The mission of the Platform Product Group engineers is to build a trusted, scalable and compliant platform to operate with speed, efficiency and quality. Our teams build and maintain the platforms critical to the existence of Coinbase. There are many teams that make up this group which include Product Foundations (i.e. Identity, Payment, Risk, Proofing & Regulatory, Finhub), Machine Learning, Customer Experience, and Infrastructure. We are looking for an experienced backend engineer to join our Identity team within our Platform Product Group.

The Core Identity team at Coinbase has a critical responsibility as the identity provider service for the entire organization. This team operates at T0 level and handles essential tasks such as managing user data, user grouping, authorization, and user registration services across all Coinbase platforms. As part of the Identity organization, you will help build a unified, trusted, and secure platform for customer identity, access, and authorization for every Coinbase product and the broader web3 ecosystem. Coinbase is the market-leading crypto platform. Our customers can seamlessly and securely interact with Coinbase’s products and the broader web3 ecosystem.

Identity is a critical and uniquely challenging part of helping Coinbase succeed in creating an open financial system for the world. For web3 to thrive, we need to deliver the security of Finance 1.0 and the ease-of-access of web2. Walking the tightrope between usability and security critical to the success of Coinbase’s expanding product suite and to unlocking access to the web3 ecosystem for the next 1B+ users.

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

• Build new services to meet critical product and business needs using Golang.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Articulate a long term vision for maintaining and scaling our backend systems and the teams running them.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

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

• You have at least 5 years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built financial, high reliability or security systems.

PID -P53363

Apply Now:

Apply Now:

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:

• We respect your time: here is no micromanagement or screen trackers.
• You can earn with us $4k - $7.5k monthly - the rate depends on your skills and experience. We've already paid out over $10M to our engineers.
• You will enjoy your work - it’s possible to communicate async and choose a schedule that works best for you.
• You will communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah?
• We will support you from the time when the application will be started during all our cooperation.
• No more hunting for clients or negotiating rates - let us handle the business side of things so you can focus on what you do best.
• We'll manually find you the best project according to your skills and preferences.
• You will work at the fast-paced startup environment that will keep you motivated and engaged.
• We will connect you with the best developers in the world through our community.

• Senior Software Developer
• Senior+ Software Developer

• Proficiency with PHP/Laravel (2+ years of exp)
• Strong experience with React (2+ years of exp)
• Experience with relational databases (e.g., MySQL) and NoSQL (e.g., MongoDB).
• Proficiency in developing both GraphQL and RESTful APIs.
• Familiarity with cloud computing (GCP, AWS, Azure)
• Experience with other PHP frameworks such as Symfony, Yii, or CodeIgniter would be a plus
• Familiarity with deployment workflows, continuous integration/continuous deployment (CI/CD) processes, and containerization tools like Docker is a plus.
• Good command of English, both written and spoken, as you’ll be communicating with clients directly
• Strong organizational skills — ability to work full-time remotely with no supervision
• Responsibility — we want to trust you
• Soft skills — we value clear and effective communication, at the same time, don't force you to become a public speaker

• VideoAsk (about 10 minutes)
• Completing your me.lemon profile
• 30 minutes Screening call with our Recruiters
• Technical Interview with our Developers
• Feedback
• Magic Box (we are looking for best project for you)

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

Instructions on how to apply 

👋 Hey there

We’re OpenCover — our mission is to keep the world safe onchain.

We are assembling a world-class team of engineers, product and business leaders to deliver onchain safety at scale and drive wider adoption.

With over $7 billion lost to onchain exploits to date, we work with leading cover and insurance providers to help individuals and institutions protect themselves against onchain risks such as smart contract exploits, malicious transactions and governance attacks.

OpenCover is backed by leading investors including NFX, Alliance, Village Global, Jump Crypto, Orange DAO and Coinbase Venture’s Base Ecosystem fund.

🚀 Your role

We are looking for a product-minded engineer to join our founding team with a focus on developing core product infrastructure and company-wide internal tools. This would involve combining onchain and offchain data. Depending on your appetite, your responsibilities could expand significantly.

