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👋 GM

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

OpenCover operates at the intersection of blockchain security and insurance. Working in tandem with leading underwriters and industry players, we protect individuals, businesses and institutions against onchain risks such as malicious transactions, smart contract exploits and depegs.

Founded by Y Combinator alums, our team is backed by Tier 1 investors including Alliance, Coinbase Ventures (Base Ecosystem Fund), NFX, Village Global and Orange DAO, with support from the Lloyd’s of London Lab.

Want to join a high-performance, high-integrity team taking onchain safety to the next level? Read on.

🚀 Your role

You would join the founding team to develop core backend infrastructure working closely with our CTO. Your role would focus on expanding the first transaction security layer to insure billions in value. The work involves collaborating with top protocols and industry players to prevent incidents like the ByBit hack from ever happening again.

Areas you’ll work on

• Soft auditing and semantic modelling of leading protocol designs and functions.
• Designing, implementing and backtesting transaction validation checks.
• Developing asset pricing and transaction risk models.
• Tracking exposure and other insurance metrics in real-time.
• Iterating and expanding our API based on customer feedback.
• Staying up to date with industry trends including EIPs and security incidents.

You’d be a great fit if

• You’re a generalist who quickly embraces new technologies and challenges with a passion for building products from the ground up in a collaborative, tight-knit team.
• You go all out to use your knowledge and work well autonomously but know when to reach out for support.
• You have 5+ years of full-time experience developing and shipping backend services with Node.js and TypeScript.
• You’ve designed, implemented and/or audited smart contracts on EVM-compatible chains and have hands-on experience using DeFi.
• You’re familiar with PostgreSQL, messaging brokers, AWS/GCP, Docker, Bash and Linux.
• You are constantly improving your tech stack and use AI tools to accelerate development.

🙌 Our offer

• Put your dent in the universe: build products for and with some of the largest players across Web3 and TradFi.
• Directly impact company trajectory and play a key role in driving onchain adoption.
• Work IRL with the team at Lloyd’s of London 1–5 days a week— your choice!
• Flexible hours with 28 days of paid holiday plus company closure days.
• Competitive compensation based on experience + 0.1–0.5% equity.
• The equipment you need to do your best work + $1,000 for well-being and personal development each year.
• Company-paid travel to events and conferences, if that’s your thing!

Ready to apply?

Head to opencover.com/apply/bbe and get shortlisted in 10 minutes or less.

About CoW DAO

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 almost globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time

Please note we’re not hiring from the US, Australia, or New Zealand

Position: Full-time contractor

You’ll be joining the team overseeing the design, monitoring, and enhancement of the CoW Protocol’s solver competition. As the pioneer in intent-based trading, this competition has attracted top players in the field. Building strong relationships between solver teams (those responsible for executing trades onchain) and our core team is vital for the protocol’s growth.

Your role involves providing technical support to solver teams, identifying challenges they face, and collaborating with our core team to enhance the competition. You’ll also develop essential components for monitoring the competition, ensuring compliance and user protection. This journey will deepen your understanding of blockchain intents and our batch-auctions-based approach, exposing you to valuable data for insightful analysis. Ultimately, you’ll play a crucial role in ensuring the CoW Protocol’s solver competition operates effectively, in line with the CoW DAO’s principles of fairness, safety, and decentralization.

What you’ll do

• Provide technical support to solver teams; keeping them updated, gathering their input, and troubleshooting any issues that arise
• Dive deep into the competition dynamics, understanding the needs of solvers, and crafting tools to enhance competition monitoring
• Engage in various implementation tasks for the solver competition, like setting up rewards systems, managing token balances, and refining price data feeds
• Apply data analysis techniques to gain insights on the behavior of both our users and solvers, and design metrics to evaluate how strong our trading mechanism is
• Explore the fundamental Game Theory principles guiding the competition’s mechanics and rules
• Help towards the further decentralization of the solver competition

Who you are

• You’re skilled in coding, especially in Python, and familiarity with Rust is a bonus
• You’re proficient in SQL and comfortable navigating databases
• You’re intrigued by the Game Theory principles driving the mechanics of the solver competition
• You’re passionate about blockchain technology and advocate for a decentralized future in digital currencies
• You thrive on tackling complex problems, utilizing a range of tools, from algorithms to data analysis, to find effective solutions
• You enjoy collaborating with multiple teams, communicating openly to grasp their challenges and work together towards solutions
• You’re eager to develop a diverse skill set, delving deep into the blockchain technology supply chain and understanding the interactions among various entities, with a focus on the Ethereum blockchain

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.

