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Contract Web3 Development Jobs in Illinois (NOW HIRING)

Senior Software Engineer - DeFi

Chicago, IL · On-site

$126K - $166K/yr

... contract ABIs, and libraries like ethers.js or web3.js • Familiarity with DeFi protocols: AMMs ... side development • Willingness to learn Clojure, one of the team's primary languages • ...

Staff Software Engineer

Chicago, IL · Remote

$195K - $257K/yr

Web3, blockchain, smart Contract business logic * RESTful API design and development principles * Cloud services (AWS, Google Cloud, Microsoft Azure, etc) * Container orchestration systems like ...

Broadly, the development teams at DRW believe in rapid deployment and feedback, automated testing ... Hands-on experience with EVM internals, smart contract ABIs, and libraries like ethers.js or web3 ...

Contract Web3 Development information

What is the difference between Contract Web3 Development vs Contract Blockchain Development?

AspectContract Web3 DevelopmentContract Blockchain Development
CredentialsExperience with Web3.js, Solidity, smart contractsSimilar credentials, often overlapping with Web3 skills
Work EnvironmentDeveloping decentralized apps (dApps), integrating with Web3 protocolsBuilding blockchain protocols, core blockchain features
Industry UsageUsed in dApp development, DeFi, NFT platformsUsed in blockchain protocol development, network infrastructure
Search & ComparisonOften compared for frontend dApp workMore focused on core blockchain tech

Contract Web3 Development and Contract Blockchain Development share many skills, especially in smart contract coding and blockchain protocols. However, Contract Web3 Development emphasizes building decentralized applications and integrating Web3 protocols, while Contract Blockchain Development focuses on creating and maintaining blockchain networks and core infrastructure. Both roles are vital in the blockchain ecosystem but serve different aspects of blockchain technology.

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Infographic showing various Contract Web3 Development job openings in Illinois as of June 2026, with employment types broken down into 81% Full Time, and 19% Contract. Highlights an 51% In-person, 6% Hybrid, and 43% Remote job distribution.
Senior Software Engineer - DeFi

Senior Software Engineer - DeFi

DRW

Chicago, IL • On-site

$126K - $166K/yr

Full-time

Posted 22 days ago


Job description

Job Summary:
DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. They are seeking a Senior Software Engineer to build software that enables trading operations teams to manage their growing DeFi footprint, focusing on integrating DeFi protocols and developing systems for real-time visibility into DeFi positions and risk.
Responsibilities:
• 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
Qualifications:
Required:
• Strong engineering fundamentals
• Hands-on experience navigating the DeFi landscape
• 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
• 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
• 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
• Kubernetes, Docker, ArgoCD
• PostgreSQL, Oracle, SQS, RabbitMQ
• Linux, Ansible, Nginx, Git
Company:
DRW is a diversified trading firm that combines technology, research, and risk management to capture trading and investment opportunities. Founded in 1992, the company is headquartered in Chicago, USA, with a team of 1001-5000 employees. The company is currently Late Stage.