You’d be a great fit if

• You’re a generalist who easily adapts to new scenarios and technologies. You go all out to use your knowledge to find the right solutions for the problems at hand—we’re here to support and collaborate with you every step of the way.
• You’re passionate about building products from the ground up in a tight-knit team with a strong focus on collaboration and proactive communication.
• You have 5+ years of full-time experience developing and shipping customer-facing applications.
• You’ve interacted with protocols on Ethereum (or any EVM-compatible blockchain) and understand the building blocks and principles of blockchains.
• On the frontend, you have a strong command of TypeScript and React.
• You’ve designed and implemented backend services using Node.js with TypeScript.
• You’re no stranger to PostgreSQL and a messaging broker.
• You have hands-on experience with a cloud platform, Docker, Bash and Linux.

🙌 Our offer

• Play a key role in driving onchain adoption and directly impact company trajectory.
• A remote-first environment with the option to work from our London office.
• Flexible working hours and 28 days paid holiday per year.
• Starting salary of $90,000 – $120,000 per annum + 0.1 – 0.25% in equity.
• $1,000 budget for home office setup, wellbeing and personal development every year.

Ready to apply?

Head to https://opencover.com/apply/fse and get shortlisted in 10 minutes or less.

• 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!

• 5+ years of proven experience as a DevOps Engineer with a strong focus on AWS.
• In-depth knowledge of AWS services and architecture, including EC2, S3, Lambda, VPC, RDS, and more.
• Proficiency in scripting languages (e.g., Python, Bash) and automation tools.
• Experience with containerization and orchestration tools (Docker, Kubernetes).
• Familiarity with Infrastructure as Code (IaC) principles and tools (CloudFormation, Terraform).
• Experience with version control systems (e.g., Git) and agile development methodologies.
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork skills.

• AWS certifications (e.g., AWS Certified DevOps Engineer) are a plus.

• Design, implement, and manage scalable and highly available cloud infrastructure on AWS.
• Develop and maintain automation scripts using tools such as AWS CloudFormation, Terraform, and scripting languages (e.g., Python, Bash) to automate infrastructure provisioning and configuration.
• Establish and optimize CI/CD pipelines using AWS CodePipeline, AWS CodeBuild, and other relevant tools to automate software deployment.
• Implement and manage containerized applications using AWS services such as Amazon ECS or EKS, and orchestrate containers using Docker and Kubernetes.
• Implement Infrastructure as Code principles to define and manage infrastructure resources.
• Set up monitoring and logging solutions using AWS CloudWatch, AWS CloudTrail, and other relevant tools to ensure the health and performance of AWS resources.
• Implement security measures and best practices for AWS resources, ensuring a secure and compliant infrastructure.
• Collaborate with development, operations, and security teams to understand requirements and implement effective cloud solutions.
• Develop and maintain disaster recovery plans and ensure the resilience of cloud-based systems.
• Identify and address performance bottlenecks, optimize AWS resources, and implement best practices for efficiency.
• Create and maintain technical documentation for AWS infrastructure, deployment processes, and best practices.
• Provide guidance and mentorship to junior DevOps engineers and team members, fostering a culture of continuous learning and improvement.

• 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.

• 5+ years of proven experience as a DevOps Engineer with a strong focus on Azure.
• In-depth knowledge of Azure services and architecture, including Azure VMs, Azure App Service, Azure Functions, and more.
• Proficiency in scripting languages (e.g., PowerShell, Bash) and automation tools.
• Experience with containerization and orchestration tools (Docker, Kubernetes, AKS).
• Familiarity with Infrastructure as Code (IaC) principles and tools (ARM templates, Terraform).
• Experience with version control systems (e.g., Git) and agile development methodologies.
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork skills.

• Azure certifications (e.g., Azure DevOps Engineer Expert) are a plus.

