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re.al
Remote
At re.al, we are pioneering the development of a Layer 2 blockchain ecosystem focused on real-world assets. Our mission is to leverage blockchain technology to transform how assets are managed and traded, creating a more open and efficient financial system. With a passionate, innovative and dedicated team we have built a permissionless Ethereum Layer 2 chain poised to revolutionize asset management.
We are seeking an experienced Blockchain/crypto Backend Developer to join our dynamic team. This role is crucial in continuing to uphold and continue building out any backend systems that support our L2. You will work on architecting and developing scalable backend services that push the limits of current technology, enabling seamless and high-performance applications.
Responsibilities:
- Design and develop backend services and infrastructure for our Layer 2 blockchain solutions using NodeJS.
- Collaborate with cross-functional teams including engineers, product managers, and designers to deliver robust blockchain applications.
- Ensure the security of our platform by implementing industry best practices and conducting thorough audits.
- Improve existing systems for high availability, reliability, and performance.
- Write high-quality, well-tested code, ensuring the maintainability and scalability of our services.
- Stay abreast of the latest trends and developments in blockchain technology and contribute to strategic discussions.
- 5+ years of experience in software engineering, with a focus on backend systems.
- Proven track record in designing, building, and maintaining production-grade systems with a service-oriented architecture and with high scalability.
- Experience with systems programming; expertise in NodeJS is a must.
- Proficiency in building and executing services within AWS or similar cloud environments.
- Strong understanding of Solidity and the Ethereum ecosystem.
- Good at designing databases, both SQL and NoSQL based on requirements and for big ecosystems.
- Ability to design high availability systems with fast data processing.
- Passion for blockchain technology and its potential to transform the financial landscape.
Nice to Have:
- Experience decomposing a large system into microservices.
- Familiarity with tools and technologies like Docker, Golang, Postgres.
- Background in developing financial, high-reliability, or security systems.
- Previous experience in a fast-growing startup environment.
Compensation:
- Competitive base salary with options for stablecoin (USDC) payments.
- Discretionary bonuses and/or benefits.
Culture and Values:
At re.al, we foster an energetic and collaborative environment where everyone's ideas are valued. Our team comprises seasoned professionals passionate about blockchain's potential to make a significant impact. We operate in a remote, decentralized, fast-paced and dynamic setting to ensure that we stay ahead of market trends by strategically deploying resources. If you thrive on innovation and are eager to grow in the blockchain industry, re.al may be the perfect fit for you.
Apply Now:
Responsibilities
- Develop, maintain, and deploy blockchain code in test and production environments
- Develop, deploy, and test smart contracts
- Test and debug web3 applications
- Write unit tests, integration tests, end-to-end tests, and simulation tests for the blockchain code
- Automate build and release process through GitHub Actions
- Research improvements to the consensus and state management stack
- Produce technical documentation on the blockchain
Qualifications
- 5+ years of software engineering experience
- Experience with the Cosmos SDK and/or the Cosmos ecosystem
- Proficiency in Golang
- Core understanding of data structures and algorithms
- Experience with binary serialization and deserialization (Protobufs)
Preferred experience (any)
- Proficiency with Rust and/or Solidity
- Experience with CosmWasm and/or EVM smart contracts
- Coursework or advanced degree in distributed systems or database systems
- Coursework in cryptography
- Specifically public key cryptography and elliptic curve cryptography
- Experience with Docker containers and Kubernetes
- Experience distributed systems (e.g. consensus protocols and p2p networking)
- Experience with database engines (LSM trees)
Apply Now:
Wallet in Telegram is your gateway to the world of digital currencies, specially tailored for individuals in emerging markets. We understand the complexities and intimidation often associated with existing crypto solutions, which is why we've designed the Wallet to be the ultimate user-friendly platform for managing finances. No need to open a traditional bank account or wrestle with convoluted crypto exchanges and wallets.
Leveraging the power of advanced blockchain technology, Wallet delivers a seamless onboarding experience into the crypto ecosystem. It enables users to effortlessly store, send, and receive digital currencies, all via the familiar interface of Telegram. Managing your finances becomes as simple as sending a message.
At Wallet, we're committed to using technology to disrupt traditional banking systems, providing our customers with more flexible and inclusive financial services. Whether you're a crypto novice or seeking to simplify your digital finance experience, Wallet is crafted with your needs in mind.
