Top Software Engineer Jobs in St. Louis, MO

The role involves software development lifecycle participation, application development in Java and Python, and production support, with a focus on large-scale distributed systems.

Design, develop, test, and maintain desktop and web applications that control automated saw machinery. Integrate software with electrical and mechanical systems, refactor for performance and reliability, participate in code reviews, and use AI-assisted and Agile development practices to deliver maintainable, production-quality solutions.

Lead SAR exploitation and imagery science initiatives, analyze SAR characteristics, develop algorithms and processing methods, and communicate findings.

Design and develop software modules in C++, perform unit and integration testing, and partner with QA. Must have 3+ years experience and strong Linux skills.

Design, develop, test, and deploy Java/J2EE applications and integrations. Lead implementation planning, gather and specify requirements, mentor junior developers, resolve defects, support production (on-call), and ensure database and SOX-compliant process documentation.

Design, develop, test, and deploy scalable backend-to-UI applications using modern practices (microservices, serverless, CI/CD, IaC). Leverage AI-assisted coding and LLM tools to accelerate development, write unit tests and documentation, participate in estimations and architecture discussions, triage and resolve performance or production issues, and collaborate in an agile team.

Lead modernization of legacy systems by migrating application logic to C#/.NET, improving observability, establishing CI/CD and automation, and using AI-assisted tools for code analysis, refactoring, and test generation. Troubleshoot incidents, author runbooks and post-mortems, define engineering standards, and work cross-functionally to balance risk, reliability, and business continuity.

As a Full Stack Software Engineer, you will develop and deploy software systems for DoD clients, enhancing operational capabilities and cybersecurity.

Develop web solutions using .NET and React for various clients, collaborating with designers and strategists to deliver high-quality applications.

As a Software Engineer, lead full-stack development, mentor engineers, and design secure microservices for geospatial applications. Collaborate with teams to meet compliance and performance needs.