• Design, implement, and manage scalable and highly available cloud infrastructure on Microsoft Azure.
• Develop and maintain automation scripts using tools such as Azure Resource Manager (ARM) templates, Terraform, and scripting languages (e.g., PowerShell, Bash) to automate infrastructure provisioning and configuration.
• Establish and optimize CI/CD pipelines using Azure DevOps, GitHub Actions, and other relevant tools to automate software deployment.
• Implement and manage containerized applications using Azure Kubernetes Service (AKS) and orchestrate containers using Docker and Kubernetes.
• Implement Infrastructure as Code principles to define and manage infrastructure resources.
• Set up monitoring and logging solutions using Azure Monitor, Azure Log Analytics, and other relevant tools to ensure the health and performance of Azure resources.
• Implement security measures and best practices for Azure resources, ensuring a secure and compliant infrastructure.
• Collaborate with development, operations, and security teams to understand requirements and implement effective cloud solutions.
• Develop and maintain disaster recovery plans and ensure the resilience of Azure-based systems.
• Identify and address performance bottlenecks, optimize Azure resources, and implement best practices for efficiency.
• Create and maintain technical documentation for Azure infrastructure, deployment processes, and best practices.
• Provide guidance and mentorship to junior DevOps engineers and team members, fostering a culture of continuous learning and improvement.

• 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:

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.

About the Role

You’ll be at the ground floor of scaling Tensor for the next 1 million traders and building the most sophisticated trading infrastructure & platform for NFTs in the world.

You will:

• Ship new products for NFT traders: faster data, more capital efficiency, advanced order types
• Optimize and scale our data pipelines to handle O(1-10K) transactions/second at peak
• Own projects end-to-end: from front-end to backend APIs to data pipelines

You are:

• Excited about web3/crypto/NFTs. We really cannot overstate this - you’ll be joining a team of web3 nerds
• A generalist with 3+ years of experience working on large-scale, data-intensive apps
• Experienced with React, NodeJS, Postgres, Redis, ElasticSearch and/or Docker (if you have experience with other modern stacks that’s totally fine too, as long as you’re a fast learner!)
• Proficient in at least one low-level language (ideally Rust or Go)

Bonus points for:

• Experience scaling data-rich consumer products, APIs & trading infrastructure to millions of users and O(terabytes) data
• Experience building real-time pipelines on AWS (Kafka, Dynamo, SQS, RDS) and services on Kubernetes
• Experience optimizing React apps to handle hundreds of renders per minute
• Strong fundamentals in statistics, math, or quantitative finance
• Good intuition on when to move fast/break things vs when to move carefully

What you’ll get:

• Generous ownership & stake in the company. We’re looking for owners 🤝
• A fast-paced, no-BS environment
• Flexible working hours & hybrid schedule
• Top-of-the-line M3 Macbook Pro and peripherals

Our stack is Rust (protocol) / TypeScript (back-end & front-end), React/NextJS, AWS, Kubernetes and a bunch of distributed data systems (Kafka, RDS/Postgres, ElasticSearch).

Location

We’re remote-first. The founding team is in Toronto, and you’re welcome to join us there, but you don’t have to.

Apply Now:

• Design, develop, and maintain complex web applications using Node.js, Express.js, Nest.js, and React.js, ensuring scalability, performance, and reliability.
• Architect and implement RESTful APIs, microservices, and serverless functions to support application functionality and integrations.
• Utilize advanced MongoDB concepts, including aggregation pipelines, transactions, and schema design, to optimize database performance and scalability.
• Collaborate with front-end developers to integrate React.js components and create seamless user interfaces that enhance user experience.
• Implement DevOps best practices to automate build, deployment, and monitoring processes, leveraging tools such as Docker, Kubernetes, and Jenkins.
• Configure and manage infrastructure on the Google Cloud Platform, including compute instances, networking, storage, and security features.
• Utilize GCP services such as BigQuery for data analytics and insights, optimizing queries and data pipelines for performance and cost efficiency.
• Monitor application performance, identify and troubleshoot issues, and implement optimizations to ensure high availability and reliability.
• Provide technical guidance and mentorship to junior developers, conduct code reviews, and ensure adherence to best practices and coding standards.
• Stay abreast of emerging technologies, industry trends, and best practices in JavaScript development, DevOps, and cloud computing, and share knowledge with the team.
• Write standard user stories and epics required for development, ensuring clear communication and alignment across teams.
• Stay abreast of emerging technologies, industry trends, and best practices in JavaScript development, DevOps, cloud computing, and product management, sharing knowledge with the team.