About CoW DAO

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 almost globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time_

Please note we’re not hiring from the US, Australia, or New Zealand

Position: Full-time contractor

We’re on the lookout for a Smart Contract Engineer to join our team. If you’re passionate about blockchain tech, love solving complex problems, and thrive on ownership, we’d love to hear from you. We’ve got a packed roadmap full of exciting projects, and we’re all about building innovative, solid, and high-performance solutions as we grow

What you will do

• Build new features: work on new CoW Protocol features by developing new smart contracts and laying out support for them in our off-chain infrastructure
• Review protocol integrations: advise third parties on how to work with CoW Protocol, write grant proposals and support grantees in their execution
• Foster decentralization: contribute to designing the next version of CoW Protocol, in the spirit of removing central authorities and building trust through verifiable execution
• Contribute to the upkeep of the protocol: investigate suspicious transactions, detect on-chain misbehavior, support CoW DAO governance by participating in the discussion through its formal proposal process (CIPs)
• Maintainable code: collaborative coding through code review, internal feature discussion, full testing coverage, CI, public development process on GitHub
• Collaborating with a remote team, sharing feedback, and debugging

Tech stack you’ll be in contact with

• Smart contracts: Solidity, Foundry, rarely Hardhat
• Back-end contract services: Rust, Kubernetes
• Debugging and alerting: Tenderly, Grafana, Elasticsearch
• Data analysis: Python, Dune Analytics
• Governance: Safe Multisig, Snapshot
• Communication: GitHub, Slack, Notion, Zoom, Google Docs
• Supported chains: Ethreum, Arbitrum, Gnosis Chain, Base

Who you are

• Has solid Solidity expertise – with experience working on EVM-compatible chains
• Is skilled in Rust or Python – Rust is preferred, but Python works too as long as you’re open to learning Rust
• Delivers results – you have a proven history of writing high-quality, functional, and reliable code
• Works well remotely – async communication, detailed code reviews, and team collaboration are second nature to you
• Excels at problem-solving – you can tackle challenges with creativity and efficiency
• Takes ownership – you’re proactive and see things through to the end

A bonus

• Familiarity with the DeFi ecosystem
• Experience contributing to or managing open-source project

What we can offer

• 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

Referral Program

Earn 5.000 USDC or USD with the refer-to-earn program. More details here.

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.

3METAD - Revenue-based / Percentage-based compensation model to its employees.

We are looking fora Solidity / Full Stack Developerto work on exciting projects for the next-generation gaming and metaverse. If you're passionate about building cutting-edge, innovative software and want to work on projects that will impact the gaming and metaverse industries, we want you on our team!

Our Orc tribe is a pool of brilliant Orcs from many disciplines, such as 3D artists, concept artists, game developers, graphic designers, community moderators, front developers, and blockchain developers worldwide. We banded together to bring high-quality 3D content to the Meta Verse and NFT Space and self-publish our collections, games, and items. Our mission is to provide the highest quality 3D content and services to the community and self-publish our collections, games, and items.

❓WHO ARE WE LOOKING FORWARD TO HIRING?❓

You have2+ years of work experience or portfolio to demonstrate skills in front-end, back-end, and other languages (solidity/typescript/python, etc.), competencyin blockchain, smart contracts, and dapps development.Sounds like you? Then this job is for you!

❓HOW❓

We get better every day. Our technical abilities should never limit our ideas but direct our attention to the challenge;

We question the status quo. We don't accept yesterday's answers to tomorrow's challenges.

We follow our moral compass. Our values guide our decisions.

We surround ourselves with people who believe in our mission. We fail, learn, and grow. We want our successes and failures to contribute to the collective wisdom of our profession.

⏲HOURS⏲

You know yours is better than ours because you have different clocks. You are expected to work 18 hours a week, with one day per weekend. The times were built around your availability and our team's hours.

✅COMPENSATION ✅

Revenue-based / Percentage-based compensation model to its employees. There is no upfront payment available at the moment, No Investors or Revenue.

Primary Model: You'll receive a percentage of the company's profits. This aligns your success directly with the company's performance. The more the company grows, the more you earn.

Department Allocation: Each department is assigned a percentage of all earnings. Your share will be based on your contribution and output within the marketing department.

Commission Structure:

Sales-Driven: Commission will depend on the sales obtained from projects you contribute to. This is designed to reward direct results and high performance.

Project-Based Distribution: Commissions are distributed based on the contribution/output on a per collection/project basis.

✅Equity: ✅

We are also offering company equity as part of our long-term compensation package. This is an excellent opportunity for someone who wants to be a part of a growing company and have a real stake in its success.

⭐ Experience ⭐

We are seeking a skilled Web Developer with a strong emphasis on front-end development and JavaScript. The ideal candidate should possess a robust understanding of web development languages, particularly JavaScript, and have a passion for integrating art and design into highly functional web layouts and wireframes.

**Experience Requirements:**

- Minimum 2 years of experience in website development.

- Proficient in front-end technologies: JavaScript, HTML5/CSS3, Reactjs, NodeJS, Next JS, and WebGL.

- Experience in creating customer-facing websites with engaging design and functionality.

- Metadata understanding and development for complex assets and collections.

- Familiarity with SEO best practices to ensure optimal website performance.

- Skilled in using Github and Vercel for project development and deployment.

- Experience with AWS, API hosting/creation, and data manipulation tools (e.g., Redux).

- Knowledge of Solidity, Typescript, Python, Vue, Ethereum, Blockchains, Smart Contracts, Dapps, Web3.

- Understanding of Truffle, GQL, Moralis, Web3js/Ether JS.

- Knowledge of blockchain standards such as ERCA721 & ERC1155D.

- Familiarity with DAO and De-Fi concepts.

- Experience in creating stable, efficient tokenomics processes.

👍 Preferred 👍

- Portfolio showcasing previous web development projects.

- Experience in blockchain development, including Dapps, GameFi, or related areas.

- Bachelor's degree in Computer Science or related field, or equivalent experience.

✨Roles and Responsibilities ✨

- Deliver tasks promptly with accurate time estimates.

- Write clear, maintainable code with comments, ensuring minimal repetition.

- Collaborate with the team on product improvement and expansion.

- Develop secure, scalable smart contracts and Ethereum blockchain solutions.

- Be an integral part of a full-stack development team on diverse blockchain products.

- Test, document, and conduct code reviews to ensure quality and learnability.

- Coordinate across teams to deliver features efficiently.

- Provide technical expertise in feature development and foresee potential issues.

- Take ownership of extensive areas of web development and complex technologies.

🤹 Skillset 🤹

- Strong coding skills with the ability to write clean, readable, and performant code.

- Excellent debugging and optimization skills.

- Effective communication, both written and verbal.

- Teamwork orientation and willingness to engage in technical discussions.

- Research skills with the ability to adapt findings to the work context.

- Solid understanding of the software development process.

- Time management skills and end-to-end software development knowledge.

- Experience in development using Truffle or Remix is a plus.

🈸APPLICATION PROCESS⚙️

① Online selection

We review resumes from all applicants within two weeks. We will send you a small challenge if your profile matches our requirements. We will contact you again to schedule the first interview based on the results.

② Interviews

We conduct one interview to assess your character, passions, skills, and interest in what we do. We also take the time to share our vision and values, as we believe you are interviewing us as much as we are interviewing you.

③ Offer

We make our final decision within two weeks after the final interview and send details of our work together.

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