Top Full-Stack Engineer Jobs in Chicago, IL

Lead and contribute to design, develop, test, and maintain secure, scalable Java-based enterprise applications. Drive architecture reviews, apply AI-assisted engineering practices, automate remediation, mentor teams, and promote reuse and operational stability across the SDLC.

Lead technical direction and delivery for the Acquisition & Onboarding full‑stack team. Build and maintain mobile (React Native/native) and web experiences, backend services at scale, and operational tooling. Drive architecture, mentor engineers, ensure reliability/monitoring/on‑call readiness, collaborate with product and design, and improve dev processes, testing, and release practices to impact conversion and retention.

Build low-latency .NET APIs and backend services alongside Angular interfaces for a large-scale financial platform. Develop microservices and message-driven systems, maintain API contracts, implement automated testing, participate in code reviews, and manage production services through CI/CD and observability tools. The role also involves using AI coding assistants, supporting Agile/Scrum practices, and delivering analytical tools for investment decisions.

Lead a team of developers to build cloud solutions, mentor engineers, stay updated on tech trends, and deliver robust systems using various programming languages and frameworks.

Lead a team of developers in creating full stack cloud-based solutions, focusing on resilience and regulatory needs, while mentoring peers.

Lead diverse technology projects, mentor developers, and create full stack solutions for regulatory needs using modern technologies and cloud solutions.

Lead a diverse portfolio of technology projects, collaborate with product managers, mentoring developers, and deliver cloud-based solutions for financial empowerment.

Lead the architecture and development of backend platforms, REST and GraphQL APIs, service integrations, security patterns, and AI/LLM integration capabilities. Build observability and reliability infrastructure, contribute to full-stack features using TypeScript and Next.js, and establish engineering standards across the team. Ensure HIPAA-compliant handling of PHI while owning complex systems from architecture through production operations.

Build and deploy full-stack healthcare features using TypeScript, React, and Next.js. Develop accessible, trustworthy interfaces for AI-generated clinical content, integrate APIs, manage client state, contribute to component libraries and design systems, and implement HIPAA-compliant data handling. Collaborate with engineers, product managers, and designers through code, architecture, and design reviews. Own features from design handoff through production deployment.

Lead an agile team to design, develop, and maintain secure, scalable Java/Spring Boot microservices. Produce high-quality code, drive architecture/vendor evaluations, automate remediation, promote AI-assisted engineering practices, and ensure operational stability and secure SDLC adoption across teams.

Develop and ship full-stack web and mobile experiences across Affirm’s consumer app and website. Collaborate with product, design, analytics, and engineering teams to break down projects, make technical decisions, write tested and extensible code, launch scalable APIs, monitor service health, support on-call operations, review code, and participate in team development and interviewing.

Lead a team delivering full-stack, cloud-based microservices and developer tooling. Drive technical direction, mentor engineers, collaborate with product managers, and build scalable solutions using modern languages, containers, orchestration, and cloud services to meet regulatory and customer needs.

As a Fullstack Engineer, you'll design, build, and operate web applications, collaborating with product teams and mentoring peers while ensuring best practices in coding and system architecture.

Design and implement full‑stack, low‑latency web-based Ground Control Station and C2 systems (map-centric UIs, real-time telemetry, video streaming), lead architecture and APIs, mentor engineers, support field tests and mission deployments, and ensure interoperability with C2 standards.

Build and scale consumer-facing mobile and web applications and backend services. Own features end-to-end across frontend and backend, optimize databases and queries, integrate third-party APIs, implement algorithms for risk and transaction evaluation, improve reliability and CI/CD, and contribute to testing, monitoring, and internal tools to support customer operations.

Senior fullstack engineer to build and scale Brigit's consumer finance platform. Own end-to-end features across frontend (React/React Native/TypeScript) and backend (Java/REST/SQL), optimize database and APIs for high scale, integrate 3rd-party services, implement risk and transaction algorithms, improve CI/CD, testing, monitoring, and internal tooling to support millions of users.

The role involves leading software engineering projects, managing a team, collaborating with product managers, and developing cloud-based solutions using various programming languages and AWS services.

Lead and deliver cloud-based, full-stack microservices solutions; manage a portfolio and mentor engineers; collaborate with product managers; design and implement systems using modern languages, containers, and cloud services to meet regulatory and customer needs.

Build and maintain the TypeScript-based Duo Client SDK, including Node.js core packages, public APIs, browser-compatible modules, Vue 3 client components, and platform adapters. Responsibilities include migrating consumers from the GitLab Language Server, managing versioning and deprecation paths, strengthening credential security, optimizing browser performance, writing tests, conducting code reviews, and participating in on-call support.

Build and maintain full-stack software across data models, APIs, user interfaces, workflows, and production systems. Develop accessible, form-driven applications using TypeScript, Node.js, NestJS, React, and Next.js. Design transactional and flexible databases, implement asynchronous processing, and write unit, integration, and end-to-end tests. Participate in code reviews and technical design discussions while improving scalability, security, reliability, and WCAG compliance. Own features end to end with growing autonomy and collaborate with senior engineers and technical leadership.

Build and maintain full-stack features for a production healthcare platform using React, Next.js, TypeScript, Node.js, PostgreSQL, and RPC services. Contribute to AI and LLM-related codebases, handle sensitive regulated data, and collaborate with product, QA, and design teams in an Agile environment.

As a Senior Software Engineer, you will design and build a cutting-edge identity search platform and implement AI systems for defense applications, working closely with cross-functional teams to enhance user workflows and support national security.

Design and implement scalable backend services for payment and transaction workflows using Java. Own end-to-end features from data model and APIs to Angular frontends, improve reliability and performance, refactor legacy systems, troubleshoot production issues, and collaborate with product and design. Leverage AI-assisted development tools responsibly and share best practices across the team.

Lead a portfolio of full-stack, cloud-based projects and a team of developers to build distributed microservices and compliant solutions. Collaborate with product managers, mentor engineers, experiment with new technologies and AI tooling, and deliver scalable experiences using languages and tools such as JavaScript, Java, TypeScript, Python, Go, SQL, RDBMS/NoSQL, Docker, Kubernetes, and AWS.

Lead a team delivering cloud-based, full-stack microservice solutions; mentor engineers; collaborate with product managers; build with Go, JavaScript/TypeScript, SQL, cloud platforms, containers, and databases to meet regulatory and customer needs.