• Bachelor's degree in Computer science, Engineering, or related field, or equivalent work experience.
• 5+ years of experience as a JavaScript developer, with strong proficiency in Node.js, Express.js, Nest.js, and React.js.
• Extensive experience with MongoDB, including advanced concepts such as aggregation pipelines, transactions, and schema design.
• Solid understanding of DevOps practices and tools, with hands-on experience in CI/CD pipelines, containerization, and infrastructure as code.
• Experience with cloud platforms, preferably Google Cloud Platform (GCP), including compute, storage, networking, and security services.
• Familiarity with GCP services like BigQuery for data analytics and insights.
• Strong problem-solving skills, with the ability to analyse complex issues, troubleshoot problems, and implement effective solutions.
• Excellent communication and collaboration skills, with the ability to work effectively in a cross-functional team environment.
• Passion for learning and staying updated on emerging technologies, tools, and best practices in JavaScript development, DevOps, and cloud computing.
• Strong problem-solving skills, with the ability to analyze complex issues, troubleshoot problems, and implement effective solutions.
• Excellent communication and collaboration skills, with the ability to work effectively in a cross-functional team environment.
• Passion for learning and staying updated on emerging technologies, tools, and best practices in JavaScript development, DevOps, cloud computing, and product management.

• Work that fits your personality and lifestyle.
• Your hours are flexible, and so is your vacation.
• Any equipment/software/tech that you need to do your job.
• You can work from anywhere in the world - We work remotely!

Address:

• US/Vietnam (can be remote)

Intro

SotaTek (State-of-the-Art-Technology) offers leading tech experts with strong determination, enthusiasm and commitment in providing the most hi-tech IT services, with the ultimate goal to enable your business success through digital transformation. We deliver sustainable Software Development, including Web/App, Blockchain, AI & Machine Learning, ERP with cost-effective solutions.

During 8+ years of development, we have gathered over 1000 talented IT consultants and developers who share deep expertise to successfully provided full-cycle IT services to our Clients from 25+ nations worldwide, with 500+ projects in various industries, such as Finance, Health Care, Retail, Real Estate, Education, Media & Entertainment.

Our HQ is located in Hanoi, Vietnam, with representative offices in the US, Japan and Australia. We serve clients mainly from the US & NA, EU, UK, ANZ, and Asia.

Our vision is to become a pioneer in leveraging state-of-the-art technology for business growth and development

Our mission is to provide exceptional IT services that consistently exceed customer expectations and empowering digital transformation.

SotaTek remains steadfast in our mission to preserve and nurture our core values, continuously commit to leverage customer assurance and satisfaction: Innovation, Reliable, Agile & T-shaped.

Company size: 500 - 1000

Website: http://sotatek.com

Company Fanpage: https://www.facebook.com/sotatek

Recruitment Fanpage: https://www.facebook.com/SotaTek-Recruitment-103449144861080

Job vacancy: Blockchain Software Developer

Job Description

• Collaborate with developers, product teams, and other stakeholders to design and implement blockchain-based financial solutions.
• Develop and maintain blockchain protocols, smart contracts, and consensus algorithms.
• Ensure the security, integrity, and scalability of blockchain solutions.
• Stay updated with emerging trends and technologies in blockchain and cryptocurrency.
• Provide technical leadership and guidance in blockchain-related matters.
• Troubleshoot and resolve issues in blockchain applications and systems.
• Document blockchain development processes and best practices.

Compensation & Benefits: Benefits can be discussed in detail during the interview

Requirements:

Must have

• Bachelor’s degree in computer science or directly related field.
• 7+ years of relevant technical experience in software development roles.
• Strong understanding of blockchain technologies, distributed ledger, and smart contracts.
• Proficiency in programming languages such as Solidity, Daml, JavaScript, Rust, NodeJS, Go, or Python.
• Proven Experience with blockchain platforms like Ethereum, Hyperledger, or similar.
• Knowledge of cryptography and blockchain protocols.
• Familiarity with P2P networks and consensus algorithms.
• Experience with AWS or Azure cloud services and Kubernetes, Docker, NIX
• Excellent problem-solving skills and ability to think analytically.
• Strong communication and collaboration skills.

Nice to have

• Previous work on significant blockchain projects or contributions to open-source blockchain initiatives.
• Knowledge of financial services, payments, or cryptocurrency industries.

----------------

Free to contact me via:

Telegram: @vananhvu310

Skype: vuthivananh310

Email: email

Apply Now:

About The Role:

The Software Engineering team at Shardeum is responsible for delivering the Shardeum Mainnet, and developing the smart contract platform, the consensus layer and the protocol layer. We focus on building scalable, performant, secure and reliable software that can be downloaded by thousands of node operators to actualize the Shardeum network.

We are in search of highly talented, innovative Principal Blockchain Engineer to join our team. If you enjoy solving complex computer science problems, are passionate about what you work on, are a perfectionist who wants to build things the right way, and are persistent about finishing what you started, then you're the kind of person we are looking for. You will be working with equally talented and innovative individuals with the goal of building incredible software with the potential to change the world.

What You'll Be Doing:

• Provide technical structure to teams and work closely with management and stakeholders to define strategic roadmaps
• Manage individual projects priorities, deadlines and deliverables with your technical expertise
• Mentor and train other team members on design techniques and coding standards
• Contributing to the architecture and implementation of complex software components in Node.js
• End-to-end ownership of critical software components
• Designing and developing innovative new consensus and protocol software
• Ensuring performance optimization, and making scalability / reliability improvements to the software
• Testing, reviewing and suggesting improvements to the software
• Resolving issues, debugging errors and fixing code to improve the reliability and security of the software
• The tech stack you will be using is: Node.js, TypeScript, SQLite, Postgres, React and Vue.js
• The development environment will be: Linux, Git, AWS, Docker and VSCode

What We're Looking For:

• You know what high quality code look like and know how to foster an environment that creates it
• Fluency with algorithms and data structures
• Ability to quickly learn new languages and technologies
• Ability to write clean yet efficient code
• The Creativity to come up with proof of concept from high level design, while not knowing all the details
• Self motivated to set priorities and methodically make progress towards the goals
• The ability to communicate effectively and convey your ideas when discussing technical topics with team members
• Bachelor's Degree in Computer Science or a related field

We'd Love If You Have:

• Experience with concurrency, parallelism and distributed systems
• Familiarity with the Shardeum / Shardus open source repos
• Experience with consensus protocols and other blockchains
• Experience with Node.js and TypeScript, or languages like C, C++, Rust or Go
• Experience writing a smart contract on a blockchain
• Experience running a node in a blockchain network
• Knowledge of cryptography
• Experience with networks and operating systems
• Contributed to open source projects
• Written articles or created videos on technical topics, especially related to blockchain
• Read the Bitcoin and Ethereum whitepapers

Apply Now:

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!

Apply Now:

Title: Core Trading Architecture Software Developer

Location: London, Malaga or Singapore

About us:

Founded in 2013, GSR is a leading market-making and programmatic trading company in the exciting and fast-evolving world of cryptocurrency trading. With more than 200 employees in 5 countries, we provide billions of dollars of liquidity to cryptocurrency protocols and exchanges on a daily basis. We build long-term relationships with cryptocurrency communities and traditional investors by offering exceptional service, expertise and trading capabilities tailored to their specific needs.

GSR works with token issuers, traders, investors, miners, and more than 30 cryptocurrency exchanges around the world. In volatile markets we are a trusted partner to crypto native builders and to those exploring the industry for the first time.