We are looking for a Software Engineer (Platform) to join our team and help build and support high-load systems. Your main responsibility will be to create scalable and fault-tolerant solutions that ensure the platform's stability under heavy loads.
Responsibilities:
- Develop and maintain high-load platform solutions.
- Ensure the scalability and fault tolerance of services.
- Optimize system performance to handle large amounts of data and users.
- Collaborate with cross-functional teams to deliver the best platform engineering solutions.
- Integrate with monitoring and alerting systems for timely detection and resolution of issues.
- Participate in the design and implementation of new features.
Requirements:
- 5+ years of experience as a Software Engineer.
- Understanding of distributed systems principles.
- Proficiency in one or more programming languages (Go, Java, C++) and desire to write on Python or Kotlin.
- Solid understanding of databases (SQL, NoSQL), query optimization, and handling large datasets.
- Experience with monitoring, logging and distributed tracing tools.
Nice to Have:
- Experience with microservices architecture.
- Experience with containerization and orchestration tools (Kubernetes, Docker).
- Familiarity with DevOps practices and experience implementing them.
Why it is a fantastic opportunity:
- Our business is growing at an exponential scale.
- Work in a well-funded startup environment with unique growth opportunities and a chance to join a rapidly growing company with a unique product.
- Be based remotely.
- Participation in the performance review and bonus programme.
- Compensation for medical expenses.
- Provision of necessary equipment.
- Annual vacation of 20 working days plus 10 paid days off.
- 14 days of paid sick leave to support your health and recovery when needed.
- Access to internal English courses for continuous learning and improvement in language skills.
Apply Now:
At Coinbase, our mission is to increase economic freedom around the world, and we couldn’t do this without hiring the best people. We’re a group of hard-working overachievers who are deeply focused on building the future of finance and Web3 for our users across the globe, whether they’re trading, storing, staking or using crypto. Know those people who always lead the group project? That’s us.
There are a few things we look for across all hires we make at Coinbase, regardless of role or team. First, we look for candidates who will thrive in a culture like ours, where we default to trust, embrace feedback, and disrupt ourselves. Second, we expect all employees to commit to our mission-focused approach to our work. Most importantly, we seek people who are excited about crypto, because those are the folks who enjoy the intense moments in our sprint and recharge work culture. We’re a remote-first company looking to hire the absolute best talent all over the world.
Who you are:
- You’ve got positive energy. You’re optimistic about the future and determined to get there.
- You’re never tired of learning. You want to be a pro in bleeding edge tech like DeFi, NFTs, DAOs, and Web 3.0.
- You appreciate direct communication. You’re both an active communicator and an eager listener - because let’s face it, you can’t have one without the other. You’re cool with candid feedback and see every setback as an opportunity to grow.
- You can pivot on the fly. Crypto is constantly evolving, so our priorities do, too. What you worked on last month may not be what you work on today, and that excites you. You’re not looking for a boring job.
- You have a “can do” attitude. Our teams create high-quality work on quick timelines. Owning a problem doesn’t scare you, but rather empowers you to take 100% responsibility for achieving our mission.
- You want to be part of a winning team. We’re stronger together, and you’re a person who embraces being pushed out of your comfort zone.
Coinbase Infrastructure Security is seeking a leader to build systems and integrations that support the prevention, identification, tracking, reporting, and remediation of vulnerabilities. As the engineering manager of Developer Security (DevSec), you will lead a team of software engineers who partner with program owners, technical subject matter experts, and cross-functional partners to deliver services and security controls that ensure the safety of Coinbase software and infrastructure. We deliver a delightful experience to Coinbase developers by prioritizing safe defaults, automated detection and remediation, and highly relevant and contextual findings. Your impact is quantified through measurable risk reduction that minimizes unnecessary friction and toil.
What you’ll be doing:
- Build and operate services and system integrations that scan, track, and report vulnerabilities to Coinbase developers.
- Partner with engineering leaders on cross-functional initiatives to improve the safety of Coinbase infrastructure and development platforms.
- Coach your direct reports to have a positive impact on the organization and chart a fulfilling career path. Set clear targets and objectives, and establish KPIs for the team
- Collaborate with engineers, managers, and program managers to turn our vision into a tangible roadmap every quarter
- Be a thoughtful technical voice and support your team in making diligent architectural and operational decisions
- Work with our talent organization to source and hire amazing engineers who will expand the Coinbase culture and product
What we look for in you:
- At least 7 years of experience in software engineering.
