Senior Backend Engineer (Web3)

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

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hirify.global is on a mission to protect Ethereum users from MEV and optimize trade execution across DeFi.

Overview

We are looking for a 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 to support feature growth and the rapidly changing requirements.
• Interact with our Smart Contracts written in Solidity and develop your understanding of auction mechanisms and DeFi protocols.
• Participate in our on-call rotation to help ensure the reliability of our production systems.
• 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.
• Give thoughtful and in-depth code reviews of your colleagues’ contributions to our open-source codebase.

Requirements

• You have 5+ years of production experience with systems-level programming languages, with at least 1+ year of hands-on production experience using Rust
• You have practical experience working in web3 (ideally in DeFi and the Ethereum ecosystem)
• You have excellent computer science, programming, and algorithmic skills
• Experience with operating, maintaining, and architecting complex software systems
• You care deeply about the quality, readability, observability, and testability of your code
• You are a team player, strong communicator, and gladly share your expertise with others

Culture & Benefits

• Flexible work environment: Join our hub in Lisbon or work remotely
• Token plan: Have a stake in our mission and shape the future of hirify.global
• Periodic gatherings: Enjoy opportunities to connect with the rest of the team through regular trips
• Learning budget: Use our learning budget to support your higher ambitions
• 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