Nimbus is a research team that focuses on developing an Ethereum client and library. We believe that the largest deployment of Ethereum will potentially be on embedded systems and Nimbus is designed to perform well on embedded, mobile and generally resource-restricted devices.

Building the stack from the ground up, we’re translating the latest Ethereum research into practical, performant and reusable libraries to provide a fertile exploration ground for further R&D.

Check out our latest update!

The role:

We’re looking for an experienced Ethereum Validator Operations Lead to help us run our staking operations smoothly and efficiently. This role involves working with Ethereum node operations, staking mechanisms, and DeFi analytics to drive growth and profitability.

Responsibilities:

Prepare for upcoming updates:

• Stay on top of important updates to the Ethereum network, such as the Pectra update.
• Assess how these updates will affect our operations and make any necessary changes.

Node operations and DeFi:

• Oversee the technical aspects of our Ethereum node operations to ensure they’re running smoothly and efficiently.
• Use your knowledge of DeFi protocols, particularly Lido, to optimise our staking strategies.

Expand and grow staking operations:

• Explore opportunities to expand our staking operations beyond Lido, including working with other protocols and institutional partners.
• Balance growth with the continued support and improvement of our existing Lido operations.

Asset and portfolio management:

• Strategically manage the assets we’ve earned from staking operations, looking for ways to grow and diversify them.
• Analyze the market to inform our portfolio decisions.

Optimize operations and monitoring:

• Work with our Insights group to set up monitoring tools to track our staking operations’ performance and profitability.
• Continuously look for ways to improve our infrastructure and operations to reduce costs and increase profitability.

Maximize revenue:

• Find ways to capture private order flows and develop solutions to increase revenue.
• Identify and capitalise on other opportunities to enhance our revenue streams.

Reduce costs:

• Lead efforts to minimise operational costs, focusing on efficient resource allocation, hardware, and personnel.

Requirements:

• Required professional experience in a similar role within the Ethereum/DeFi ecosystem, with a focus on staking operations and growth strategies.
• Strong understanding of Ethereum, node operations, and staking mechanisms.
• Proven experience in DevOps practices, infrastructure optimisation, and monitoring solutions.
• Background in DeFi, particularly with Lido, and the ability to work with other staking protocols.

Hiring Process:

• Interview with our People Ops team;
• Two or three interviews with Nimbus team members & the venture studio, the Institute of Free Technology.

[The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline. We’re looking for you to join our team as soon as possible].

Bonus Points:

• Experience with MEV capture solutions.
• Familiarity with institutional staking operations and partnerships.
• Knowledge of portfolio management principles and asset diversification strategies in the crypto space.

Compensation:

We are happy to pay in any mix of fiat/crypto.

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.