- At least 2 years of experience in security engineering, security architecture, or application security.
- At least 2 years of engineering management experience.
- You possess a strong understanding of what constitutes high-quality code and effective software engineering processes, creating an environment that fosters these principles.
- An execution-focused mindset, capable of navigating through ambiguity and delivering results.
- An ability to balance long-term strategic thinking with short-term planning.
- Experience in creating, delivering, and operating distributed systems at scale.
- You can be hands-on when needed – whether that’s writing/reviewing code or technical documents, participating in on-call rotations and leading incidents, or triaging/troubleshooting bugs.
- Your passion for building an open financial system that brings the world together drives you to excel in this role.
Nice to haves:
- You have designed, built, scaled and maintained production services and integrations for vulnerability risk reduction, including scanners, issue management platforms, and/or secure CI/CD infrastructure.
- You have worked with Golang, Docker, and AWS or GCP.
P60006
Commitment to Equal Opportunity
Coinbase is committed to diversity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.
Coinbase is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).
Global Data Privacy Notice for Job Candidates and Applicants
Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.
Apply Now:
Job Description:
We are looking for a highly skilled MERN Stack Backend Developer to join our team. The ideal candidate will have in-depth knowledge of MongoDB, Express.js, Node.js, and RESTful APIs, with hands-on experience in building, optimizing, and scaling backend services for modern mobile and web applications.
As a key member of our team, you will be responsible for developing high-performance backend services, integrating with third-party systems, and ensuring security and data integrity across our applications.
Key Responsibilities:
- Design, develop, and maintain scalable backend systems using Node.js and Express.js.
- Implement and optimize MongoDB schemas and queries to ensure high performance and scalability.
- Develop and maintain RESTful APIs to support the frontend and mobile apps.
- Integrate external APIs and third-party services into the backend infrastructure.
- Write reusable, testable, and efficient code with a focus on performance and scalability.
- Collaborate with frontend developers and product teams to ensure seamless integration.
- Ensure the security and privacy of the application’s data and backend infrastructure.
- Implement automated testing and continuous integration pipelines for backend services.
- Monitor and troubleshoot production issues, optimizing performance as necessary.
Required Skills and Qualifications:
- Strong proficiency in Node.js and Express.js.
- Experience with MongoDB and creating efficient database schemas and queries.
- Familiarity with RESTful APIs, and working with third-party services and integrations.
- Understanding of the entire web development process (design, development, deployment).
- Experience with version control tools like Git.
- Knowledge of API security practices, including OAuth and JWT.
- Proficient understanding of code versioning tools, such as Git.
- Experience with Agile methodologies and development tools (JIRA, Trello, etc.).
- Strong problem-solving skills and ability to work independently.
Nice to Have:
- Experience with cloud platforms such as AWS
- Knowledge of containerization technologies (Docker, Kubernetes).
- Knowledge of blockchain development (specifically Solana).
- Familiarity with frontend technologies, especially React.js and React Native
Why Join Us?
- Opportunity to work with a dynamic and innovative team.
- Flexible working hours and the option to work remotely.
- Career growth opportunities in a rapidly expanding company.
- Competitive salary and benefits.
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 individuals 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:
- Collaborating with a fully distributed team around the world
- 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:
- 7+ Years of Software Engineering Experience
- 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 is desired
We'd Love If You Have:
- Experience with concurrency, parallelism and distributed systems
- Familiarity with the Shardeumopen 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
- Read the Bitcoin and Ethereum whitepapers
Apply Now:
Gelato Network
Remote
Gelato is an all-in-one Ethereum Rollup as a Service Platform built without limits. Designed to be super-fast, incredibly secure, and infinitely scalable, Gelato rollups allow anyone to build and deploy their fully serviced Layer 2 chains on Arbitrum, Optimism, Polygon, Celestia and more at a pace natively integrated with Web3’s favorite tools and services like Etherscan, The Graph, Pyth, Layer Zero and many more launching a production-ready web3 development environment from the Genesis block.
What we offer:
- Join one of the most technically robust teams in the crypto space, operating in a fully remote environment with our headquarters located in the crypto hub of Zug, Switzerland.
- Play a pivotal role in shaping the future of blockchain, by contributing to the development of Gelato’s Rollup-As-A-Service Platform, already trusted by leading projects like Lisk and Astar Network.
