reddit comment.
We’d love to know a bit about you as well but it can be a challenging prospect for an initial job application. Feel free to include anything else you’d like, but don’t worry too much about it, we’re mostly looking for the above qualifications at this point.
We look forward to hearing from you, good luck on your job search wherever it leads, and thank  you for considering joining OpenPlay!
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Avara US
About us: Avara is a group of software development companies that build open-source, blockchain-based software for the Web3 world. With a mission to reinvent our modern paradigms in the realm of finance, social media and beyond, we are focused on building revolutionary products and protocols that will reinvent the ways we communicate, our financial systems, and our cultural norms. United with one clear goal, Avara is determined to build a future for users that provide them with better control over their finances, data and social experiences. Our culture: Having cultivated a thriving, collaborative culture, our team is kind, welcoming and passionate about what we are building. We celebrate differences and seek to develop and retain the most talented people from a diverse candidate pool from all over the world. About the role: The Backend Developer will enhance and maintain high-performance systems using Node.js an

About us:

Avara is a group of software development companies that build open-source, blockchain-based software for the Web3 world. With a mission to reinvent our modern paradigms in the realm of finance, social media and beyond, we are focused on building revolutionary products and protocols that will reinvent the ways we communicate, our financial systems, and our cultural norms. United with one clear goal, Avara is determined to build a future for users that provide them with better control over their finances, data and social experiences.

Our culture:

Having cultivated a thriving, collaborative culture, our team is kind, welcoming and passionate about what we are building. We celebrate differences and seek to develop and retain the most talented people from a diverse candidate pool from all over the world.

About the role:

The Backend Developer will enhance and maintain high-performance systems using Node.js and TypeScript, optimise database performance, and implement best coding practices. This role involves collaborating with various teams to develop efficient APIs and streamline deployments, focusing on scalability and rapid response to support the Family Wallet.

How you can make an impact:

  • Develop, maintain, and enhance high-performance backend systems utilizing Node.js and TypeScript.
  • Optimise database performance, scalability, and integrity, managing both PostgreSQL and MongoDB environments.
  • Implement best practices in coding, including automated tests, comprehensive documentation, and conducting code reviews as necessary.
  • Collaborate with the DevOps team to streamline automated deployments using CI/CD, enhancing production visibility and ensuring environment stability.
  • Work closely with the iOS team to architect and develop efficient REST APIs that support the rapid response requirements of the Family wallet.
  • Process and convert blockchain data from multiple chains into a format suitable for efficient querying.
  • Design and implement sophisticated caching mechanisms to provide instantaneous API responses.
  • Lead backend architecture discussions and planning for integrating new features seamlessly.

Let’s connect if:

  • Minimum of 5 years’ experience in backend development, preferably with large-scale systems.
  • Strong proficiency in Node.js, TypeScript, Redis, Git, and RESTful API design.
  • Solid experience with both SQL and NoSQL database technologies.
  • Familiarity with AWS and other cloud services.
  • At least 1 year of experience in the web3 sector, developing backend solutions.
  • In-depth knowledge of the Ethereum Virtual Machine (EVM) and data extraction techniques from EVM-based blockchains.
  • Excellent skills in communication, collaboration, and problem-solving.
  • Capable of working both independently and as part of a diverse team.
  • Passion for building products with a high degree of craft, polish and attention to detail.

Haven’t quite met all the criteria? Let’s not miss out on the chance to speak. Whilst you might not meet every single requirement, you might bring other, more exciting skills to the companies!

Equal opportunity statement:

Avara celebrates diversity and view each and every team member as a separate individual with their own unique identity. No matter your race, religion, gender, ethnicity, age, (dis)ability, sexual orientation or even the wallet you use, we welcome you at Avara.

As an equal opportunities employer, we take accountability and believe in everyone’s potential to build, create and inspire changes. With a mission to build a diverse workforce, we are proud to foster a working environment in which everyone can feel safe and valued for who they are.

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Proxify AB Sweden
The Role: We are looking for a Senior Django developer for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products and growth features. What we are looking for: Problem-solving and critical thinking abilities High level of knowledge of Python and the Django framework Familiarity with event-driven programming as well as the MVC Good understanding of SQL databases Good understanding of REST APIs Nice-to-have: Time zone: CET (+/- 3 hours). Responsibilities: Work with stakeholders and fellow developers Design and implement Pyth
The Role:
We are looking for a Senior Django developer for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products and growth features. 
What we are looking for:
  • Problem-solving and critical thinking abilities
  • High level of knowledge of Python and the Django framework
  • Familiarity with event-driven programming as well as the MVC
  • Good understanding of SQL databases
  • Good understanding of REST APIs
Nice-to-have:
 
  • Time zone: CET (+/- 3 hours).
Responsibilities:
  • Work with stakeholders and fellow developers
  • Design and implement Python code using the Django framework
  • Identify and fix bottlenecks that may arise from inefficient code
  • Identify and fix software bugs
  • Create a wide variety of unit tests to verify the functionality of a software
  • Manage the security of the platform
  • Write detailed documentation around the code
  • Knowledge of front-end languages
What Proxify offers
  • Career-accelerating positions at cutting-edge companies
    Discover exclusive long-term remote engagements at the world's most interesting product companies.
  • Hand-picked opportunities, just for you
    Skip the typical recruitment roadblocks and biases with personally matched engagements.
  • Fast-track your independent developer career
    Start small and gain more freedom to take on new engagements as you build your independent developer career.
  • A recruitment process that values your timeOnly one hiring process with the possibility of several positions, without any additional tests.
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Octav Canada
About Octav Octav is a pioneering on-chain data labelling and categorization platform, leveraging advanced machine learning to transform complex on-chain data into user-friendly outputs. Our proprietary algorithm and machine learning models are designed to empower protocols, DAOs, and hedge funds with innovative solutions for treasury reconciliation and compliance efficiency. Octav also combines cutting-edge technology with a network-driven approach to optimise treasury management for Web3 CFOs, all within a single, intuitive platform. About the Role: Must be based in Canada. As our Data Engineer, you will play a central role in enabling data-driven decision making across the business. You will work horizontally with the backend team to build and refine Octav’s DeFi labelling algorithm, and develop the data infrastructure needed to support business objectives. Key Responsibilities:

About Octav

Octav is a pioneering on-chain data labelling and categorization platform, leveraging advanced machine learning to transform complex on-chain data into user-friendly outputs. Our proprietary algorithm and machine learning models are designed to empower protocols, DAOs, and hedge funds with innovative solutions for treasury reconciliation and compliance efficiency. Octav also combines cutting-edge technology with a network-driven approach to optimise treasury management for Web3 CFOs, all within a single, intuitive platform.

About the Role:

Must be based in Canada.

As our Data Engineer, you will play a central role in enabling data-driven decision making across the business. You will work horizontally with the backend team to build and refine Octav’s DeFi labelling algorithm, and develop the data infrastructure needed to support business objectives.

Key Responsibilities:

  • Develop and Optimize Data Systems: Design and implement robust data pipelines to support our marketing and product initiatives. This includes extracting, transforming, and loading (ETL) data from various sources.
  • Analytics and Insights: Develop our algorithm to label all DeFi transactions accurately.
  • Automation and Performance Tracking: Automate data workflows and integrate machine learning models to enhance data accuracy and efficiency. Select appropriate KPIs and develop systems to track these metrics effectively.
  • Infrastructure Management: Manage and optimize our AWS-hosted services to ensure high availability and performance. Collaborate with the backend team and CTO to enhance data architecture and server functionality.
  • Budget and Resource Allocation: Oversee the budget for data operations and make decisions on resource allocation to maximize efficiency and effectiveness of data solutions.
  • Team Collaboration and Leadership:
    • Cross-functional Leadership: Work closely with the marketing team, providing data-driven insights and recommendations to guide marketing strategies.
    • Innovation Advocacy: Stay abreast of the latest developments in Web2 technologies, DeFi ecosystems, and emerging trends to drive innovation within our data practices.

Requirements:

  • Location: Must be based in Canada, ideally in the province of Quebec. Applications outside of Canada will not be considered.
  • Experience: Minimum of 4 years as a Data Engineer with a strong track record in data system design, implementation, and optimization.
  • Technical Expert with demonstrated proficiency in TypeScript or Python, and a solid foundation in related testing frameworks like Jest or PyTest. The ideal candidate should possess excellent SQL skills, extensive experience with key AWS services such as EC2, S3, RDS, and AWS Lambda, and have a proven track record in developing and maintaining machine learning models, preferably with TensorFlow or PyTorch. Experience with data ingestion pipelines and familiarity with tools such as Apache Kafka or Apache Airflow is highly desirable.
  • Understanding of DeFi: While not coding in Web3, a deep understanding of the DeFi ecosystem is essential to navigate and manipulate related data effectively.
  • Data Driven: Proven ability to set up and manage KPI metrics tracking platforms.
  • Leadership Skills: Excellent communication, collaboration, and problem-solving skills, capable of leading projects and mentoring team members.
  • Innovation and Adaptability: Passionate about leveraging technology to solve problems in a fast-paced, dynamic startup environment.

Why Join Octav?

Octav offers a unique opportunity to shape the future of DeFi. As part of our team, you will work alongside innovative minds, enjoy opportunities for professional growth, and contribute significantly to an exciting, fast-paced industry. We are committed to diversity and inclusivity, providing an empowering environment for all our team members.

Many top DeFi protocols, including Gelato, Alchemix, Request, Paladin, Gearbox, Timeless, Bunni, Swell, Hopr, Beefy, Morpho labs, xdefi and more rely on Octav to reconcile their treasury and generate financial reports for their community.

Octav is backed by VC firms, including Nascent, Polymorphic capital, Possible ventures, Speedinvest, Parallel Studios, Portofino, ACET capital, Spaceship DAO, and angel investors Paul Desmarais, Mark Zeller, DCF God, and more.

