Top Full-Stack Engineer Jobs in Chicago, IL

The role involves designing and building AI-native systems for revenue teams at Upside, including developing applications, partnering with teams, managing the entire stack, and improving system reliability and performance.

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.

Build and own end-to-end full-stack features across backend services and user-facing applications. Contribute to system design, reliability, performance, observability, and engineering practices while collaborating with product and design.

Senior Full Stack Software Engineer role at Upside focusing on driving quality software development and enhancing consumer experiences through collaboration and technical choices.

Lead development of highly available, scalable payment systems and a team of engineers; design and operate distributed microservices and full‑stack solutions; collaborate with product managers to deliver cloud‑based services; mentor engineers and evaluate code; use JavaScript/Java/TypeScript/Python/Go, RDBMS/NoSQL, Docker/Kubernetes, and AWS/Azure/GCP.

Lead teams and projects to design, build, and operate scalable, highly available payment systems. Mentor engineers, collaborate with product managers, deliver cloud-native full‑stack solutions using microservices, containers, databases, and AWS/Azure/GCP technologies, and occasionally write or review code.

Lead and mentor engineering teams to design, build, and operate highly available, scalable payment systems (debit network) using cloud-native microservices. Collaborate with product managers, deliver secure cloud solutions, and occasionally write or review code. Drive technical transformation, experiment with new technologies, and support regulatory needs.

Lead design and delivery of an AI-first developer portal and secure external API platform. Build AI-enabled support experiences, own authentication/credential workflows, establish production standards for AI/automation, remain ~50% hands-on coding, drive cross-functional delivery, and coach engineers to improve quality and reliability.

Modernize a large fintech platform by building NestJS services and Next.js UIs, migrate transactional data to relational schemas, write comprehensive tests, identify and fix legacy problems, design scalable solutions that coexist with legacy systems, and use AI tooling responsibly to increase engineering velocity.

Design, build, test, and deploy cloud-native full-stack applications. Implement CI/CD and GitOps pipelines, manage APIs and microservices, deploy containerized workloads on major clouds, integrate LLM/AI APIs securely, conduct code reviews, troubleshoot issues, and collaborate with clients and cross-functional teams to translate business requirements into technical solutions.

Lead and mentor a team building high-throughput, resilient distributed microservices and full-stack cloud solutions for global payment processing. Collaborate with product managers, design scalable systems, ensure observability and reliability, and occasionally code, evaluate, and modernize platforms using cloud, container orchestration, and multiple programming languages.

Develop and maintain React/Next.js front ends, JVM APIs and Python ETL supporting analytics. Build scalable, cloud-native services (AWS/GCP), CI/CD pipelines, containerized deployments, and integrate data technologies. Collaborate with product, mentor teammates, apply AI tooling, and optimize performance and reliability.

Lead a team delivering cloud-based, full-stack, microservices solutions for payment network and regulatory needs. Mentor engineers, drive technical direction, collaborate with product, and occasionally write or evaluate code. Leverage containers, cloud services, databases, and modern languages to build scalable systems.

The role involves solving complex technical problems as a full-stack engineer, optimizing front-end performance, and collaborating closely with designers to enhance user experiences. Responsibilities include code and design reviews, documentation, and a strong emphasis on accessibility and using AI tools to improve workflows.

Lead and architect full-stack cloud services and user experiences for credit card acquisition, mentor engineers, own deployments, and apply emerging AI/LLM technologies to drive product and engineering improvements.

As a Senior Lead Software Engineer, you'll lead diverse tech projects, mentor developers, and deliver cloud solutions at Capital One.

Build and maintain full‑stack web applications using Vue/Nuxt, TypeScript, Node.js and AWS. Implement SSR/SSG apps, reusable components, APIs, integrations with CMS and third‑party services, and improve performance, accessibility, SEO, monitoring, and AI-enabled marketing workflows. Participate in reviews, debugging, and cross‑functional collaboration.

Lead and mentor engineering teams to design and deliver cloud-native, full‑stack microservices. Build solutions using modern languages, containers, orchestration, and cloud services to meet regulatory needs and improve customer experiences. Collaborate with product managers, drive technical strategy, and occasionally write or review code.

Design and build web and mobile applications using Node.js and AngularJS, translating complex requirements into user-friendly experiences while documenting best practices and participating in design reviews.

Lead software engineers will manage diverse tech projects, provide mentorship, and deliver robust cloud solutions to meet regulatory needs.

Lead a team and portfolio to design and deliver cloud-based, full-stack microservices solutions. Mentor engineers, collaborate with product managers, and build scalable systems using modern languages, containers, orchestration, databases, and cloud services to meet regulatory and customer needs.

Develop and deliver production-ready web experiences for marketing using React, Gatsby, and Tailwind. Build API integrations, maintain a lightweight codebase and design-system components, ensure accessibility, performance, SEO, and multi-region support, participate in code reviews, and help shape tooling and best practices across the team.

Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.

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