Top Software Engineer Jobs in St. Louis, MO

As a Backend Engineer, you will design and implement core infrastructure for Vannevar's platform, ensuring standards for data processing, security compliance, and performance. You will collaborate with various teams to enhance shared infrastructure and lead technical initiatives.

The Lead Software Engineer will design, develop, and maintain embedded software for defense systems, ensuring compliance with standards and coordinating project management functions.

Lead engineering team to design, analyze, test, and certify aircraft software per FAA standards (DO-178B/C). Act as FAA liaison, oversee technical documentation for certification, mentor staff, resolve complex engineering issues, and ensure on-time delivery of safety-critical certification milestones.

The Software Engineer will design, develop, and operate applications while collaborating in a distributed team to improve software solutions and support integration across systems.

The Software Engineer will lead engineering decisions for the macOS app, write production-quality code, evolve app architecture, and collaborate cross-functionally.

The Software Engineer will develop cloud-native solutions, manage teams, ensure compliance with software development guidelines, and lead project documentation.

Lead a team to design and maintain secure software development environments, implementing DevSecOps practices and mentoring early-career employees.

The Software Engineer/Senior Software Engineer will design, develop, and maintain high-quality software and automated test systems, engaging in technical discussions and ensuring application performance and reliability.

As a Software Developer, you'll design, develop, test, and deploy software solutions in an Agile environment, focusing on geospatial applications and infrastructure problems.

Design, build, and operate scalable Salesforce CRM and billing solutions (Apex, LWC, Flows). Deliver end-to-end features, integrate Salesforce with external systems, ensure reliability and security, support production (on-call), document runbooks, and mentor junior engineers while partnering with cross-functional stakeholders.

Lead system-level integration, verification, and validation of software/hardware mission systems using DevSecOps, CI/CD, containerized deployments, and cloud-native test environments. Develop and maintain requirements and traceability, define test strategies and acceptance criteria, analyze results, drive corrective actions, and mentor junior engineers. Ensure interoperability, performance, and mission assurance in secure DoD environments.

Lead and coordinate OFP software teams and integration activities while owning Cost Account Management. Oversee budgets, EVM metrics (CPI, SPI, ETC, EAC), forecasts, and variance corrective actions. Collaborate with systems engineering, test, QA, and supply chain to deliver embedded/flight software on schedule and within scope, and mentor junior engineers.

Develop and enhance infrastructure using Rust and C++, ensuring high-performance applications with a focus on memory safety and concurrency.

As a Software Engineer for the ARC team, you'll design and implement secure backend systems, manage model inference layers, improve engineering standards, and collaborate with teams to meet government agency needs.

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.

The Software Engineer will analyze, design, code, test, and modify software products, focusing on Unifier and OPPM platforms, and collaborate on integration solutions in an agile environment.

As a Senior Backend Engineer, you'll design and build distributed systems for the Retail Cash team, ensuring performance, accuracy, and availability of cash operations.

The Senior Software Engineer, Voice AI will enhance the Voice AI stack, design cutting-edge solutions, boost product quality, and drive collaboration across teams to improve user experiences.

The Principal Software Engineer will set technical direction, own cross-team initiatives, evolve platform architecture, and lead experimentation efforts while mentoring others in the Personal Loans team.

Lead technical strategy for Dropbox's core systems and AI integration, drive technical outcomes, and influence multiple teams. Involve hands-on software development and architecture for scalable products.

As a Senior Software Engineer on the PMI team, you'll design and develop backend systems, collaborate on API lifecycle, support team operations, and engage in team growth activities.

The Senior Software Engineer will build core infrastructure for multi-agent orchestration, design reliable backend services, and handle system architecture for scale and resilience. Responsibilities include collaborating with teams, defining platform primitives, and driving technical decisions in an evolving environment.

Lead the technical vision for Android experiences, design scalable solutions, partner with product teams, and drive engineering excellence while mentoring others.

As a Principal Software Engineer, you will design, develop, and implement complex software solutions, lead projects, and ensure compliance with standards in a cloud-first environment.

The Senior Full-Stack Software Engineer will design, build, and scale SaaS products, improve application performance, and lead technical initiatives. Responsibilities include modernizing web applications, contributing to backend services, and mentoring other engineers.