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Banzai USA
US-based annual salary range: $80,000 - $90,000 Hi, we're Banzai! We’re out to solve the #1 business challenge for all B2B Marketers – proving Marketing ROI. Through The Banzai Platform, we provide marketers the campaign insights they need to make better marketing decisions – and we do it all in one platform, so it’s super easy. We know marketing is hard enough – why make it harder? Our mission is to help our customers accomplish their mission – through better marketing, sales, and customer success outcomes. Our vision is to increase the value of every customer interaction for every company in the world. Ready to join us? Summary: Banzai is loo
US-based annual salary range: $80,000 - $90,000
Hi, we're Banzai!
We’re out to solve the #1 business challenge for all B2B Marketers – proving Marketing ROI.
Through The Banzai Platform, we provide marketers the campaign insights they need to make better marketing decisions – and we do it all in one platform, so it’s super easy. We know marketing is hard enough – why make it harder?
Our mission is to help our customers accomplish their mission – through better marketing, sales, and customer success outcomes. Our vision is to increase the value of every customer interaction for every company in the world.
Ready to join us?
Summary:
Banzai is looking for a Senior PHP Backend Engineer to join our team.
Expectations of Role:
  • Develop a backend application using PHP, MySQL, Redis, AWS
  • Discuss with the team to understand the functionality and come up with innovative ideas for the backend development
  • Diagnose and solve problems quickly and effectively as they arise
  • Discuss with the team tasks to be done
  • Performs code reviews for team members
  • Follow best practices and guidance to build an easy-to-maintain and extend the high-performing application
What an average day/week looks like:
  • Work together with the Product and Engineering teams on the current sprint/cycle
  • Work together with Frontend Engineer on creating/updating API endpoints
  • Create unit-tests
  • Refactor the code. Improve the code quality
  • Write a small daily report (just a few lines) about the work progress
Desired Qualifications, Skills, & Experience
  • At least 7 years of experience in the Backend PHP Development area
  • English: free speaking level (fluent/advanced)
  • Highly proficient with PHP language (7.x and higher)
  • Strong knowledge of MySQL. Highly proficient with native SQL queries
  • Experience with Amazon Web Services
  • Experience with Redis
  • Experience in integrations with 3rd-party services
  • Can create Unit-tests for components that you created
  • Experience with queues, publishers, subscribers, workers units
  • Strong experience in the Git subversion system
  • Continuously learning new techniques and are aware of the trends in the backend dev community
  • Located in the timezones between GMT -1 and GMT +4
  • Understanding SOLID, DDD, Clean Architecture
How you work as a team member
  • You are a strong team player in a flat-structured, highly collaborative environment
  • You have excellent communication skills and participate actively in team meetings and discussions
  • You are flexible and can handle constant changes in business requirements
  • Willing to work close to UTC/GMT +3 hours
Nice to Have
  • Experience running webinars
  • Experience with Phalcon PHP Framework
  • Experience in testing frameworks
  • Experience in CI/CD
Benefits
  • 401(k) plan (US based)
  • Health, Dental, Vision, Life, and Long-Term Disability insurance (US based)
  • Unlimited PTO policy (salaried) or hourly PTO policy
  • Remote first company
  • 12 weeks fully paid parental leave
  • Working with a truly mission-driven team motivated by excellence
  • Real room for growth in professional and personal development
  • 2 paid mental health days every quarter, plus one full week of paid mental health rest every year
  • Clear objectives, direction and empowerment from executive leadership
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Chorus One Remote
Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies. We are a diverse team of 60+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you. Role As a Senior Software Engineer , you will be an integral part of our Ethereum software engineering team focusing on automation of validator infrastructure and building great staking products. OPUS is our product suite which offers a one-stop-shop product for staking Ethereum. For users, it offers a portal

Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.

We are a diverse team of 60+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you.

Role

As a Senior Software Engineer, you will be an integral part of our Ethereum software engineering team focusing on automation of validator infrastructure and building great staking products. OPUS is our product suite which offers a one-stop-shop product for staking Ethereum. For users, it offers a portal where users can stake and see their rewards, and check the status of their validators. On the backend, we have a platform that automatically launches, manages, and monitors these validators.

OPUS consists of a React/Next.js frontend and a backend written in Rust. It is backed by PostgreSQL and Hashicorp Vault, and runs mostly on Google Cloud, with some bandwidth-intensive parts running on bare metal.

Your main role will be to design, develop, and deploy software systems to advance our product as well as other staking services.

Responsibilities

  1. Design and develop new features. Discuss with internal stakeholders to clarify how our next feature should look, discuss with fellow engineers how it should be implemented, and then drive implementation to completion.
  2. Support and collaborate. Review and discuss engineering designs, review code, help fellow engineers, and mentor them on a technical level.
  3. Innovation and continuous improvement. Seek to simplify, optimize, and secure our staking services and systems.

The “Senior” title on the job description is purely for describing the experience level of the hire we’re looking for. Our job titles don’t include hierarchical seniority systems and we use consensus for driving decisions.

Job requirements

What we are looking for

  • +5 years experience as a Software Engineer
  • Experience with developing smart contracts and understanding of the Ethereum ecosystem.
  • Experience with testing, maintaining, launching software running in production
  • Deep understanding of at least one compiled statically typed programming language (e.g. Rust, Go, Kotlin, C++, Haskell)
  • Ability to design new software features based on given requirements with focus on simple and sound architectural design choices
  • Experience writing reliable applications using SQL databases, preferably PostgreSQL
  • Strong communication skills and ownership to drive new features independently.

Nice to have

  • Experience building, deploying, operating, and monitoring software, and related tools such as Prometheus, Terraform, Ansible, Kubernetes and Vault.
  • Basic familiarity with how blockchains work, and consensus algorithms such as pBFT.
  • Candidates in European time zones (GMT+0 to GMT+3).

Our Offer

  • Autonomy and ownership in a friendly and supportive work environment and the opportunity for rapid growth.
  • Competitive fixed compensation (USD 100k - 140k commensurate with experience and equity options available)
  • All-expense paid biannual team retreats at various destinations. Past retreats took place in Egypt, Serbia, Kenya, USA, South Korea, Thailand, Georgia, Dubai.
  • Remote, but not alone. We are a strong global collaborative environment.
  • Remote working budget (Laptop, co-working space, etc)
  • Personal development budget
  • Gather experience and build your network in the vibrant crypto ecosystem.
  • Learn about state-of-the-art protocols that lay the foundation for an open, transparent, and programmable financial system.

Job Type: Full-time (Remote)

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APY.vision Europe
Are you eager to dive into the dynamic realm of web3 and play a pivotal role in shaping the trajectory of the products you work on? Here’s your chance! The team behind APY.vision, a leading blockchain analytics tool, is seeking a Senior Software Engineer with strong leadership capabilities to drive our products to new heights and redefine the landscape of web3 analytics. With funding from prominent venture capitalists, we are poised to expand our team and bring our product vision to fruition. About Us For the past two years, we’ve been dedicated to serving the web3 community with innovative analytics solutions, particularly focusing on DeFi (Decentralised Finance). Our flagship product, APY Vision, has garnered widespread acclaim, earning grants from reputable entities within the web3 ecosystem. Driven by our collective passion for tackling complex challenges, we foster a culture of creativity, diversity, and emp

Are you eager to dive into the dynamic realm of web3 and play a pivotal role in shaping the trajectory of the products you work on? Here’s your chance!

The team behind APY.vision, a leading blockchain analytics tool, is seeking a Senior Software Engineer with strong leadership capabilities to drive our products to new heights and redefine the landscape of web3 analytics.

With funding from prominent venture capitalists, we are poised to expand our team and bring our product vision to fruition.

About Us

For the past two years, we’ve been dedicated to serving the web3 community with innovative analytics solutions, particularly focusing on DeFi (Decentralised Finance). Our flagship product, APY Vision, has garnered widespread acclaim, earning grants from reputable entities within the web3 ecosystem.

Driven by our collective passion for tackling complex challenges, we foster a culture of creativity, diversity, and empowerment. As pioneers in blockchain analytics, we continuously push the boundaries of possibility and reinvent the web3 data analytics industry.

About the Role

We are seeking a Senior Software Engineer to join our core platform team. This role requires not only technical expertise but also leadership skills to guide and mentor junior team members.

In this role, you’ll be instrumental in building a cutting-edge financial data platform, empowering developers to create data integrations centred around web3 user financial statements.

What You’ll Do

  • Actively participate in software development, leveraging your expertise to drive the implementation of key features.
  • Collaborate closely with the Engineering Manager and external stakeholders to drive technical discovery and shape the direction of our platform.
  • Work closely with business leads to define project milestones and deliverables.
  • Contribute to the optimization and improvement of our system’s core.
  • Maintain agility while ensuring scalability, enabling rapid product launches and adaptability to evolving requirements.
  • Design, build, and deliver innovative applications within tight deadlines.
  • Ensure adherence to software development standards and methodologies.
  • Collaborate with cross-functional teams to resolve production issues promptly.
  • Lead and mentor junior engineers, providing guidance and support in their technical growth.
  • Support providing historical financial data for various blockchains (ie: EVM, Solana, Cosmos, MoveVM).

What You’ll Bring

  • 5+ years of experience developing applications using NodeJS, Ruby, or similar languages.
  • Strong API development experience (3+ years).
  • Prior experience mentoring junior engineers and collaborating with stakeholders.
  • Proficiency in TypeScript, as well as Kafka, Redis, and SQL.
  • Familiarity with Docker and Kubernetes.
  • Understanding of large-scale distributed systems and microservices architecture.
  • Experience with data-heavy applications and familiarity with tools like Apache Kafka, Apache Flink, Apache Hadoop, or similar.
  • Knowledge of data modelling and database design principles.
  • Familiarity with blockchain technology, Ethereum, and smart contract development.
  • Understanding of web3 concepts such as decentralised applications (dApps), blockchain networks, and crypto wallets.

Who You’ll Work With

  • Collaborate with the Engineering Manager and company management to shape product direction.
  • Work closely with the Product Lead and Tech Lead to define and execute the product roadmap.
  • Mentor and guide junior engineers, contributing to their technical growth and development.

Join us in revolutionising web3 analytics and be at the forefront of shaping its future!

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Binance Canada
Binance is the leading global blockchain ecosystem and cryptocurrency infrastructure provider whose suite of financial products includes the world’s largest digital-asset exchange. Our mission is to accelerate cryptocurrency adoption and increase the freedom of money. If you’re looking for a fast-paced, mission-driven organization where opportunities to learn and excel are endless, then Binance is the place for you. About Binance Accelerator Program Binance Accelerator Program is a concise fixed-term program designed for Early Career Talent to have an immersive experience in the rapidly expanding Web3 space. You will be given the opportunity to experience life at Binance and understand what goes on behind the scenes of the worlds’ leading blockchain ecosystem. Alongside your job, there will also be a focus on networking and de
Binance is the leading global blockchain ecosystem and cryptocurrency infrastructure provider whose suite of financial products includes the world’s largest digital-asset exchange.
Our mission is to accelerate cryptocurrency adoption and increase the freedom of money.
If you’re looking for a fast-paced, mission-driven organization where opportunities to learn and excel are endless, then Binance is the place for you.
About Binance Accelerator Program
 
Binance Accelerator Program is a concise fixed-term program designed for Early Career Talent to have an immersive experience in the rapidly expanding Web3 space. You will be given the opportunity to experience life at Binance and understand what goes on behind the scenes of the worlds’ leading blockchain ecosystem. Alongside your job, there will also be a focus on networking and development, which will expand your professional network and build transferable skills to propel you forward in your career. Learn about BAP Program HERE
 
Who may apply
 
Current university students and recent graduates

Responsibilities:

    • Participate in the development and maintenance of the company's basic products.
    • Responsible for the compilation and implementation of the interface documentation of the business module.
    • Demonstrate strong troubleshooting skills to solve problems.

Requirements:

    • Computer-related major, bachelor degree or above.
    • Have a solid Java foundation and understand basic frameworks, such as multithreading and networking.
    • Familiar with Spring micro-service framework and understanding of its operation mechanism.
    • Familiar with MySQL database, at least one no sql database.
    • Familiar with common middleware such as Redis, RabbitMQ and Kafka.
    • Knowledge of big data and machine learning is preferred.
    • Good logical thinking ability, strong sense of teamwork, and strong learning ability.
    • Good communication skills, fluency in English.
Working at Binance
• Be a part of the world’s leading blockchain ecosystem that continues to grow and offers excellent career development opportunities
• Work alongside diverse, world-class talent in an environment where learning and growth opportunities are endless
• Tackle fast-paced, challenging and unique projects
• Work in a truly global organization, with international teams and a flat organizational structure
• Competitive salary and benefits
• Flexible working hours, remote-first, and casual work attire
Learn more about how Binancians embody the organization’s core values, creating a unified culture that enables collaboration, excellence, and growth.
Apply today to be a part of the Web3 revolution!
Binance is committed to being an equal opportunity employer. We believe that having a diverse workforce is fundamental to our success.
By submitting a job application, you confirm that you have read and agree to our Candidate Privacy Notice.

Apply Now:

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Clearmatics London
About Clearmatics Clearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today. We have a bold vision for this new market infrastructure - enabling market participants to solve currently unaddressed problems of the real economy, including “missing markets” problems. We aim to achieve our vision through technologies that allow peer-to-peer trading and settlement within new markets, and with digital assets whose values track real-world risk factors that currently have no suitable expression in legacy markets. No matter the nature of a risk factor, whether macro-economic or relating to real-world metrics such as climate data, our mission is to make important risk factors tradable; by anyone, anywhere, without reliance on financial intermediaries. We are building this new infrastructure in

About Clearmatics

Clearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today.

We have a bold vision for this new market infrastructure - enabling market participants to solve currently unaddressed problems of the real economy, including “missing markets” problems. We aim to achieve our vision through technologies that allow peer-to-peer trading and settlement within new markets, and with digital assets whose values track real-world risk factors that currently have no suitable expression in legacy markets.

No matter the nature of a risk factor, whether macro-economic or relating to real-world metrics such as climate data, our mission is to make important risk factors tradable; by anyone, anywhere, without reliance on financial intermediaries. We are building this new infrastructure in collaboration with incredible trading and blockchain communities.

Clearmatics was founded in 2015, and we have ever since been committed advocates of Open Source development, and active participants in the blockchain and cryptography research communities. We’ve also been an active participant and supporter of decentralized infrastructure initiatives.

We’re growing our team and are looking for a Senior Python Software Engineer to join us and become part of our journey.

Our stack is Ethereum-like, so familiarity with – and passion for – the space is key.

Some of the areas we tackle include blockchain infrastructure optimized for financial use-cases, protocols for specific applications (such as smart contract-based derivatives, synthetic assets, cryptocurrency stabilization, …), scalability and privacy through cryptography (zkSNARKs, multiparty computation, private transactions/assets).

Currently the Clearmatics team is heavily involved as the Launch Partner for the Autonity Project. Autonity is an EVM based public blockchain for decentralised derivatives clearing. You can learn more about the Autonity project and its ongoing testnet games through the links below.

Responsibilities

You will be responsible for building and maintaining the command-line tools, API servers, and Python SDKs that will be the primary interface for Autonity’s end-users. The apps, libraries, frameworks, and services that you develop will enable the creation of decentralised risk markets and a new market structure for DeFi on the Autonity blockchain.