- Dive deep into cutting-edge Web3 technologies with exposure to Gelato’s premier Middleware Services stack, including Gelato Web3 Functions and Gelato Relay, foundational to top-tier applications such as MakerDAO, Connext, Abracadabra, and Pancakeswap.
- Earn and have a say with the GEL Token package, granting you a stake in the network’s future and a voice in the strategic direction of the project.
- Be backed by the best, with support from world-class investors including Dragonfly, IOSG, Galaxy Digital, ParaFi, Gnosis, and renowned figures like Stani Kulechov among others, securing your position at the forefront of the Web3 revolution.
Responsibilities:
- Master diverse Ethereum Rollup technologies including Arbitrum, Optimism, Polygon, zkSync, and more, preparing for deployment, operation, debugging, and enhancement activities.
- Architect a high-impact decentralized network, focusing on scalability to manage a sequencer and RPC node infrastructure that processes millions of transactions and handles billions of RPC requests daily.
- Deepen your expertise in Zero Knowledge proofs, embracing the challenge of working with ZK-EVM stacks and pushing the boundaries of privacy and scalability in blockchain.
- Embrace full ownership of your code with a proactive approach to DevOps, ensuring robust deployment and real-time monitoring in collaboration with our Infrastructure team.
- Innovate within Rollup ecosystems, designing and implementing groundbreaking features like Decentralized Sequencing, Eigenlayer restaking, peer-to-peer messaging, threshold signatures, and trust-minimized off-chain computation.
- Enhance network security and resilience, creatively identifying potential attack vectors and failure points, establishing reproducible testing environments, and crafting strategic fixes.
- Develop and refine recovery protocols for our core node software, ensuring system robustness and rapid response to unforeseen events.
- Build and maintain distributed systems designed for exceptional reliability across diverse blockchain environments, setting new standards for uptime and performance.
Requirements
- You can work with high autonomy from research, spec, implementation, deployment, monitoring and patching your code
- Strong written and verbal English communication skills
- You are comfortable with both DevOps and Software Engineering
- You have extensive experience in shipping production-grade code that handles thousands of user interactions or transactions
- Extensive knowledge about the inner workings of the Ethereum client architecture
- Have a deep understanding of the EVM and how external tooling integrates with it
- 5 years experience with Golang/Rust/C++
- 2 years experience with DevOps - Terraform, Ansible, GCP/AWS, Docker, Kubernetes
- 1 year experience with Solidity
- Strong experience with high throughput database systems
- Strong experience with maintaining scalable microservices systems
- Strong experience with distributed systems and/or container orchestration
- Strong interest in Web3/crypto industry
- Experience using crypto applications (e.g. Uniswap, Aave, etc.)
Not essential, but big bonus points:
- Knowledge of the inner workings of the EVM execution client geth
- Knowledge about the inner workings of the various Ethereum rollup clients including but not limited to op-geth, understand the underlying components, and have opinions about the various trade-offs of those components and platforms
- Experience with p2p network technologies such as libp2p
Technologies we use and teach:
- GETH and its various Rollup forks
- Golang/Rust
- Node.js/TypeScript
- libp2p
- RabbitMQ
- Redis
- GCP (less AWS)
- Ethers.js
- Subgraphs
Benefits
- Work very autonomously
- Generous GEL token package
- Competitive Salary
- Work together with one of the best technical teams on Ethereum
- Build relationships with top teams which are already Gelato users, including MakerDAO, Optimism, Pancakeswap and many more
- Chance to travel the world to go to exciting events and connect with key players in this industry
- Join amazing in-person offsites all over the world
Base is planning to bring a million developers and a billion users onchain. We need your help to make that happen.
Coinbase is seeking experienced backend engineers to join our team to build out the next generation of crypto-forward products and features. You will solve unique, large scale, highly complex technical problems, bridging the constraints posed by web-scale applications and blockchain technology. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe, operating real-time applications with high frequency, low latency updates, and managing the most secure, dockerized infrastructure running in the cloud.
What you'll be doing:
- 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:
- You have at least 5 years of experience in software engineering.
- Youâve 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.
- Youâre 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.
- Youâve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
- Youâve built financial, high reliability or security systems.
Job #: GBBE05US
<div class="content-conclusion">
Commitment to Equal Opportunity
Coinbase is committed to diversity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may viewPay Transparency,Employee RightsandKnow Your Rightsnotices by clicking on their corresponding links. Additionally, Coinbase participates in theE-Verify programin certain locations, as required by law.