Our team of veteran finance and technology executives from Goldman Sachs, Two Sigma, and Citadel, among others, has developed one of the world’s most robust trading platforms designed to navigate issues unique to the digital asset markets. We have continuously improved our technology throughout our history, allowing for our clients to scale and execute their strategies with the highest level of efficiency.

Working at GSR is an opportunity to be deeply embedded in every major sector of the cryptocurrency ecosystem.

About the role:

At GSR, we're seeking a talented Software Developer with expertise in low-latency trading systems to join our dynamic proprietary trading team. We're on the lookout for a passionate individual who possesses strong programming skills and an in-depth understanding of financial markets. As a primary programming language, we are looking for proficiency in Rust, and we highly value candidates with similar experience in Java and C++.

Your responsibilities may include:

• Design, Develop, and Optimize: Craft high-performance, low-latency trading systems using Rust (also Java and C++), ensuring they remain at the forefront of the industry.
• Collaborate and Innovate: Work closely with our team of quantitative analysts and researchers to comprehend business requirements and develop innovative technical solutions.
• Code Excellence: Write well-structured, maintainable, and efficient code meticulously optimized for low latency, high throughput, and seamless scalability.
• Infrastructure Mastery: Build and maintain robust trading infrastructure capable of seamlessly handling large volumes of data and transactions.
• Teamwork: Collaborate with fellow developers, DevOps engineers, and IT support teams to guarantee the flawless operation of our trading systems.

Your Qualifications/Attributes will include:

• Programming Proficiency: Strong expertise in Rust (Java / C++), including multithreading, concurrency, and networking.
• Coding Skills: Proven experience with flyweight-based codecs like SBE (Simple Binary Encoding).
• Inter-process Communication: Hands-on experience with IPC (Inter-process Communication) over shared memory.
• Networking: Familiarity with TCP and UDP (unicast and multicast).
• Protocols: In-depth knowledge of WebSocket, HTTP, and FIX protocols.
• Optimization: Demonstrated ability to write garbage collection-free / zero copy code.
• Market Understanding: Familiarity with financial markets and trading systems.
• Problem Solving: Strong problem-solving and analytical skills.
• Team Player: Excellent communication and teamwork skills.

Nice to have:

• Containerization and Orchestration: Knowledge of Docker and Kubernetes for containerization and orchestration of trading applications.
• Cloud and Distributed Systems: Experience with cloud computing and distributed systems.
• Data Expertise: Familiarity with time-series databases and big data technologies.

What we offer:

• A collaborative and transparent company culture founded on Integrity, Innovation and Performance.
• Competitive Salary with two discretionary bonus payments a year.
• Benefits such as Healthcare, Dental, Vision, Retirement Planning, 30 days holiday and free lunches when in the office.
• Regular Town Halls, team lunches and drinks.
• A Corporate and Social Responsibility program as well as charity fundraising matching and volunteer days.

GSR is proudly an Equal Employment Opportunity employer. We do not discriminate based upon any applicable legally protected characteristics such as race, religion, colour, country of origin, sexual orientation, gender, gender identity, gender expression or age. We operate a meritocracy, all aspects of people engagement from the decision to hire or promote as well as our performance management process will be based on the business needs and individual merit, competence in the role. Learn more about us at www.gsr.io.

Apply Now:

Mission Statement

The additional yield that MEV provides has become a core part of staking returns, and the MEV-Boost architecture operates close to the core of the Ethereum protocol. The Aestus MEV relay was established by members of the Ethereum solo-staker community with one core mission: to improve economic decentralisation on Ethereum.

Aestus has been live on mainnet for 18 months and we are responsible for auctioning ~5% of Ethereum mainnet blocks. We’ve recently attracted community funding that provides us the opportunity to grow our team.

This is a competitive and dynamic environment where milliseconds matter. We are looking for a DevOps engineer whose primary responsibility will be to optimise our architecture with performance in mind. New ecosystem developments such as shared sequencing, and re-staking also present us with new opportunities - which you will have an essential role in exploring.

Summary of the Role

• You’ll be working in a small, friendly 3-4 person team with an opportunity to make your mark.
• Experiment with new technologies and make data-driven improvements to the performance, observability, and stability of our platform.
• Architect, configure and deploy global infrastructure on leading cloud platforms.
• Take responsibility for incidents and become a part of the on-call team.
• Engage in community discussions and contribute to the evolution of this ecosystem.

Qualifications

• A hacker mentality with substantial self-driven experience of linux sys admin, git, docker and k8s.
• Familiarity with common database technologies and networking protocols.
• Fluency in any of golang, python or rust.
• An understanding of the Ethereum staking and MEV ecosystem.
• A willing to get involved in novel technical challenges beyond a strict DevOps remit.

Benefits

• Remuneration dependent on skills and experience.
• Work from anywhere on a contract basis with flexible hours.
• Paid travel + expenses to Ethereum conferences and team meetups.

• You write clean and organized backend RoR API code
• You cover your code with decent test-coverage
• You are part of the decision making process regarding software architecture and engineering processes
• You align with different stakeholders as you work together closely with your team-members, QA and the customer

• 3+ years of experience in developing Ruby on Rails including test automation
• You are familiar with GIT, Postgres and Docker
• You are interested in other tech stacks, and are not afraid to learn new things. Our team maintains embedded components in Golang and QT, and Android in the near future.
• Good communication skills and proficiency in English
• Hands-on mentality – you are enjoying development, refactoring, debugging, testing, and exploration
• High quality awareness and very accurate and structured method
• Experience in fintech and automotive industries is an advantage

• Our values 💛 We believe in personal responsibility, flexibility, and trust.
• Our team 🦸‍♂️ We're international, diverse, and operate with flat hierarchies.
• Our projects 🚀 They're inspiring, innovative, and growth-oriented.
• 100% remote 🌐 Work from wherever you feel most productive and happy.

• 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.

• 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.

• 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).

• 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.

• 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

• Experience implementing real-time (e.g. websockets, polling, etc.) web apps
• Experience working with GraphQL endpoints
• An eye for design and experience with Figma, Sketch, Abstract, Photoshop, or similar
• Led small project teams building and launching features
• Contributed open source code (core or plugins) for a popular frontend framework such as React, Vue, or Angular
• Built B2B SaaS products
• Experience with sales or sales tools

• Conceiving, designing, building, and launching new user-facing features
• Working with Twilio's API, WebSockets, and WebRTC to improve our calling features
• Building user-facing analytics features that provide actionable insights based on sales activity data
• Improving real-time collaboration user experience
• Expanding our frontend GraphQL usage
• Extending our React component library

• Culture video 💚
• 100% remote company (we believe in trust and autonomy)
• Choose between working 5 days/wk (standard full-time) or 4 days/wk @ 80% pay
• Annual team retreats ✈️
• Quarterly virtual summits
• 5 weeks PTO + Winter Holiday Break
• 2 additional PTO days every year with the company
• 1 month paid sabbatical every 5 years
• Paid parental leave
• Medical, Dental, Vision with HSA option (US residents)
• 401k matching at 6% (US residents)
• Dependent care FSA (US residents)
• Contributor to Stripe's climate initiative 🌍❤️ 
• Our story and team 🚀

• Build a house you want to live in -- Examine long-term thinking and action
• No BS - Practice transparency and honesty, especially when it’s hard
• Invest in each other -- Build successful relationships with your coworkers and customers 
• Discipline equals freedom -- Keep your word to yourself and others
• Strive for greatness -- Constantly challenge yourself and others 

• Productivity, Quality & Impact: We don’t track hours. We trust you’re an adult and know best how to prioritize, meet your goals and contribute at a high level. 
• Asynchronous communication & collaboration: We have team members all over the world. We don’t expect anyone to work untraditional hours, that means our default is async. Most teams have 2-5 hours of internal meetings weekly. 
• Appreciation for Deep Work: *During your normal work day, not after a day a meetings*. 
• Autonomy & Freedom: Create a work environment that is sustainable for you. We place a high amount of trust and responsibility with our team members from the start. 

1. Remote work with flexible schedules
2. A privately owned, low-stress culture
3. A fun "no bullshit" work environment

1. Docker
2. Kubernetes
3. GCP
4. AWS
5. Go
6. Postgres
7. Redis
8. Familiarity with JavaScript
9. Excellent communication skills (English)
10. Degree in Computer Science or equivalent practical experience

1. Build CI and CD pipelines
2. Optimize and scale workloads
3. Secure containers and web services

1. Salary: $135k+ based on experience
2. $20,000 signing bonus
3. 4 weeks vacation + holidays based on your country of residence

Apply Now:

• Expert with NestJS framework (3+years experience)
• Expert with NODEJS (5+years experience)
• Expert MySQL / MongoDB (3+years experience)
• Strong Experience developing within ReactJs (2+years experience)
• Experience developing Frontend with Bootstrap/Material (1+years experience).
• Experience with REST APIs
• Use of Docker in local and production environments
• Adoption of Agile methodologies
• Experience with techniques such as TDD, continuous integration and continuous delivery
• Experience with test automation using JEST/ Mocha,  Jenkins, Selenium or other testing frameworks would be advantageous
• RabbitMQ, Redis, AWS or Elastisearch is a plus
• Be willing to help your teammates, share your knowledge with them, and learn from them.
• Be open to receiving feedback.
• Be conscientious and have a good work ethic

• Expert with Symfony framework (3+years experience)
• Expert PHP5, PHP7 (5+years experience)
• Strong Experience developing within ReactJS (2+years experience)
• Expert MySQL / Doctrine 2 (3+years experience)
• Experience Developing Frontend with Bootstrap/Material (1+years experience).
• Very strong Object Oriented Programming skills
• Experience with REST APIs
• Use of Docker in local and production environments
• Adoption of Agile methodologies
• Experience with techniques such as TDD, continuous integration and continuous delivery
• Experience with test automation using Behat, Jenkins, Selenium or other testing frameworks would be advantageous
• RabbitMQ, Redis, AWS or Elastisearch is a plus
• Be willing to help your teammates, share your knowledge with them, and learn from them.
• Be open to receiving feedback.
• Be conscientious and have a good work ethic.

Responsibilities

• Be part of a devops team, dedicated to building internal platforms.
• Work closely with internal teams to improve the system reliability, scalability and security.
• Engage in and improve the infrastructure quality supporting the platform.
• Build and manage systems, infrastructure and applications through automation.
• Provide operational support to internal teams working on the platform.
• Work on improvements to bring in high efficiency, reduce latency, deploy systems faster.
• Practice sustainable incident response and blameless postmortems.
• Together with your engineering team, you will share an on-call rotation and be an escalation contact for service incidents.

Minimum Qualification

• Bachelors with 5+ years of working experience as Site Reliability Engineering (SRE) / Devops Engineer
• Experience with programming in at least one of the following languages: C, C++, Java, Python, or Go.
• Knowledge of Linux internals and bash scripting.
• Strong skills around observability, debugging and performance tuning, willing to dive into understanding, debugging, and improving any layer of the stack.
• Strong experience in managing infrastructure with providers like AWS.
• Strong experience in Cloud Native technologies in kubernetes, docker etc.
• Basic knowledge of RDBMS systems like mysql.
• Understanding of networking protocols such as TCP/IP.

Preferred Qualification

• Expertise in automation tools like Ansible, Terraform.
• Expertise in devops tooling like Jenkins, ArgoCD, github actions
• Expertise in advanced observability (USE-RED signals, Tracing, front end observability etc) and monitoring stacks, preferably Grafana stack.
• Expertise in designing, analyzing, and troubleshooting large-scale distributed systems.
• Systematic problem-solving approach, coupled with effective communication skills and a sense of drive.
• Extensive experience in supporting production systems as SRE.
• Experience in setting up monitoring stack for process and docker based environments.

Apply Now: