Senior Software Engineer - DeFi

• Ingesting and normalizing data across multiple chains (Ethereum, Solana, and L2 rollups like Arbitrum) and custody platforms
• Integrating with DeFi protocols -- AMMs, lending platforms, options vaults, staking providers -- to query on-chain state and track positions
• Building services that bridge on-chain activity to off-chain reporting: token balances, transfers, margin positions, settlement, and fees across different ERC standards
• Developing APIs and UIs that give traders and operations teams real-time visibility into DeFi positions and risk
• Modeling DeFi instruments (liquidity pools, lending markets, perpetuals, yield products) alongside their traditional finance equivalents for unified reporting and risk

• →Building systems with a constant focus on testing, reliability, scalability, and maintainability
• →Designing, modeling, and programming in a variety of languages and technologies
• →Working on legacy code as well as greenfield development
• →Taking initiative and driving projects to completion
• →Learning and promoting new technologies with a focus on best practices
• →Providing on-call support as needed
• →Sometimes working alongside other developers on the same task

We expect strong engineering fundamentals, but what truly sets candidates apart is hands-on experience navigating the DeFi landscape.

DeFi & Blockchain:

• Hands-on experience with EVM internals, smart contract ABIs, and libraries like ethers.js or web3.js
• Familiarity with DeFi protocols: AMMs (Uniswap), lending (Compound), options/structured products, or staking
• Understanding of multi-chain architectures -- L1s, L2 rollups, bridging, and cross-chain data challenges
• Exposure to Solana or other non-EVM chains is a plus
• Experience with oracle systems (Chainlink) or on-chain pricing
• Ability to reason about DeFi protocols from a financial perspective, e.g. how different AMM designs affect pricing, how lending rates compare across protocols, or what distinguishes different stablecoin mechanisms

Engineering & Stack:

• Multiple years of server-side development
• Willingness to learn Clojure, one of the team's primary languages
• Confident JVM knowledge
• Working knowledge of Node.js/TypeScript
• A solid understanding of micro-service architectures
• Proficiency in domain-driven design and domain modeling
• A good understanding of functional paradigms and type theory

Infrastructure & Tools:

• Kubernetes, Docker, ArgoCD
• PostgreSQL, Oracle, SQS, RabbitMQ
• Linux, Ansible, Nginx, Git

The annual base salary range for this position is $130,000 to $225,000 depending on the candidate’s experience, qualifications, and relevant skill set. The position is also eligible for an annual discretionary bonus. In addition, DRW offers a comprehensive suite of employee benefits including group medical, pharmacy, dental and vision insurance, 401k (with discretionary employer match), short and long-term disability, life and AD&D insurance, health savings accounts, and flexible spending accounts.