Coinbase is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please send an e-mail to accommodations[at]coinbase.com and let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).
Global Data Privacy Notice for Job Candidates and Applicants
Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.
Apply Now:
What you will be doing:
- Drive quality initiatives to improve Circle’s system availability and reliability
- Help with peer review on code changes and test cases
- Isolate issues and report to the issue tracking system
- Verify bug fixes and prevent regression bugs by creating quality tools and detecting early
- Test web applications and underlying services, API services, and mobile apps (iOS and Android)
- Participate in designing and building testing processes and test frameworks
- Plan, develop/maintain automated UI and/or API tests
- Develop test tools and programs to fulfill internal needs
- Give internal knowledge sharing on technical topics
- Mentor new hires and junior engineers
What you should have (not all required):
Staff Software Engineer, Quality (IV)
- 7+ years of experience in software testing
- Bachelor’s (or higher) degree in computer engineering, computer science, or a related field
- Proficiency in writing clean and maintainable code in TypeScript or JavaScript
- Expertise in API/UI automation testing
- Strong understanding of and ability to utilize automation frameworks
- Familiarity with Linux/macOS operations
- Knowledge of network protocols like HTTP and RESTful APIs
- Experience with CI/CD practices, particularly using GitHub Actions
- Familiarity with Docker, Kubernetes (k8s), and AWS
- Skills in effectively locating or adopting existing tools, or developing new tools as needed
- Dedication to designing and executing various types of testing (e.g., functional, stress, performance, load)
- Ability to design and build automation frameworks from scratch
- Experience contributing to in-house testing infrastructure and frameworks
- Ability to integrate automation frameworks with CI/CD pipelines
- Ability to clearly and concisely describe issues
- Agility and flexibility in fast context-switching
- Capability to guide and mentor more junior team members
- Proficiency in English communication in a professional setting
- Ability to lead internal team projects and develop practical plans to achieve predefined objectives
- Passion for pursuing extensive blockchain/testing knowledge and skill excellence
- Skilled in leading medium to large projects with high complexity that may involve multiple engineers, potentially from other teams
- Delivers high-quality software on time, rarely missing their commitments
- Provides feedback on software decisions made by other teams
- Experience in designing scalable, reliable and low barrier-to-entry testing or quality infrastructure
Apply Now:
What you will be doing:
- Drive quality initiatives to improve Circle’s system availability and reliability
- Help with peer review on code changes and test cases
- Isolate issues and report to the issue tracking system
- Verify bug fixes and prevent regression bugs by creating quality tools and detecting early
- Test web applications and underlying services, API services, and mobile apps (iOS and Android)
- Participate in designing and building testing processes and test frameworks
- Plan, develop/maintain automated UI and/or API tests
- Develop test tools and programs to fulfill internal needs
- Give internal knowledge sharing on technical topics
- Mentor new hires and junior engineers
What you should have (not all required):
Senior Software Engineer, Quality (III)
All the requirements of a Software Engineer in Test (II) and:
- 4+ years of experience in software testing
- Contribute to in-house testing infrastructure and framework
- Ability to guide more junior members of the team
- Expertise in API/UI automation testing
- Excellencies in designing and building automation frameworks from scratch
- Ability to integrate automation frameworks with CI/CD (GitHub Actions or similar)
- Skills in efficiently locating/adopting existing tools or developing new ones upon needs
- Familiarity with Docker
- Experience with k8s and AWS
- Experience in leading a small team (Optional)
- Ability to lead internal projects of the team and make practical plans to achieve predefined objectives
Apply Now:
CoW DAO
UK
About CoW Protocol
CoW DAO is on a mission to protect Ethereum users from the dangers of DeFi. It does this by supporting the development of CoW Protocol, CoW Swap, MEV Blocker, and CoW AMM, and by funding values-aligned projects through the CoW Grants Program.
CoW Protocol is the second-largest DEX aggregator by monthly volume and the first-largest intents-based exchange. MEV Blocker is currently involved in ~4% of all Ethereum transactions, making it the category leader. CoW AMM is the only live AMM that protects LPs from LVR (loss-versus rebalancing).
As a member of CoW DAO’s core team, you will have the opportunity to shape these essential products, and contribute to the Ethereum ecosystem more broadly.
About the role
- Location: We are a fully remote team, and although we hire globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time
- Position: Full-time contractor
We are looking for an enthusiastic, self-motivated, senior backend engineer to help us build the next generation of decentralised trading protocols. As a dedicated backend engineer, you will gain ownership of our existing backend services and influence the creation, design, and execution of future features and products. You will work on technically challenging aspects of our off-chain services and our developer-facing APIs and help ensure the delivery of reliable and performant features to improve CoW Protocol.
What you will do
- Architect and design our off-chain services (core auction protocol as well as the orderbook) to support feature growth and the rapidly changing requirements that come from being an application on a constantly evolving blockchain.
- While your focus will be writing concurrent backend systems in Rust, you will also interact with our Smart Contracts written in Solidity and develop your understanding of auction mechanisms and DeFi protocols
- Work closely with researchers and the product team to ship features and come up with new solutions for challenging technical problems
- Deliver high-quality code for features from concept until production (including state-of-the-art monitoring of our production systems)
- Help our engineering team maintain and improve the reliability of the existing features and join in the on-call rotation
- Give thoughtful and in-depth code reviews of your colleagues’ contributions to our open-source codebase
Our Tech Stack
- Backend Code: Rust, Tokio, Cargo, Git https://github.com/cowprotocol/services
- Infrastructure: Pulumi, AWS, Docker, Kubernetes, Grafana, Prometheus, Elasticsearch
- Other codebases: Typescript, Python, Solidity
Who you are
- You have at least 1 year + of productional experience with Rust (experience with C++ is a great bonus)
- You have excellent computer science, programming, and algorithmic skills
- Experience in web3 (ideally DeFi and Ethereum blockchain)
- Experience with operating, maintaining, and architecting complex software systems
- You care deeply about the quality, readability, observability, and testability of your code
- You proactively give technical direction to improve performance, prevent issues, optimise data usage, and refactor the codebase
- You are a team player, strong communicator, and gladly share your expertise with others
- You collaborate effectively with a remote-first team on a large, open-source codebase
- Ideally, someone senior who can mentor colleagues and provide direction.
- You are excited to explore and gain experience with Ethereum
What we can offer you
- Flexible work environment: Join our hub in Lisbon or work remotely
- Token plan: Have a stake in our mission and shape the future of CoW DAO
- Periodic gatherings: Enjoy opportunities to connect with the rest of the team through regular trips
- Conference allocation: Stay up-to-date with ecosystem advancements using our conference budget
- Learning budget: Use our learning budget to support your higher ambitions
- Hardware budget: Take advantage of a hardware budget for acquiring necessary equipment
- Make an impact: You are joining a startup where you can make a huge difference. Your work matters! -Flat hierarchies mean fewer processes and bureaucracy - see more of your ideas come to life!
- Flexible work and vacation times: Prioritize work-life balance through our robust flexible work policy and vacation allowance
- Growth: If you’re someone who loves taking the initiative and getting things done, CoW offers lots of opportunities for your individual growth
Culture
Life within the CoW Protocol is an incredible adventure! We take pride in our collaborative approach, embracing autonomy and fostering a culture of big thinking and continuous growth. We value impact, ownership, simplicity, and team spirit. Plus, we’re all about feedback, coming together, and enjoying the journey along the way!
At CoW Protocol, we strive to create a space where everyone feels included and empowered. We believe that our products and services benefit from our diverse backgrounds and experiences. All qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability.
From the code to the values, we are Ethereum-aligned. We believe Ethereum has the potential to solve some of humanity’s most crucial coordination issues. Since our initial inception as a non-profit research group, we have have sought to scale both its technology and values.
At present the most pressing bottleneck to the growth of Ethereum is its performance and scalability. We are building the most elegant solution to this problem. We do this out in the open because we believe in open source and its ability to accelerate innovation.
Not only do we improve Ethereum's performance by orders of magnitude, we donate 100% of the profits generated from doing so to Ethereum public goods. We do this because we believe the future of the open internet is too important to be left to chance. By operating as a Public Benefit Corporation we're able to align private incentives with public good and create a positive-sum economic model that provides a sustainable future for the internet.
We are looking for an experienced Software Engineer, Developer Experience to join our growing Platforms team. The goal of the Platforms team is to build the best development experience in crypto to support both internal and external open source protocol developers. An ideal candidate is high-agency and excited about ownership of tooling and infrastructure.
