Top Software Engineer Jobs in St. Louis, MO

Develop and maintain mission-planning software for Department of Defense programs as part of a SAFe Agile scrum team. Responsibilities include software design, development, testing, debugging, systems integration, architecture and requirements documentation, troubleshooting, and process improvement. The role uses TypeScript, React, C#, microservices, and related software engineering practices while collaborating with product owners, systems engineers, hardware engineers, and program managers.

Develop and deploy enterprise applications using Python and C# across Oracle, SQL Server, and SQLite environments. Build CI/CD pipelines, Docker solutions, deployment scripts, automated tests, APIs, monitoring tools, and AI-powered automations. Provide production triage and print-facility support, document solution designs, participate in peer reviews, mentor engineers, and collaborate with operational and cross-functional teams.

Paid, full-time software engineering internship supporting Microsoft 365 collaboration tools. The intern will help administer and troubleshoot SharePoint Online, OneDrive, Power Apps, and Power Automate; respond to user support tickets; gather business requirements; develop applications and workflows; research platform features; and document solutions. The role includes mentorship, professional development, networking, and cross-functional internship activities.

Participate in a 10-week software engineering internship developing, testing, and deploying scalable enterprise applications. Interns collaborate in Agile teams, build APIs and microservices, support cloud and data engineering initiatives, and use approved AI-assisted development tools. Responsibilities include writing tests, reviewing AI-generated code, contributing to architecture and platform work, applying secure SDLC practices, and exploring AI/ML integrations while following regulatory and confidentiality requirements.

Lead cross-functional teams to design, build, and deliver scalable enterprise software and products. Own engagement relationships, product roadmaps, architecture (APIs, microservices), CI/CD and quality practices, project planning, and mentoring of junior staff to drive delivery and continuous improvement.

As a Software Engineer in Frontier AI Infrastructure, you'll design secure systems for the public sector, improve engineering standards, and collaborate with cross-functional teams to meet government requirements. You'll also participate in customer engagements and contribute to the product strategy while ensuring compliance with federal regulations.

Develop and maintain scalable SaaS solutions for financial reporting and capital markets customers. Responsibilities include full-stack development, system design, testing, monitoring, performance optimization, security, technical debt reduction, and collaboration with product managers, developers, and SRE teams. The role requires building reliable, secure, maintainable data-driven applications and contributing across the software development lifecycle.

Leads approximately 35 engineers across data engineering, integration engineering, and integration support. Owns delivery predictability, manager development, operational reliability, SLA performance, data platform modernization, integration scalability, and organizational clarity. Partners with product, data science, commercial, and delivery teams while overseeing healthcare integrations with EHR systems, enterprise data infrastructure, incident management, and client-facing reliability commitments.

Lead architecture and engineering for a new Provider Onboarding team. Build scalable, database-backed systems and custom tools supporting pricing, payments, client panels, and forms. Establish engineering practices, mentor senior engineers, guide cross-functional delivery, and oversee the full software development lifecycle from planning through post-launch maintenance. The role requires healthcare systems experience and ownership of complex, reliable products.

Lead architecture and development for a new Provider Onboarding engineering domain. Build scalable full-stack, database-backed applications and microservices supporting pricing, payments, client panels, forms, and provider workflows. Mentor engineers, establish design patterns, drive cross-functional delivery across the full software lifecycle, and improve operational reliability for a healthcare platform.

Lead the technical direction of Samsara’s shared geospatial platform. Build scalable data ingestion and processing pipelines, map data models, spatial APIs, map-matching and routing foundations, and reusable platform capabilities. Scale storage, querying, and computation for real-time features, consolidate team-specific solutions, mentor engineers, lead cross-team technical projects, and represent the company in the geospatial community.