Top Software Engineer Jobs in Madison, WI

Design, build, and maintain frontend applications with React, Next.js and TypeScript. Integrate with backend APIs, optimize performance, ensure UI/UX quality, write tests, follow TDD and agile practices, and collaborate with designers and engineers.

Design and implement scalable Golang backend services; collaborate with frontend and DevOps; optimize performance and scalability; write clean, test-driven code; work with PostgreSQL and MongoDB; participate across the software development lifecycle; ensure cloud-based availability and security.

Remote frontend engineer responsible for developing and maintaining ReactJS/NextJS/TypeScript applications, integrating APIs, optimizing performance, ensuring UI/UX consistency, and writing unit/integration tests. Collaborates with backend engineers and designers, follows agile practices, and applies TDD, cloud, security, and SEO principles.

Design, build, and maintain backend services and APIs with Node.js and TypeScript. Integrate with frontend teams, optimize for performance and scalability, implement PostgreSQL and MongoDB solutions, follow test-driven development, participate in code reviews, and work in an agile environment to continuously deliver features.

Design, build, and optimize scalable backend services in Golang. Collaborate with frontend and DevOps teams, implement TDD, work with PostgreSQL and MongoDB, ensure high availability and security in cloud environments, and participate in the full software development lifecycle.

Build and maintain Plane's local-first browser client surfaces: large, virtualized workspaces, collaborative editor, offline/caching layers, and shared design-system components. Work cross-functionally with designers and backend engineers, extend sync and conflict-resolution behavior, optimize rendering performance, and triage cross-browser and self-hosted issues.

Build and own backend surfaces for Plane: APIs, data models, migrations, real-time sync (CDC/event streams), caching, and query performance. Instrument, monitor, and debug production incidents; collaborate with product and frontend teams across locations.

Own and build Node.js/TypeScript backend services that power integrations, importers, queues, and developer-facing OAuth surfaces. Design reliable queue/worker systems (retries, idempotency, backpressure), integrate third-party APIs, collaborate with Django engineers, and repair partial failures to ensure safe, auditable data migrations and integrations.

Design, develop, test, document, maintain and support COBOL/CICS/DB2 mainframe applications for the NYS eMedNY MMIS. Produce SDLC artifacts, perform code review and unit/string testing, estimate efforts, resolve production issues, and collaborate with teammates and stakeholders to meet project standards and timelines.

Provide expert-level technical support for web and mobile products, debug high-performance RESTful services, triage incidents, coordinate cross-team incident response, collaborate with Client Success, Engineering, Product, and DevOps to resolve complex issues and improve product reliability.

12-week hands-on internship building full-stack features: frontend with React and TypeScript; backend services and REST APIs in Python (FastAPI); enterprise data integrations and ingestion pipelines; write tests, participate in Agile processes, code reviews, and troubleshoot production issues while learning AI and cloud technologies.

Design, build, test, and deploy production-ready web applications using React and Node. Create backend APIs and database schemas, deploy to AWS, ensure software quality, and collaborate within an Agile team.

Develop and deploy production-ready fullstack web applications. Build responsive React frontends, Node.js backend APIs, and supporting database schemas. Participate in Agile team activities, ensure code quality through testing, and deploy applications to AWS.

Design, implement, and maintain scalable, fault-tolerant backend services for real-time data synchronization and streaming. Optimize latency, throughput, and reliability, guide multi-region and disaster-recovery architecture, own projects from concept to production, and improve observability, automation, and incident response.

Lead end-to-end delivery of full-stack product and platform initiatives. Design and implement scalable frontend and backend systems, own production reliability and incidents, introduce pragmatic engineering practices, mentor engineers, and drive architecture and tooling decisions to balance speed and long-term maintainability.

As a Software Engineer - Backend, you will develop products and manage engineering infrastructure, focusing on system design, security, and code quality.

Design, develop, test, deploy, and support cloud-based web applications, web services, and IoT solutions. Collaborate with multidisciplinary teams and clients, participate in architecture and code reviews, troubleshoot issues, and follow Agile practices and CI/testing pipelines.

Senior Full Stack Engineer building scalable, high-performance web applications. Own feature design through delivery, write clean reusable code, optimize databases, work with CI/CD, containers, cloud, distributed systems, mentor teammates, and maintain zero customer-reported bugs.

Collaborate with a distributed team to develop, maintain, and modernize the Landscape management software for Ubuntu, focusing on quality code and automated testing.

Join Azure PostgreSQL to design, implement, and test relational database engine features (query processing, logging, recovery, IO, scale-out). Contribute to code, review, testing, and compliance activities while learning AI-enabled SDLC practices, monitoring systems as a designated owner, and collaborating within an inclusive engineering team.

Develop and maintain Java applications for DoD systems, focusing on backend services, REST APIs, and microservices, while ensuring security and performance.

Develop and maintain scalable investment portfolio management systems. Collaborate with cross-functional teams to ensure system correctness and client trust, focusing on complex domain logic.

Design and develop functionalities for the Agents framework, iterate on feedback, and create documentation while working with various programming languages.

The Senior SRE Engineer will design, build, and maintain resilient infrastructure systems, manage infrastructure-as-code, and write tooling in various languages.

As a Full Stack Software Engineer at Reacher, you'll own product features end-to-end, design scalable systems, mentor engineers, and lead architectural decisions in an AI-driven environment, focusing on both backend and frontend development.