Top Senior Level Blockchain Software Engineer Jobs in Chicago, IL

As a Senior Software Engineer, you will design, develop, and maintain high-quality applications using React, mentor engineers, and influence technical strategy.

Design and maintain scalable backend systems with a focus on Web3 technologies, ensuring high standards of code quality and performance. Collaborate closely with product and engineering teams, leveraging AI tools to enhance productivity.

As a Solana Protocol Engineer, you will design, implement, and test programs on the Solana blockchain, collaborating with teams to develop secure smart contracts and protocols.

Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.

Build and maintain TypeScript/React frontends and SDKs for the Nomina web3 platform, create user-facing dapps, improve developer documentation and DX, and collaborate with product and engineering to deliver high-quality, mobile-friendly features.

Design, build, and maintain scalable end-to-end systems and APIs/SDKs for an enterprise custody platform. Work full-stack across databases, cloud deployments, CI/CD, and security; troubleshoot issues, integrate emerging technologies, and mentor junior engineers.

As Tech Lead for Payments, you'll design and build core systems for Polygon Labs' Open Money Stack, focusing on high-throughput payment services in Go, distributed systems, and collaboration with cross-functional teams while maintaining robust engineering standards.

As an AI Applications Engineer, you will bridge AI research and implementation, driving experiments, building infrastructure, and releasing products to improve user experience and metrics.

Build end-to-end full-stack product features, integrate smart contract/blockchain calls, design resilient backend systems and indexers, optimize performance, lead QA and mentor junior engineers.

Lead development of Aave's iOS app: build secure wallet and blockchain integrations, ship polished UIKit-based UI, optimize performance, collaborate with design and backend teams, and own large product areas end-to-end.