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Base is growing, and we’re excited to expand our Developer Relations (DevRel) team. Base is built on Optimism’s open-source OP Stack, and our mission is to build a global onchain economy that increases innovation, creativity, and economic freedom, and DevRel is essential to this effort. We’re joining as the second Core Dev team working on the OP Stack to ensure it’s a public good available to everyone; and contributing a portion of sequencer revenue to funding public goods.

Your work as a Senior Developer Advocate will primarily be focused on building creative onchain experiences with the Base Marketing team in order to help bring the next billion users onchain. You’ll work closely with Base engineering, product, ecosystem, and creative teams and will build on the Developer Relations team.

Come build with us!

What you’ll be doing (ie. job duties):

• Create onchain apps for the Base Marketing team
• Write smart contracts and build engaging user experiences
• Make it easier for Base builders to develop apps by creating public goods that influence the entire EVM community

What we look for in you (ie. job requirements):

• 5+ years experience as a software engineer
• 1+ years of experience building onchain
• Fluent in JavaScript/TypeScript and web3 libraries
• Expert frontend skills
• Ability to thrive in a fast-paced, sometimes ambiguous environment without much oversight
• Open source project contributions

Nice to haves:

• DevRel experience
• Experience with Go
• Experience shaping content for multi-disciplinary projects
• Experience working in a startup environment

Job #: P57893

Apply Now:

Who We Are:*

Ethena Labs is building the first ETH based yield-bearing synthetic dollar. Arthur Hayes is a founding advisor and the team has deep experience across traditional finance and crypto engineering from firms such as Cerberus, Wintermute, Flow Traders, Deribit, Paradigm, Aave, Blockdaemon and Kaiko. We are backed by every major exchange and trading entities in the space.

What we are Doing:

We are building derivative infrastructure to enable Ethereum to transform into the Internet Bond via delta-neutral derivatives positions, to create the first crypto-native, yield bearing synthetic dollar: sUSDe.

We believe creating a synthetic dollar which is not reliant on existing banking infrastructure is the single most important problem to solve and largest opportunity in crypto today.

USDe will form the first part of a broader ecosystem of products we are building including fixed and floating rate internet bonds and composable repo leveraged markets.

Join us!

The ideal candidate would be in one of the following time zones: EST, GMT, CET, EEST

The Team:

We are a small team of 16, 8 of which are engineers.  Collectively our DNA, so far, is a strong mix of high performing Web3 and Tradfi experience including, Wintermute, Blockdaemon, Capital One, Flowtraders, Bebop, SIX, Aave. The team is geographically distributed but connects daily and everyone has distinct responsibilities.  We take engineer onboarding seriously and will provide all the support you need to get up and running. We are collaborative, lean and thrive on the mission to bring such a disruptive product to market as USDe, the Internet Bond and the further supporting elements of this new ecosystem.

Who We are Looking For:

• An Engineer who is passionate about building products/applications within Defi.
• Individual who is excited by the opportunity to join a founding core team and drive a product from zero to one.
• At least 2 years of experience in developing front-ends for decentralized applications and can provide examples of prior work.
• An individual who is curious and always looking to learn new concepts on the overlap between frontier technology and financial concepts.

Responsibilities:

• You will work on our React Web3 application, which enables users to mint and stake USDe, as well as our off-chain backend python infrastructure which listens for events, manages custody positions, routes orders, etc.
• Working directly with custody and exchange providers to build information on the ongoing solvency and equity positions of internal accounts.
• Creative license to push the boundaries of Defi design.
• Collaborate with the team and cross-functional partners on all aspects of product development including smart contract back-end engineers and mentor team members to refine their technical and architectural skills

Requirements:

• Strong knowledge of full-stack, modern Javascript: React and Typescript
• Strong Python skills
• Strong knowledge and demonstrated experience working with GraphQL
• Experience with our frameworks - NextJS and TailwindCSS.
• A strong design sense including attention to detail matching a design in frontend implementation as well as good design judgment and ability to operate without a fully fleshed out design
• Expert knowledge of Web3 libraries and tools like, Viem, Wagmi, The Graph
• Understanding of concepts like caching, edge functions, RPC providers that are critical to performant frontend development in Web3.
• Fluent English, both written and spoken

Our Engineering Stack:

• Frontend: React, NextJS, Wagmi, Viem, TailwindCSS
• Backend: Python, AWS, GraphQL, Vercel

$125,000 - $175,000 a year

If you subscribe to the mission of separating the dollar from the state, then we want to hear from you!

We look forward to receiving your application and will be in touch after having a chance to review.

In the meantime, here are some links to more information about Ethena Labs to help you check us out:

Website Twitter LinkedIn Discord

• 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

• 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.

• 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.

• 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.

• 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)

• 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.

• 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.

