Top Senior Full-Stack Engineer Jobs in Chicago, IL

Design, scope, and implement scalable full‑stack ecommerce solutions. Improve platform performance and usability, collaborate with Product and Design, run experiments, ship features, and ensure seamless integration across the product ecosystem.

Lead a portfolio and team to design and deliver cloud-based, full-stack, microservices solutions meeting regulatory needs. Mentor engineers, collaborate with product managers, occasionally code and evaluate implementations, and use modern cloud, container, database, and AI-related tooling.

Lead and mentor a team building cloud-native, low-latency microservices and full-stack systems using Java/Go/AWS/Angular. Drive technical modernization, collaborate with product managers, ensure regulatory compliance, and occasionally code or evaluate implementations.

Responsible for leading a team of engineers, supporting product development, identifying technical issues, and ensuring high-quality code delivery in backend systems at scale.

As a Senior Full Stack Engineer, you'll design and develop custom Shopify applications, integrate solutions, and collaborate with clients to meet their needs.

As an Operations Reliability Engineer, design and implement automations to eliminate manual tasks in brokerage operations, focusing on efficiency and reliability while collaborating with cross-functional teams.

As a Senior Fullstack Developer, you will build and maintain moderation and user-safety applications for Bluesky's Trust & Safety team, collaborating with product teams and improving tools based on user feedback.

As a Senior Full Stack Engineer, you'll build high-performance observability tools, engage with developers, and tackle technical challenges in monitoring applications.

Lead and code fullstack features for the EVV team, provide technical leadership and mentoring, design and execute automated tests, monitor and troubleshoot production, contribute to product technical roadmap, and leverage AI-assisted development tools.

Design, build, and operate cloud-native, high-throughput payment and purchasing systems. Implement reliable backend APIs and modern frontends, embed automated testing and observability, champion event-driven patterns, and own operational readiness and scalability.

Lead diverse technology projects and a team of developers to create solutions for regulatory needs. Collaborate on cloud-based solutions and mentor engineers.

This role involves designing and developing scalable web applications, leading projects, mentoring engineers, and ensuring quality through best practices and collaboration.

Design, develop, and maintain web-based UI and REST middleware for federal health IT systems. Participate in Agile/SAFe ceremonies, write design documents, implement features, resolve bugs, and support CI/CD pipelines while collaborating with product, QA, and stakeholders.

As a Senior Full Stack Developer at Capnexus, you'll design and build a cloud-native subcontractor pre-qualification platform using AWS, incorporating AI and modern frontend/backend technologies, ensuring seamless integration and deployment.

Build and own data-driven dashboards and backend services for DeFi risk analysis. Develop React frontends, GraphQL APIs, and cloud-native data pipelines. Collaborate with research and protocol teams, mentor junior engineers, drive architectural improvements to the Alert Portal, ensure code quality through testing and reviews, and identify product and technical enhancements.

Design, build, and maintain scalable web applications using Python and React. Collaborate with teams and ensure application security and performance.

Seeking a Senior Fullstack Engineer with frontend focus in React, TypeScript, and Python. Responsibilities include frontend architecture, API building, and leading frontend standards. Requires 5+ years of experience with strong team collaboration.

The Senior Full Stack Engineer will design, build, and maintain web applications, leveraging AI, managing technical debt, and enhancing feature development while collaborating with cross-functional teams.

The Senior Full Stack Engineer will develop scalable web applications using Python and React.js, mentor team members, and enhance system performance while leveraging AI technologies. The role emphasizes collaboration, end-to-end feature ownership, and architectural improvements in a remote setting.

The role involves owning the product workflow, building user-facing features, maintaining systems, and collaborating with cross-functional teams. Strong React and Typescript skills are essential.

Design, develop, and maintain scalable web applications, mentor junior developers, optimize performance, and ensure best practices in coding.

Develop and maintain the frontend using Vue.js, integrate with Django APIs, ensure application performance, and participate in code reviews for continuous improvement.

The Senior Full-Stack Developer will create software solutions jointly with clients, ensuring high-quality code and effective collaboration with the team.

Lead full-stack delivery to modernize DHS ICE legacy systems by analyzing workflows, designing scalable backend services and APIs, building React front-end components, integrating with modern platforms (Palantir), supporting the full SDLC, troubleshooting across stacks, and collaborating with stakeholders to translate mission-critical functionality into a modern architecture.

Build developer tooling, documentation, and web experiences for AT Protocol. Develop and operate backend API and identity services, maintain open-source SDKs, support auth and identity management, and ensure production hosting and developer-facing APIs work reliably for third-party builders.