Requirements

  • 5+ years professional experience in software development
  • 2+ years professional experience in Python software development
  • Bachelor’s degree in Computer Science or a related technical field
  • Strong Python skills with experience in network and concurrent programming
  • An understanding of Ethereum protocols and proof of stake consensus
  • Experience developing REST APIs, backend services, and automated pipelines
  • Proficiency with SQL databases, GraphQL sources, and time series data
  • Good knowledge of Unix shell scripting and command-line tools
  • Familiarity with CEX/DEX trade lifecycle and common DeFi protocols
  • Excellent attention to detail and appreciation for software correctness

Bonus Points

  • Contributed code to open-source projects in the Web3 space
  • Experience developing DeFi trading tools or frameworks
  • Proficiency with Python scientific computing stack (NumPy, Pandas, Jupyter)
  • Smart contract programming experience in Solidity
  • Programming experience in a systems language like Go, Rust, or C++
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WE WOULD LOVE TO BE YOUR NEW TEAM! Working at Data Virtuality means thriving as part of an international team. We offer remote work from your home, wherever you are. Further, you can expect an unlimited long-term freelance contract with full-time work, benefits, and a real team spirit. At Data Virtuality, you will experience respectful interactions and harmonious teamwork without a dog-eat-dog mentality! THE POSITION Full-time. Permanent contract. Remote. m/f/d We are looking for a Backend Test Engineer to enhance the quality and performance of our software products. This role focuses on creating, executing, and maintaining comprehensive backend tests. The ideal candidate will be adept in testing various backend functionalities, including data virtualization, ETL/ELT processes, databases, and cl
WE WOULD LOVE TO BE YOUR NEW TEAM!
Working at Data Virtuality means thriving as part of an international team. We offer remote work from your home, wherever you are. Further, you can expect an unlimited long-term freelance contract with full-time work, benefits, and a real team spirit.
At Data Virtuality, you will experience respectful interactions and harmonious teamwork without a dog-eat-dog mentality!
THE POSITION
Full-time. Permanent contract. Remote. m/f/d
We are looking for a Backend Test Engineer to enhance the quality and performance of our software products. This role focuses on creating, executing, and maintaining comprehensive backend tests. The ideal candidate will be adept in testing various backend functionalities, including data virtualization, ETL/ELT processes, databases, and clustering technologies.
Key responsibilities include:
  • Designing, developing, and executing thorough backend tests to ensure our product's integrity and performance.
  • Hands-on testing of various API interfaces such as REST, JDBC, ODBC, and OData, including conducting performance assessments.
  • Collaborating closely with development and product teams to ensure high-quality releases and achieve customer satisfaction.
  • Enhancing existing integration and API tests, and developing new ones using Java.
  • Continuously refining QA processes, methodologies, and tools to boost efficiency and effectiveness.
This position is ideal for someone with a strong background in backend system testing who thrives in a collaborative environment and is keen to drive improvements in quality assurance processes. The candidate will play a crucial role in ensuring that our software meets the highest standards of quality and reliability.
YOUR TECH STACK:
  • 5+ years of experience in a QA engineering role, with a focus on backend testing.
  • Deep knowledge of SQL and experience with relational databases, including database testing.
  • Solid experience in REST API backend testing.
  • Proficient in Java, with practical experience in developing backend test automation.
  • Proficiency in Git, Docker, and CI/CD pipelines (Jenkins or GitLab).
  • Familiarity with performance testing tools and methodologies, with the ability to conduct basic performance tests.
NICE-TO-HAVE:
  • Experience with ETL/ELT product testing.
  • Understanding of data warehousing and RDBMS internals.
  • Knowledge of Python scripting.
  • Experience with distributed systems testing.
  • Experience with BI tools (e.g., Power BI, Tableau) and data integration systems (e.g., Pentaho, Informatica).
  • Familiarity with cloud environments (AWS, Azure, GCP).
YOUR PERSONAL STACK
  • Strong problem-solving, debugging, and investigative skills, with the ability to analyze log files, error messages, etc., to identify the root cause of problems.
  • Strong attention to detail and ability to prioritize tasks.
  • Strong communication and collaboration skills, capable of working effectively with cross-functional teams in a remote set-up.
  • Good command of English (upper intermediate or higher). Fluency in Ukrainian or Russian would be a plus.
What our amazing team worldwide loves about working with Data Virtuality
  • A stable and reliable job with the freedom and flexibility of a freelancer
  • Flexible working hours and workplace
  • Paid vacation days and paid sick leaves
  • Fast and dependable monthly payment – in EUR, USD, or Crypto, as you prefer
  • Contributing to the success of a growing company
  • Working with cutting-edge technologies
  • Knowledgeable and approachable C-Level
  • Continuity and growth potential
  • Friendly and international colleagues
  • Full integration into our teams and invitations for our team events worldwide
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GoTu (formerly TempMee) Miami, FL, United States
Senior Backend Engineer Join our dynamic Miami-based tech startup, generously supported by venture capital, as we search for an experienced Senior Backend Engineer. At GoTu, we're revolutionizing the dental industry with our innovative, deep work platform. Imagine a seamless connection between licensed dental professionals and dental offices, bridging the gap for temporary and full-time staffing needs through our cutting-edge on-demand web and mobile platform. The Senior Backend Engineer will report to the engineer manager and be responsible for designing, developing, troubleshooting, and debugging software applications for our core product. This includes developing software components including Frameworks, APIs, Websites, Utilities, Databases, and Internet-related tools. Principal duties & responsibilities:
Senior Backend Engineer
Join our dynamic Miami-based tech startup, generously supported by venture capital, as we search for an experienced Senior Backend Engineer. At GoTu, we're revolutionizing the dental industry with our innovative, deep work platform. Imagine a seamless connection between licensed dental professionals and dental offices, bridging the gap for temporary and full-time staffing needs through our cutting-edge on-demand web and mobile platform.
The Senior Backend Engineer will report to the engineer manager and be responsible for designing, developing, troubleshooting, and debugging software applications for our core product. This includes developing software components including Frameworks, APIs, Websites, Utilities, Databases, and Internet-related tools.
Principal duties & responsibilities:
  • Develops software solutions by studying information needs, conferring with users, studying systems flow, data usage, and work processes, investigating problem areas, and following the software development lifecycle
  • Demonstrates advanced knowledge in deploying, managing, and scaling applications within Kubernetes environments. Proficient in utilizing k8s to orchestrate containers, manage service discovery, and ensure seamless CI/CD pipelines, contributing to the resilience and efficiency of microservices architectures.
  • Demonstrates expertise in GitOps methodologies using tools such as ArgoCD and FluxCD for continuous deployment, coupled with a strong command of Helm Charts and Kustomize for efficient Kubernetes configuration management. 
  • Skilled in integrating comprehensive monitoring and metrics solutions within Kubernetes and microservice architectures. Experienced in leveraging tools such as DataDog, or similar to ensure high availability, performance tuning, and real-time visibility into system health and resource utilization.
  • Deep understanding of DevOps methodologies tailored to microservice architectures, including automated deployments, infrastructure as code (IaC), and continuous integration and delivery (CI/CD) strategies. Capable of leveraging Kubernetes and cloud-native technologies to enhance the DevOps lifecycle.
  • Well-versed in designing and implementing backend systems based on microservices architecture. Demonstrates a strong grasp of microservices-related patterns and practices, such as service discovery, circuit breakers, and API gateways, facilitating the development of independently scalable and deployable services.
  • Conducts systems analysis and makes recommendations to improve the system to achieve an outcome
  • Identifies opportunities for improving system reliability, security, and stability by working with product owners to prepare backlog items for the team
  • Promotes internal best practices and coding conventions to write and execute tests for your own code, including creating comprehensive unit tests
  • Contributes to technical documentation, process improvements and SOPs
  • Implements best practices based on company wide policies and standards
  • Requests constructive feedback for designs early in the process
  • Performs peer code reviews to ensure the quality of the codebase.
  • Updates job knowledge by studying state-of-the-art development tools, programming techniques and computing equipment; participating in educational opportunities; reading professional publications; maintaining personal networks; participation in professional organizations and networking opportunities
Key Competencies:
  • 5-7+ years of industry experience in programming web applications, mobile, and/or large-scale enterprise products, ideally with some experience leading a team of junior developers both in office and in a distributed environment
  • Expertise in Kubernetes (k8s) Deployment and Management
  • Solid Understanding of Microservices Design Patterns
  • Familiar with Go programming language
  • Extended experience with SQL and relational databases
  • Familiar with SDLC and programming design patterns
  • Familiar with Agile methodology
  • Familiar with DevOps principles
  • Skillful at reviewing new feature impact on an application and recognizing potential risks
  • Skilled at analyzing performance in service
  • Detailed-oriented, professional, and possesses a positive work attitude
  • Communicate professionally both verbally and in writing, across technical and non-technical audiences to effectively collaborate and with all verticals of the organization
Additional considerations: 
  • Working understanding of the Staffing / Recruiting, PE and/or VC landscape
  • Bias for action, ability to prioritize competing objectives, attention to detail and unparalleled critical thinking and organizational skills 
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SportyBet London
Sporty's sites are some of the most popular on the internet, consistently staying in Alexa's list of top websites for the countries they operate in In this role, you’ll be responsible for developing microservices in a distributed deployment environment with an emphasis on containerisation with Docker and K8S. You won’t just be writing simple CRUD applications, but instead will be working on the core logic of complex systems that are accessed millions of times a day. We wrote our system from scratch about 3 years ago, so you’ll be working with the latest technology and won’t have to worry about decades old legacy code. A willingness to work in Springboot is fine - as long as you are willing to learn and have demonstrable experience in an object-oriented programming language. Our Stack (we don't expect you to have all of these)
Sporty's sites are some of the most popular on the internet, consistently staying in Alexa's list of top websites for the countries they operate in
In this role, you’ll be responsible for developing microservices in a distributed deployment environment with an emphasis on containerisation with Docker and K8S. You won’t just be writing simple CRUD applications, but instead will be working on the core logic of complex systems that are accessed millions of times a day. We wrote our system from scratch about 3 years ago, so you’ll be working with the latest technology and won’t have to worry about decades old legacy code.
A willingness to work in Springboot is fine - as long as you are willing to learn and have demonstrable experience in an object-oriented programming language.
Our Stack (we don't expect you to have all of these)
Backend Application Framework: Spring Boot (Java Config + Embedded Tomcat)
Micro Service Framework: Spring Cloud Dalston (Netflix Eureka + Netflix Zuul + Netflix Ribbon + Feign)
Database Sharding Middleware: Lede Cetus
Database: MySQL and MongoDB,Mybatis, Druid
Public Cache: AWS ElastiCache + Redis
Message Queue: Apache RocketMQ
Distributed Scheduling: Dangdang Elastic Job
Data Index and Search: ElasticSearchLog
Real-time Visualization: ElasticSearch + Logstash + Kibana
Business Monitoring: Graphite + Grafana
Cluster Monitoring: AWS Cloudwatch
Tasking: Elastic Job
Server: Netty 
Responsibilities
Develop highly-scalable mobile internet backends for millions of users
Work with Product Owners and other development team members to determine new features and user stories needed in new / revised applications or large/complex development projects
Participate in code reviews with peers and managers to ensure that each increment adheres to original vision as described in the user story and all standard resource libraries and architecture patterns as appropriate
Respond to support calls for applications in production for quick diagnosis and repair to keep things running smoothly for users
Participate in all team ceremonies including planning, grooming, product demonstration and team retrospectives
Mentoring less experienced team members 
Potential On-Call responsibilities depending on team and tenure
Requirements
Minimum of 4+ Years within a relevant role
Preferred experience in Spring Boot, Spring Cloud, Spring Data and iBATIS
Strong experience with highly-scalable web backends
Experience designing highly transactional systems
Advanced proficiency in Object Oriented Design (OOD) and analysis
Advanced proficiency in application of analysis / design engineering functions
Advanced proficiency in application of non-functional software qualities such as resiliency and maintainability
Advanced proficiency in modern behavior-driven testing techniques
Deep understanding of Microservices
Proficient in SQL
Expert knowledge of application development with technologies like RabbitMQ, MySQL, Redis etc
Strong experience with container and cloud solutions such as Docker, Kubernetes and AWS Cloud
An ability to work independently
Excellent communication skills in English
Benefits
Quarterly and flash bonuses
We have core hours of 10am-3pm in a local timezone, but flexible hours outside of this
Top-of-the-line equipment
Referral bonuses
28 days paid annual leave
Annual company retreat
Highly talented, dependable co-workers in a global, multicultural organisation
Payment via DEEL, a world class online wallet system 
Our teams are small enough for you to be impactful
Our business is globally established and successful, offering stability and security to our Team Members
Interview Process
90 min HackerRank Test 
Remote video screening + ID check with our Talent Acquisition Team 
Remote video interview loop with 3 x Team Members (45 mins each)
ID Check Via Zinc & 2 references from previous employers
24-72 hour feedback loops throughout process
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Stake Capital Group Europe
DOPP is seeking an experienced Senior Python & Front-End Developer to join our expanding team. Who are we? DOPP is the first fully on-chain derivatives exchange, from the matching engine to settlement, built on Starknet. As capital efficient as centralized exchanges, our goal is to serve as the foundational layer for options products within DeFi. Your responsibilities include: Helping to design and implement functional requirements Building efficient back-end features in Python and Rust Integrating front-end components into applications using React Managing testing and bug fixes Preparing technical documentation Collaborating with UX/UI designers to implement design into the code Implementing software enhancements and suggesting improvements Requirements 5+ years of profess

DOPP is seeking an experienced Senior Python & Front-End Developer to join our expanding team.

Who are we?

DOPP is the first fully on-chain derivatives exchange, from the matching engine to settlement, built on Starknet. As capital efficient as centralized exchanges, our goal is to serve as the foundational layer for options products within DeFi.

Your responsibilities include:

  • Helping to design and implement functional requirements
  • Building efficient back-end features in Python and Rust
  • Integrating front-end components into applications using React
  • Managing testing and bug fixes
  • Preparing technical documentation
  • Collaborating with UX/UI designers to implement design into the code
  • Implementing software enhancements and suggesting improvements

Requirements

  • 5+ years of professional experience in software development within the web3 space
  • Strong Python and React skills with experience in network and concurrent programming
  • Bachelor’s degree in computer science or a related technical field
  • Experience developing REST APIs, backend services, and automated pipelines
  • Proficiency with SQL databases, GraphQL sources, and time series data
  • Good knowledge of Unix shell scripting and command-line tools
  • Familiarity with CEX/DEX trade lifecycle and common DeFi protocols
  • Excellent attention to detail and appreciation for software correctness
  • Capable of working independently with minimal guidance, demonstrating self-motivation and a proactive approach to tasks
  • Ability to execute projects quickly and maintain a high-quality standard
  • Positive attitude and mature interpersonal skills

Bonus Points:

  • Smart contract programming experience in Cairo
  • Located in European Time-zone
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