• Actively ship production code to the web products
• Work closely with your dedicated product team
• Participate in product discussions to shape the product roadmap
• Have the opportunity to work on new and exciting features that will impact millions of lives

• Experience. You've built and ship products that have scaled to thousands or millions of users
• Customer obsession. You are passionate about the field and have the desire to build high quality product that serves customer needs
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Collaboration. You know how to inspire, play, and negotiate with opinionated designers, marketers, and PMs
• Tech Stack: Vanilla JS, ReactJS, Redux, Firebase, Typescript

• A fast-growing environment where you can help shape the culture
• An entrepreneurial crew that supports risk, intuition, and hustle
• A hands-off approach so you can focus and do your best work
• The opportunity to make an impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture

• Answer support questions related to our WordPress themes and plugins (Sydney Pro, Botiga Pro. and Merchant Pro) via our email ticketing system (HelpScout)
• Create CSS and PHP snippets for customers who request small customisations
• Communicate bugs/improvements with our developers

• You know WordPress inside out
• You are familiar with WooCommerce, and willing to learn more
• Strong HTML, CSS and PHP and preferably some familiarity with Javascript.
• An understanding of browser console errors and debugging via developer tools
• Patient and polite when dealing with support queries
• Good written English (not necessarily native, but clear and professional)

About

Crypto Bot is one of the biggest products in Telegram for buying, selling, exchanging and transferring cryptocurrency serving tens of thousands of users each month.

Ever since the launch of Crypto Bot, our goal has been to create the most powerful crypto platform in Telegram.

We are now looking for a talented Lead QA Engineer and Software Tester who is aligned with our vision and can join us on the mission to revolutionize the financial industry.

Responsibilities

– Develop the infrastructure for automated testing.

— Identify, document, and analyze bugs, providing detailed reports to the development team.

— Write comprehensive test documentation and execute test cases effectively.

Requirements

— At least 2 years of experience in software testing and QA engineering.

— Proficiency in TypeScript, and Javascript.

— Familiarity with continuous integration (CI) practices, end-to-end (E2E) testing, and manual software testing.

— Basic understanding of cryptocurrency concepts

— Excellent communication and collaboration skills to effectively work with both technical and non-technical team members.

— Demonstrated ability to develop strategic test plans and influence engineering best practices within an organization.

Why it's a fantastic opportunity

— Engage in a variety of technical tasks, ranging from straightforward to complex.

— Join a vibrant team of young professionals; our average team member is 25 years old.

— Benefit from a quick time-to-market culture with minimal bureaucracy, allowing for rapid feature rollout.

— Learn from a highly qualified and experienced team that includes top university graduates, former IT giants’ employees, and international engineering contest winners.

— Make a significant impact on the cryptocurrency industry and help shape the future of Web3.

Apply Now:

• Our JavaScript developers are sharp technical experts with the ability to think like product owners- being able to advocate for code quality as a long term strategic investment while knowing when to adapt a more start-up mentality to deliver rapid business value. They drive architecture and implementation decisions, mentor other engineers, and stay up to date with the latest JavaScript techniques and trends as part of the collective Whitespectre JavaScript brain trust. 
• Whitespectre operates on a fully-modern tech stack- toolset includes React.js/Next.js/Nest.js with Typescript, REST/GraphQL etc. Working smartly is important to us; automation, dynamic environments spin up with new feature branches and slack bot integrations control our production releases (CI/CD, AWS, Github workflows).
• We follow an agile 2-week sprint methodology with Product, UI/UX and Engineering within the team to align closely with business stakeholders and incrementally build and release new functionality.
• The majority of our projects involve building greenfield applications and our delivery teams typically own products end to end - your thinking and contribution make a big impact!
• You can read more about life in our JavaScript engineering team in the posts by our Senior Engineer, Eneko. 

• Competitive salaries, with payment in USD
• Annual Performance & Salary Reviews, with proactive career management
• 20 Days PTO & 3 Charity Days annually
• Funded face-to-face meet ups in Barcelona, as well as, South America and Asia
• Assisted Relocation package 
• Flexible working hours for efficient teaming in a 100% remote environment (proudly remote-first for 10 years!)
• Free English classes & educational expenses support
• Generous Employee Referral Plan
• Team Fitness and Charity Initiatives

• Great company environment - check out Glassdoor
• Personalized onboardings
• Opportunity to contribute to company-level initiatives
• Work with a broad range of best-in-class technologies
• Cross-company knowledge groups - improve your expertise, share your learnings and work with different technologies and tools
• Regular brown bag learning sessions
• An emphasis on Work-life balance

• The challenge of collaborating with business stakeholders and Product Managers to advocate for technology solutions while bearing in mind the tradeoffs for business results
• The responsibility of designing new architectures and being confident to justify your technology decisions. (Plus debating and recognizing when a colleague has an even better idea!)
• The opportunity to go outside your core expertise and strengthen skills with other technologies and learn more
• To solve problems that can’t be addressed by just searching Stack Overflow
• An environment where excellent communication skills (both verbal and written) are valued and honed.
• A culture where people from different backgrounds interact, collaborate and reach a shared goal

• 6+ years of experience with TypeScript/JavaScript, 4+ years with React.js and Next.js/Nest.js/Node.js
• Advanced English level, excellent verbal and written communication skills
• Experience contributing to technical decision-making within a team
• Can work full-time with a significant crossover with the core hours: 11am - 7pm Central European Time
• Live outside of the US. Please, no recruitment agencies.

• Apply by completing the form below - and we’ll get back to you. Candidates enjoy meeting our JavaScript Technical Leads and discussing interesting coding challenges as part of our selection process
• Or email us with any questions on email 
• Our process includes the following:
• A 30/45 minute video call with our Talent Acquisition team to understand your experience & expectations
• A 60 minute technical interview to explore your technical capabilities
• Final interview(s) with the company leadership to confirm fit & finalize your offer

Department environment

We aim to achieve a balance between corporate culture and start-up culture, and at the same time be close to product solutions. Therefore, we divide our department into small self-sufficient teams that can make decisions on their own. This applies to all stages of product production: from conceptualisation to architecture, to build, to release, to iteration and support.

You'll do lots of research and develop your knowledge regarding cryptocurrency and blockchain including data processing, protocols integration etc. In addition to this, you'll be surrounded by friendly high-level specialists who are ready to share their knowledge.

The team is currently working on several major product changes that will improve client experience with cryptocurrency interaction like secure cryptocurrencies management or simplifying user flows when interacting with Decentralised Finance (DeFi) protocols.

Role Responsibilities

• Support and improve current services that handle over 50 blockchain protocols with more than 500 cryptocurrency assets.
• Research and building new blockchain integration and solutions, including blockchain data processing, cryptocurrency protocols integrations, DeFi integration, etc.
• Support and solve problems from clients and stakeholders.

Your experience, skills and knowledge

• Professional experience in building software with an OOP language: Scala, JS/TS (Node.js), Kotlin, Java, or Go.
• Familiarity with relational databases such as PostgreSQL.
• An understanding of the critical importance of unit tests, well-versed and able to build automated tests of server-side code.
• You’re professionally curious and willing to develop yourself as a multi-stack developer. You are ready that you should research and use technologies and programming languages that you didn’t face before.

Desirable

• Proficiency with containerisation and DevOps practices.
• Experience developing Smart Contracts.
• Familiarity with working on blockchain development (cryptocurrency wallets, blockchain data processing, DeFi etc).
• Experience in building and optimising systems for working with large amounts of data, both at the database level and interactions between services.
• Experience with Go.

Our core tech stack

For this position, you will predominantly work with Scala and Typescript.

• Software development languages: Scala, Javascript/Typescript (Node.js)
• Storage: PostgreSQL, Mongo DB, Clickhouse
• Backend Frameworks: Spring, Akka HTTP
• Frontend Frameworks: React, ElectronJs
• Interservice communication: RabbitMQ
• Architecture: Service-Oriented Architecture (SOA)
• Infrastructure: AWS, Terraform, Ansible, Docker, Mesos/Marathon container orchestration, Consul, Nginx, GoCD by ThoughtWorks CI/CD, Prometheus, Kibana, Grafana

The benefits offered

• Holidays: 27 days per annum paid holiday, in addition to bank holidays
• Seniority Days: One additional day of paid time off is awarded per year of service (up to three years)
• VitalityHealth
  • Medical Insurance: Copper provides all employees with individual cover. Medical history is disregarded, and a 24/7 virtual GP is available (£100 excess per person per year)
  • Dental Insurance: Comprehensive dental cover for preventative, restorative and emergency treatment
  • Audiology Cover: Employees can claim back up 80% of costs, up to £300, for any hearing tests or hearing aids
  • Optical Cover: £500 optical cover (through Vision Express) or 80% reimbursement up to £300 for any other optician
  • Menopause Support: Unlimited support for those experiencing symptoms of the menopause, such as video consultations with a dedicated menopause practitioner
  • Vitality services also include an additional £100 for minor diagnostic tests and private prescriptions, including home diagnostics.

• Pension up to 10% matched Contribution to our Company Pension Scheme via Smart Pensions
• Home Working Energy Support Scheme
• Cycle to Work
• Life Insurance cover: Four times your base salary
• EAP: access unlimited mental health consultations and contact a 24/7 confidential helpline for emotional support.
• ClassPass
• Unmind
• Sponsored Learning and Development opportunities
• Regular company events and social activities

In return for everything you can bring to Copper, we can offer you an exciting, challenging role in a fast-growing and dynamic business, with career opportunities and welcoming working environment.

If you think you have everything we're looking for and more, then we'd love you to apply for the opportunity.

Apply Now:

• A strong frontend engineer with experience in React
• A proponent of user-centric development with an eye for design and user experience.
• Someone who is able to put themselves in the user’s shoes and contribute to discussions around product development. In other words, your coding abilities are complemented by a solid understanding of business models, business goals, user journeys, value propositions, and the ability to discuss product features in detail.
• Someone with outstanding communication skills.
• A software engineer with solid debugging and testing skills.
• Strong work ethic and pride in the quality of your code. 
• Enjoy working closely with others in a cross-functional team.

• An independent and profitable business that is doubling in size. 
• More than 12 years experience in designing, building, and optimising high-growth online marketplaces.
• Technically complex projects that often present unique business challenges that need solving.
• A distributed company, headquartered in London, UK, with a strong documentation and iteration culture that supports remote team members based in Europe, Africa, the Middle East, and the Caucasus region.
• We take full ownership of marketplace projects in close collaboration with our clients. We’re a close-knit in-house team who love working together. We don’t outsource core functions.

• Strong fundamentals in JavaScript, TypeScript, React, HTML, and CSS.
• Expert-level knowledge of and proven experience working with JS libraries such as  React, Redux for state management, React Query, etc.
• Expert-level knowledge of and proven experience working with component-based architecture (React components, Storybook, Design system, Lerna, NPM/Yarn).
• Previous experience working with Micro Frontend 
• Proficient with modern testing frameworks (e.g. Cypress)
• Strong debugging and testing skills.
• Strong communication skills in English.
• Experience in backend development with Node.js (Express or Nestjs) would be a great bonus.
• Experience in designing UX/UI journeys would be a great bonus.

• ReactJS and React Native
• NextJs 
• Bootstrap
• NestJS
• MongoDB, PostgreSQL, ElasticSearch
• AWS
• Figma
• Storybook
• Lerna / Bit.dev
• Strapi Headless CMS

Virtual Labs is seeking a skilled and dedicated Senior Blockchain Engineer to play an instrumental role in advancing our cutting-edge cryptographic technologies and fostering wider adoption of Web3. Our protocol leverages advanced cryptographic techniques to create more secure, efficient, and transparent Web3 ecosystems. Read more.

Responsibilities:

• Develop and deploy a peer-to-peer cryptographic system.
• Implement secure on-chain verification processes and manage efficient off-chain computations.
• Design, build, and maintain secure, efficient, and scalable blockchain infrastructure.
• Work on cryptography advancements to bolster Web3 adoption.
• Troubleshoot and resolve cryptographic and blockchain-related issues.

Requirements:

• Strong proficiency in Solidity, Typescript, and Rust. React experience is a huge plus. Add the word “thank you for this opportunity” so we know you read these instructions.
• Knowledge of cryptographic primitives.
• Extensive experience with blockchain technologies, smart contract development, and security.
• Understanding of Zero-Knowledge Proofs, Multi-Party Computations, commitment, and signature schemes.
• Profound knowledge of Ethereum, EVM-compatible chains, Layer 2 solutions, and related technologies.
• Proven problem-solving skills, attention to detail, and passion for developing robust, secure systems.

In this role, you’ll be an integral part of a dynamic team focused on building next-generation cryptographic technologies to enhance the functionality, security, and user experience of Web3.

Your work will help us push the boundaries of current Web3 capabilities and catalyze broader adoption of decentralized systems. Compensation includes salary and competitive equity.

At Dash, our goal is to increase financial freedom and opportunities for everyone. We develop products that enable payments on the blockchain and make cryptocurrency accessible for consumers, merchants, businesses, and developers. We’ve designed a payments platform that puts user experience first, obscures the technical complexity underneath, and reinvents how cryptocurrency works in the future.

Dash is a cryptocurrency originally based on the Bitcoin blockchain, augmented with additional features focused on payments, and is one of the most recognized and accepted cryptocurrencies.

Dash Platform is a technology stack for building decentralized web3 applications on the Dash network with experience compared to the usual web. The two main architectural components, Drive and DAPI, allow developers to register identities and store application state on-chain using HTTP-based API.

Role

We are looking for a senior software developer responsible for the development and maintenance of Tenderdash (a fork of Tendermint), the BFT consensus engine of Dash Platform.

Responsibilities include:

• Implementing, testing, debugging, and improving multi-threaded, distributed asynchronous protocols.
• Profiling, managing, and analyzing metrics to optimize the performance of an L2 blockchain network.
• Identifying issues across various software components. As you get more familiar with our project, you may also contribute to other Dash Platform components, blockchain, and consensus libraries. You will collaborate with engineers and developers in the Dash Platform team to create new Open Source products in an Agile environment. This role presents an opportunity to work with an innovative cryptocurrency team and influence the way people interact with their money.

Responsibilities in details:

• Implement new features, maintain, improve, troubleshoot and document open-source Tenderdash consensus engine
• Contribute to the open-source development of Dash Platform components and libraries
• Discover and eliminate bugs, race conditions. Increase code test coverage
• Participate in the testing and deployment of new releases
• Contribute to developments and improvements of our continuous integration software
• Create benchmarks for various methods and work to increase performance in critical areas
• Strive to find ways to improve code quality
• Work with our technical writer to explain various functionality you will work on
• Apply creative solutions to eliminate limitations of cryptocurrency and provide improved user experiences

Required Qualifications

• 7+ years in software development
• 2+ years of production-level Go experience
• Good understanding of basic cryptography and data structures
• Practical experience with Docker and Docker Compose
• Practical experience with multi-threaded, distributed applications
• Knowledge or practical experience in peer-to-peer technologies
• Basic knowledge of blockchain technology
• Knowledge of functional and object-oriented design principlesExperience delivering high-quality code using integration and unit tests
• Ability to work remotely without constant supervision and be self-motivated
• Proficiency in the English language. You must be able to communicate with the team, both orally and in written form.
• Strong problem solving and critical thinking skills
• Attention to detail and a passion for software design
• Working hours overlap of at least 7AM UTC - 10AM UTC
• Available to help in case of critical emergencies (eg. chain halt)

Desired Qualifications

• Experience with Tendermint / CometBFT / Cosmos SDK (strongly desired)
• Experience building, monitoring and maintaining highly-available, high load production services
• End-user experience with metrics, logging and monitoring stack (Prometheus, Grafana, Elasticsearch, etc.)
• Good understanding of JSON, protocol buffers, REST and gRPC
• 3+ years of studies in Computer Science, Engineering, or related subjects at the university level
• Experience with blockchain technologies, especially within the field of cryptocurrency (strongly desired)
• Experience designing and implementing fault-tolerant, gracefully degrading software architecture Github Actions or similar CI/CD solutions
• Javascript / Typescript
• Understanding or interest to learn advanced cryptography
• Strong preference will be given to those candidates who provide evidence of their knowledge/ability via pull requests to any of our official Github repositories

Perks

• Contribute to technology at the forefront of the web
• Work with a company on a mission to have a positive impact
• Work on a fully remote team
• Work on a small, passionate team
• An entrepreneurial opportunity where you can have oversized impacts
• Opportunity to drive innovation and strategy
• Your work will be open source

Location / compensation

• Location can be anywhere – this is a 100% remote position
• Compensation will be at competitive rates and based on experience and location

Senior Full-Stack Developer

Are you looking for a rewarding Full-Stack Developer role in the web3 sector?

Protokol are seeking a passionate and motivated Senior Full-Stack Developer to help develop our products and solutions. Working alongside a friendly and creative development team, you’ll be tasked to work on a wide variety of projects, from developing new features for existing products, to helping create custom solutions for our clients.

This role would suit a candidate from a software development background, with experience in web3 and AWS, and someone who is seeking to be a key player within a rapidly growing team. It would also suit an ambitious and determined individual seeking the opportunity to further their career within Protokol as we scale.

Job Role & Responsibilities

• Develop new user-facing features related to our products
• Build reusable code, components and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Collaborate with other team members and stakeholders, making it possible to quickly jump between projects and responsibilities
• Report to team lead/CTO with issues and any risks identified
• Collaborate with back-end developers and web designers to improve usability. Ensure that all user input is validated before submitting to back-end
• Get feedback from, and build solutions for, users and customers
• Help back-end developers with coding and troubleshooting
• Ensure high quality graphic standards and brand consistency
• Stay up-to-date on emerging technologies
• Review Pull Requests related to our project
• Follow our contribution guidelines
• Follow our Code of Conduct
• As an employee of the Protokol, represent the company in the best possible way and be respectful when commenting and communicating within community/customers (Slack, Pull Requests and any other Protokol related communication)

Required Skills & Experience

• Proven work experience as a Full-Stack Developer
• AWS experience:
  – AWS CDK / AWS CloudFormation / or Infrastructure as Code in general
  – AWS API Gateway
  – AWS Lambda
  – AWS DynamoDB
  – AWS S3
  – AWS IAM
• GitHub Actions (or CI/CD in general)
• Can develop, debug and work with cloud-native applications
• Understands:
  – Serverless architecture
  – Event-driven architecture
  – SaaS application model from engineering perspective
• Has worked with Microservices; understands loosely coupled infrastructure
• Experience handling multitenancy within an application
• Experience working with data-heavy applications, can design database structures and apply optimizations when needed
• Understands deployment strategies like blue/green, canary deployment
• Great understanding of Front-End technologies (React, Angular, Vue) – senior in one of the stacks, React preferably
• Great understanding of asynchronous request handling, partial page updates
• Proficient understanding of client-side scripting and JavaScript frameworks
• Strong understanding of dApp development process and web3 concepts
• Familiarity with web3 and blockchain technology
• Proficient understanding of code versioning tools – Git

Benefits

Does this sound like the perfect role for you? Want to understand what we have to offer? As well as an exciting opportunity to join a fast-growing and innovative company on the cutting-edge of an exciting new industry, you’ll also benefit from…

• Remote working (with flexibility on working hours), allowing you to balance your life and career to enjoy both to the fullest. We’re accommodating of people’s needs. We DO NOT believe in time keeping and logging hours.
• Competitive salary
• Flexible vacation time including 20 days holiday allowance plus national holidays.
• Strong Vision, Mission, Values and Leadership as well as a strong focus on our people.
• Flexible career development opportunities and opportunity for advancement into leadership as we grow
• Work alongside talented and motivated colleagues, in a fast-growing and innovative company

Apply Now:

Instructions on how to apply 

• Build end-to-end products to revolutionize the revenue cycle management process for providers
• Be a part of a tremendously fast-paced team that celebrates fast execution and decision
• Work across the entire software stack
• Work with a stack that includes Python, Javascript, Vue, React Native, Flask, and other frameworks

• Able to work flexible hours based on US time-zone 
• At least two years of production software engineering experience
• Expert in Python
• Able to work on both front-end and back-end in general and deliver product end to end
• Basic understanding of cloud solutions (GCP, Docker, Kubernetes)
• Familiarity with modern software development methodologies and cycles
• Understand standard web-based technologies, such as restful standards and relational databases (eg PostgreSQL)
• Have a strong product engineering sense with a can-do builder attitude
• Able to identify opportunities to improve the current process

• Having worked on greenfield projects before, build and ship products from scratch 
• Worked in the healthcare industry before
• Experience working in a fast pace environment (we ship fast)
• Remote work experience
• Familiarity with BI software

• Execution focused, driven team: Join a team with an incredible record - we are the smallest, fastest company in history to receive FDA hematology clearance. We are also the largest Remote Patient Monitoring company in the US, with a fast-growing SaaS Revenue Cycle Management business as well
• Technology Focus: Revolutionizing how technology can be used in the healthcare industry
• Strong Backing: $132M Series B raised from the likes of Sequoia, General Catalyst, Tribe, Y Combinator
• Mission Driven: We are changing the way healthcare is provided, bringing it directly to the people who need it with technology-enabled solutions
• Incredible Growth: Revenue growth of 5x over the past 6 months and we're just getting started!

Aragon is a small team of people that spans a broad range of backgrounds, interests, and geographies. We’re entrepreneurs and Ph.D.s, technologists and skeptics, troublemakers and problem solvers, who are building unstoppable tooling for the creation and management of Decentralized Autonomous Organizations (DAOs).

Aragon has overseen the production of the leading smart contract framework for DAOs, with toolkits for developers to seamlessly integrate their own apps with DAO functionality.

As frontend engineer at Aragon, you will join our App Team. Aragon App is our application to interface with the Aragon OSx smart contract framework - which is used for creating and managing the next generation of digital organizations.

We will only consider candidates with both Next.js and web3 experience. You should be eager to help us prove the feasibility and value of decentralized governance.

💪 What do we expect from a Senior Frontend Engineer?

• You naturally translate user needs into production-ready code. You understand that there are DAO builders, voters, and degens on the other side, each with their own unique needs, and you are eager to seek feedback from them to better understand what they need to better participate in their DAO.
• You are comfortable taking ownership of a piece of our stack, establishing best practices, and becoming the “go-to” point of contact, while simultaneously mentoring more junior developers along the way.
• You are enthusiastic to coordinate with other domain specialists and departments, further deepening your knowledge of the ever-expanding technologies of web3.
• You are actively involved across the discovery and development pipeline, from collaborating with UX/UI designers and creating prototypes to implementation, documentation and guides, deployment, and live maintenance. At each stage of the pipeline, you are focused on high quality delivery.
• You are a natural collaborator. You use code reviews to better understand your team’s work, improve the quality of our commits, and learn something along the way. During daily standup, you know when you are needed and proactively solve your teammate’s problems.

⚠️ Minimum requirements

• Proven ability to deliver open source applications that deal with blockchain, cryptography, smart contracts, decentralized systems, or any related technology in the web3 ecosystem
• 4+ years experience in one or more general purpose programming languages such as JS/TS
• Knowledge about the internals of JavaScript engines, browsers, and how to work with React.js
• Experience with well-known JavaScript frameworks (particularly Next.js)
• Knowledge of basic design principles, including layouts, aesthetics, and how to work with a UX team and with a design system
• Able to advocate and enforce good development practices on the team, including testing (unit, integration, e2e), clean code principles, documentation, etc.
• Experience working in agile environment, git flows, and are comfortable in the tools (e.g. Jira, Github)
• Excellent English communication - both written and oral
• You are able to attend quarterly offsites - usually located in or around Europe - to work in person with your team
• Passionate about the possibilities of decentralized autonomous organizations and the impacts they may have on how humans work together to solve problems

💡 Bonus skills

• Some experience with the other skills needed to be successful with our tech stack (Ethereum/EVM, HardHat/TypeChain, GraphQL/Subgraph, Cypress, etc.)
• Experience working on a project with a module or plugin system

We value freedom and responsibility among our contributors. In practice, this means that we’re a remote distributed organization that’s flexible as to where you want to work and your schedule. We will trust you to accommodate and support your team, and communicate if you ever feel stretched thin.   You will get all of the resources needed to be effective, whether its for setting up your remote work environment or a personal development budget.

This role reports to Aragon X, a Swiss AG dedicated to advancing the Aragon Project. We are an Equal Opportunity Employer supporting a community of DAO creators, developers, and users experimenting with new forms of social coordination and governance.

• 5+ years of proven work experience as a WordPress Developer.
• Experience in plugin development, and theme integration.
• Knowledge of frontend technologies including CSS3, JavaScript, HTML5, and jQuery.
• Knowledge of code versioning tools including Git, Mercurial, and SVN.
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Experience working with debugging tools such as Chrome Inspector and Firebug.
• Good understanding of website architecture and aesthetics.
• Capacity to manage projects.
• Good communication skills.

• Time zone: CET (+/- 3 hours).
• Knowledge of TypeScript.

• Designing and building the website frontend.
• Creating the website architecture.
• Designing and managing the website backend including database and server integration.
• Generating WordPress themes and plugins.
• Conducting website performance tests.
• Troubleshooting content issues.
• Conducting WordPress training with the client.
• Monitoring the performance of the live website.

• 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 time
  Only one hiring process with the possibility of several positions, without any additional tests.

• 3 years of concentrated experience in Flutter 
• 5+ years of experience in software development with a robust background in any framework/language/OS such as React Native, iOS (Swift), Android (Kotlin)
• Proven track record of deploying applications on Google Play/App Store using Flutter.
• Profound knowledge of front-end languages like HTML, CSS3, and JavaScript.
• Comprehensive understanding of Object-Oriented programming languages like Java and C++.
• Experience with version control tools (Git, Subversion, etc.) and IDEs (Android Studio, VS Code, etc.).
• A commitment to following best practices and conventions in software development.
• Ability to work independently with minimal supervision.
• Intermediate-advanced English level, with excellent communication skills for both technical and non-technical clients.

• Time zone: CET (+/- 3 hours).

• You will be building and shipping robust apps to Android/ iOS devices (using a single codebase).
• ​​You will be running and designing product application features across various cross platform devices.
• You will be writing readable and clear code that will be extensively documented for future use and upgrades.
• You will be sharing feedback and brainstorming ideas with teams to improve the development process.
• You will put effort in staying up-to-date with the latest technologies.

• 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 time
  Only one hiring process with the possibility of several positions, without any additional tests.

Apply Now:

• Develop web apps using React consuming server-side JSON restful services, WebSocket events, and WebRTC streaming
• Discuss with the team to understand the functionality and come up with innovative ideas for the frontend development for the best user experience
• 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

• Work together with the Product and Engineering teams on the current sprint/cycle
• Work together with Backend Engineer on creating/updating API endpoints or WebSocket events
• Create unit-tests
• Refactor the code. Improve the code quality
• Write a small daily report (just a few lines) about the work progress

• At least 8 years of experience in the Frontend Development area
• English: free speaking level (fluent / advanced)
• Knowledge of HTTP and WebSocket protocols
• Highly proficient with React and JavaScript using Babel and/or Typescript
• Can deliver tasks using top-notch JavaScript, HTML5, and CSS3 techniques
• Knowledge of cross-browser compatibility issues and client-side performance considerations
• Can create Unit-tests for components that you created
• Experience with LESS, SCSS, and CSS Modules
• Experience in NodeJS
• Strong experience in the Git subversion system
• Continuously learning new techniques, interested in exploring the tools that big companies use, and are aware of the trends in the frontend dev community
• Located in the timezones between GMT -1 and GMT +4

• Experience running webinars
• Experience in creating and supporting UI libraries with Storybook
• Experience in WebRTC
• Experience in testing frameworks
• Experience in CI/CD

• 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

As our DevOps Engineer, you will be helping us build and maintain blockchain networks and protocols. You will work on improving our current infrastructure including security, automation, and monitoring among other things. You will also have the chance to dive deep into new blockchain protocols, run testnets, build secure and scalable infra and maintain it.

What will you do?

• Build secure and reliable infrastructure to monitor, detect and mitigate performance and security issues
• System administration activities for Linux servers, which includes routine, proactive daily management of the health, stability, and availability of system infrastructure
• Create and maintain system procedural and technical documentation
• Stay up to date and build on peer-to-peer networking security best practices
• Create, maintain and communicate threat models + risk assessments for all systems we operate

What excites us about you?

• You have experience as DevOps/SRE/Infrastructure engineer
• You have the ability to program in one or more languages like Python, GoLang, Bash or Javascript
• You have experience managing server infrastructures with high availability requirements
• You had designed secure networks, systems, and application architectures
• You had set up and maintained software in both data centers and cloud environments
• You have a deep understanding of sockets, full networking stack, and Linux security
• You possess the knowledge of building automation and CI/CD processes and tools
• You are experienced with Docker, Kubernetes, and other cloud deployment technologies
• You have flexibility, teamwork, and you are comfortable with ambiguity, able to take charge and get things done despite the unknowns

What will be great to have?

• You have an understanding of the blockchain space and blockchain technology
• You possess knowledge of cryptography and security best practices
• You have contributions to open source communities

If those describe you, this is the right opportunity for you!

Why are we awesome you ask?

We are truly at the forefront of the crypto ecosystem as maintainers of the infrastructure layer of blockchain networks! We practice the crypto team mentality by assembling a truly global and diverse team.

We collectively represent more than 12 different countries and are united in a single mission: building out the future of decentralization. Crypto is here to stay, having introduced novel ideas such as DeFi, NFTs and DAOs. At the core of all this are teams like us working relentlessly to build the necessary tools and applications that help run and secure blockchains.

Here are some other reasons you should join us:

• We have employees from over 10 countries across the globe, and you will be able to meet interesting people from different backgrounds and cultures. Distributed and remote work is baked into our culture.
• We are one of the top staking service providers with over $3B of assets staked across our validators. We actively explore and develop new products related to staking. You will work on high-impact engineering projects building exciting new products in a startup environment.
• We have a capable and passionate team. You will find teammates who are power DeFi users, intense NFT collectors, Bitcoin & Ethereum knowledge nerds, etc. You can learn and debate everything on crypto with our teammates.
• We are not backed by VC funding, and we are already profitable. Our financial independence means that we can make decisions independent of VCs, and we prioritize our ideals of decentralization, user sovereignty, and user privacy over simply making a profit. It also means that, unlike most other startups, stakefish can provide you with a stable low-risk employment opportunity without fundraising concerns.

We are seeking a talented mid-level frontend developer to join our growing web3 engineering team. In this role, you will be responsible for building and maintaining the user interfaces for our decentralized applications, leveraging the latest web3 technologies.

Key Responsibilities:

• Develop modern, responsive, and user-friendly web interfaces using React, Viem, and Wagmi.
• Integrate with blockchain networks and web3 protocols using libraries like Ethers.js.
• Implement state management solutions and handle asynchronous data fetching with GraphQL.
• Collaborate with the design team to translate designs into functional UI components.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews, testing, and deployment processes.
• Stay up-to-date with the latest web3 trends and best practices.

Required Qualifications:

• 2-4 years of experience in frontend web development.
• Proficient in JavaScript and TypeScript.
• Solid understanding of React and its ecosystem (e.g., Redux, React Router).
• Experience with web3 technologies, including Ethereum, decentralized applications, and blockchain concepts.
• Familiarity with Viem, Wagmi, and Vercel.
• Ability to work with version control systems like GitHub.
• Strong problem-solving and critical thinking skills.
• Good communication and collaboration abilities.

Preferred Qualifications:

• Experience with GraphQL and its integration with React.
• Understanding of server-side rendering and static site generation.
• Knowledge of web security best practices.
• Familiarity with Solidity and smart contract development.

Rust Developer for Solana Blockchain

Remote (World-wide)

Job Type: Flexibly Contract, Hourly

Job Overview:

We are seeking a skilled Rust Developer with experience in blockchain technologies, specifically on the Solana platform. This position is contingent upon our client's formal engagement with us and will commence on a flexible hourly basis. There may be an opportunity in the future for this position to transition into a permanent, full-time role. As a Rust Developer, you will be instrumental in developing and optimizing our DeFi protocols to improve scalability and user experience.

Responsibilities:

- Develop, test, and deploy smart contracts on the Solana blockchain.

- Write robust, efficient, and secure code in Rust.

- Collaborate with the product team to design and implement new features.

- Analyze and optimize system performance to handle high transaction throughput.

- Participate in code reviews and maintain standard coding practices.

- Stay updated with new blockchain technologies and cryptography methods.

- Proficiency in Rust programming language.

- Experience with blockchain technology, specifically Solana.

- Understanding of DeFi protocols and the broader DeFi ecosystem.

- Strong background in algorithms, data structures, and software design.

- Experience with distributed systems and consensus mechanisms.

- Ability to work independently and as part of a remote team.

Preferred Qualifications:

- Familiarity with other programming languages such as C++, Python, or JavaScript.

- Experience with Anchor framework on Solana.

- Contribution to open-source projects.

• Competitive hourly rate

• Flexible working hours
• An opportunity to work with a great team of softwatre developers with ongoing training/support

We want to inform you that due to the high volume of applications we receive, we may not be able to respond to each applicant individually. However, we assure you that your application has been carefully reviewed by our hiring team.

If you do not hear from us within two weeks from the date of your application, please understand that we have proceeded with other candidates whose qualifications more closely match the requirements of the position.

We genuinely appreciate the time and effort you invested in applying for this role. We encourage you to explore other opportunities with us in the future.

Commitment to Equality and Accessibility: At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing email.

Apply Now:

• Collaborate with team on product development and feature planning
• Develop and maintain our web application with ES6
• Implement API requests and responses on the client-side
• Work closely with our designer to implement new features from mockups and prototypes using React, JSX
• Build reusable React components that can apply to a variety of use-cases throughout our app
• Improve existing React/Elixir code
• Contribute to Phoenix API and tooling
• Triage bug reports

• Minimum 2 years experience in a development role
• Demonstrated competency with Javascript and React (open source is a huge plus)
• Familiarity with concepts of RESTful APIs
• Excellent written English communication skills
• Detail oriented
• Good at receiving and giving constructive feedback

• Experience with Elixir/Phoenix
• Experience managing deployment environments (we use Ansible/Docker)
• Familiarity with mobile app development using React Native or Swift
• Familiarity with JavaScript bundling tools like Babel and Webpack
• Familiarity with GraphQL
• You care about design and user experience
• You think in systems. You’re conscious of making our process more modular, reusable, and composable
• Solid grasp of DB maintenance/troubleshooting (we use Postgres)

About the Opportunity

We’re looking for a Software Engineer to join the remote-first wallet team at Trust Machines, and help us craft a beautiful, consumer-facing cryptocurrency wallet.

This role is critical in building a premier user experience for the Stacks ecosystem, fostering an engaged user base, and broadening the wallet’s capabilities within the Bitcoin realm.

The ideal candidate has experience building user-friendly applications in a startup environment. As a core engineer for this product, you’ll be responsible for implementing high-quality features across a handful of platforms.

What You’ll Do:

• Work closely with the team to understand user needs, and work on high-impact features for our Web Extension and mobile wallet, while championing mature engineering practices.
• Work closely with engineering peers to align on architectural direction and consistent use of design patterns, while considering how code can be shared cross-product.
• Collaborate with the design team, considering multiple ways to solve problems, weighing up implementation complexity, user experience, and product impact.

What We’re Looking For:

• 5+ years in similar role(s) for consumer software (strong requirement)
• 2+ years at startup(s)
• Preference for remote, OSS work in direct contact with the product’s user base via Discord and other public channels
• Located between GMT -5 and +3
• Experience with Typescript, frontend frameworks (ideally React), CI/CD tooling
• Demonstrable experience of modern web development: JavaScript APIs and tooling, state management, accessibility, performance, and security
• Familiarity with UI design best practices
• High degree of user empathy, inclination to question assumptions, independent self-organizer, openness to feedback, and comfort with technical complexity
• Excited to work in the crypto industry

We’d Also Like to See:

• Experience with ReactNative and/or Web Extensions
• Knowledgable about Bitcoin, and its underlying cryptography
• Existing contribution to Stacks ecosystem
• A security-focused mindset, and familiarity with common attack vectors

What we offer:

• Work from home
• Competitive salary ($180-$220k)
• Company equity
• Open Vacation Policy, take the days you need
• Up to 16 weeks of paid parental leave
• Your choice of technical setup and equipment

Please note that benefits vary by country. The ones shown above are for our full-time U.S.based employees. Benefits information for non-US-based positions will be provided to individuals who interview for those roles.

Trust Machines is proud to be an equal opportunity employer and deeply cares about building a diverse team. Trust Machines is committed to building an inclusive environment for people of all backgrounds. We do not discriminate based on race, color, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by law.

Apply Now: