Top Tech Jobs & Startup Jobs in Chicago, IL

Support external developers integrating a cross-chain communication protocol, provide technical troubleshooting, create and maintain developer documentation, and contribute improvements to protocol features while staying current with blockchain advancements.

Optimize and scale blockchain node performance, design and implement core system plugins, collaborate with cross-functional teams, conduct performance testing and debugging, and stay current on blockchain and distributed systems technologies to maintain reliable infrastructure.

Lead delivery of institutional web3 trading dashboards by managing timelines, resources, stakeholder communications, and integrating on- and off-chain data. Combine project management and UI/UX design to create intuitive, DeFi-focused trading interfaces.

Develop and optimize ultra-low-latency algorithmic trading and execution engines for cryptocurrency markets. Collaborate with quantitative researchers and traders to implement and maintain high-performance HFT systems, troubleshoot production issues, and continually improve system latency and reliability.

Build and maintain automated test suites for smart contracts and UIs, integrate testing into development, track bugs, improve frameworks, and ensure test coverage for new features.

Design and implement core Web3 protocol features and secure smart contracts. Develop and deploy Solidity-based contracts, ensure scalability and performance, review code, mentor junior engineers, and collaborate across teams to integrate blockchain and DeFi solutions.

Lead and scale non-engineering functions by designing operational frameworks, overseeing finance and crypto treasury, managing legal/regulatory counsel, building international HR and remote-first practices, and translating CEO vision into measurable operational roadmaps to support rapid global growth.

Develop and maintain Java backend services for enterprise blockchain applications, integrate APIs with React/Vue frontends, design scalable blockchain solutions, troubleshoot complex backend issues, and collaborate with the team to apply best practices and stay current with blockchain trends.

Lead protocol and backend engineering for a high-performance Solana-based DEX. Architect and implement low-latency trading infrastructure in Rust, develop core exchange primitives (margin, liquidation, liquidity models), audit latency-critical code paths, and mentor teams to maintain rigorous engineering standards and reliability.

Drive institutional client acquisition and onboarding across the CIS region, targeting hedge funds, family offices, and prop trading firms. Act as strategic partner, promoting liquidity, API infrastructure, and bespoke trading services. Shape product via client feedback, represent the exchange at regional events, and grow institutional volume and AUM.