What are the role responsibilities?
- Support developer velocity with an emphasis on protocol developer tooling and infrastructure
- Optimize continuous integration build and test times
- Work in public and across engineering teams to tighten the development feedback loop
- Ensure our development stack is delightful, reliable and built in the open supporting both internal and external contributors
What skills do you bring?
- Desire to build an industry-leading development experience for internal and external teams relying on our code
- Prior hands-on experience with or exposure to development of decentralized protocols
- Experience working with Docker and optimizing Docker builds
- Experience with Kubernetes
- Experience developing with Go
- Experience making software work on a variety of platforms and operating systems with emphasis on resource usage and monitoring
- Willingness to learn from and adapt quickly to the needs of your teammates in a fast-paced environment
- Familiarity with monorepo-based software development
Apply Now:
Arrakis Finance
Remote
Description
Arrakis aims to disrupt the current market-making industry by providing the infrastructure to enable every project in the world that wants to launch a token to benefit from non-custodial, trust-less, and automated on-chain market-making strategies. We believe in a world where every organisation, from a small startup to a large enterprise, will be tokenized and traded on-chain. For this world, Arrakis is building the tools to create the necessary liquidity to enable this token economy to rival and out-compete the traditional financial industry.
As one of our Backend Developers within market making, you will be further contributing to the cutting edge development of Arrakis, working with a very experienced and high performing team to create the future of DeFi.
What you will achieve:
- Creation of new on-chain trading strategies
- Monitoring, tuning and improving market making performance across chains.
- Develop backend infrastructure for our market making operations
- Develop, refine and implement strategies and infrastructure for algorithmic liquidity provisioning for the major tokens of the industry
Requirements
- Strong experience building and developing high frequency, ultra-low-latency applications
- 3+ years of experience with C++ / Rust
- Good understanding of the financial market, order books, market making, arbitrage and/or markets microstructure
- A bachelor’s degree in computer science, maths, physics, or similar field
- Experience working with SQL databases
- Experience with Google Cloud / AWS
- Experience working with containers such as Docker / Kubernetes
- Awareness of security principles for critical finance applications, both on and off-chain.
Nice to have:
- Previous automated market making experience and experience with Uniswap
- Experience building your own trading bot
- CEX / DEX arbitrage experience
- Experience dealing with low level networking advantageous (TCP/IP, UDP, networking in the cloud, packet decoding, latency)
- Passionate about contributing / researching cutting edge DeFi technologies.
- Ability to know/understand smart contract code
Benefits
Join an amazing team of industry veterans focused on revolutionising web3 market making, collaborating with major projects like MakerDAO, Uniswap, Aave, Lido, operating fully remotely with members spanning Zug, Paris, New York, Berlin, London supported by world-class investors including Uniswap Labs, Robot Ventures, Accel, Longhash, and more.
What we offer:
- Competitive salary + performance-based compensation
- SPICE token package
- Work remotely or with the Founders in person, in Switzerland
- Chance to travel the world to go to exciting events, connecting with key industry players
- Join amazing in-person offsites all over the world
1. Claimy, our flagship mining game, offers fast-paced gameplay, NFT integration, and a strong community.
We are developing features of varying complexity, ranging from standard TMA features such as the Referrals system and Tasks, to more advanced ones like integrating a Designs shop or connecting games to our infrastructure.
2. We are developing the game using TypeScript, NestJS, PostgreSQL, RabbitMQ, Docker, React.js, Vite, Ton Connect, and the Telegram SDK.
We are seeking either a full-stack developer or several developers specializing in frontend and backend development separately.
The selected developers will collaborate with our CTO in planning, developing, and testing tasks.
3. What we expect from candidates:
- Experience with required technologies.
- Proficiency in Docker and Github
- Prior experience in blockchain development
- Familiarity with TON Connect
- Professional experience starting with Middle Minus level
4. By joining our team, you will have the opportunity to:
- Work on engaging and challenging tasks in a remote-first environment.
- Expand your expertise in blockchain development, decentralized systems, and token management applications.
- Play an active role in decision-making and see your ideas come to life.
- Be part of a collaborative team that values and encourages contributions from all developers.
5. We have several hiring options:
- One full-time full-stack developer
- One part-time front-end developer and one full-time developer.
Working time is flexible.
6. Please kindly share your CV if you are interested.
Apply Now: