Top Senior Software Engineer Jobs in St. Louis, MO

The Back-End Software Engineer at Boeing will lead the development of prototypes and production-level web applications, focusing on APIs, data processing, and system architecture while mentoring team members.

Develop innovative infrared management and mission planning software, manage the software development lifecycle, lead junior engineers, and adapt to new technologies.

Develop and maintain Vehicle Management System software, ensuring flight and subsystem control, while providing technical leadership and support throughout the software lifecycle.

Manage clusters, develop with Golang, provision infrastructure with Terraform, and enhance performance of the platform handling untrusted code.

As a Principal Mobile Software Engineer, you'll lead mobile platform development, scale React Native architecture, mentor engineers, and collaborate across teams to build impactful features.

As a Software Engineer Sr, you will design, test, and maintain software solutions, focusing on quality assurance and manual/automated testing within PNC's technology team.

The Software Engineer Principal leads the design and development of large-scale systems, mentoring teams and driving architecture decisions while ensuring compliance with best practices and security standards.

Seeking a Software Engineer/Senior Software Engineer to design, develop, and deliver quality backend services and APIs using Go, with emphasis on Kubernetes and cloud services.

The Software Engineer will engage in the design, development, testing, and maintenance of software for the Tomahawk program, ensuring compliance with regulations and addressing user inquiries.

Develop and enhance features within the Subscriptions Backend, ensuring system stability and observability, and leading architectural decisions.

Design and implement CIAM backend services for authentication and authorization. Integrate identity systems, manage secure flows, and automate infrastructure.

Lead the design and implementation of features for chemistry solutions, ensuring high code quality, scalability, and mentor junior engineers while collaborating across teams.

As a Billing & Analytics Software Engineer, you'll design and maintain the billing pipeline, integrate billing systems, and develop customer-facing analytics dashboards to support revenue recognition and operational observability.

The role involves developing the BLE implementation on mobile products, collaborating with cross-functional teams, mentoring junior developers, and ensuring high-quality code delivery in a fast-paced environment.

Design, maintain, and evolve core backend systems and APIs. Collaborate with product teams to create durable and reusable systems while enhancing performance and security.

Lead the software group in automation testing, CI/CD pipeline development, and software methodology. Manage projects and collaborate with teams to solve complex problems.

The Full Stack Software Engineer will design, develop, and maintain AI-powered applications, collaborating with cross-functional teams to create seamless user experiences.

Build enterprise-grade authentication, authorization, and identity features across the full stack. Design and implement RBAC, provisioning (SCIM), SSO/OAuth integrations, secure public APIs, and admin workflows for auditing and compliance. Own end-to-end product changes, collaborate on architecture, and mentor engineers to deliver scalable, reliable systems for enterprise customers.

As a Staff UI Software Engineer, you will lead the design and architecture of the Basis application, mentoring others and driving large-scale projects while enhancing UI performance and quality.

The role involves leading projects as a full-stack engineer, focusing on SaaS products, enhancing user experiences, and building accessible software.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Lead the evolution of the frontend platform, design complex user interfaces, provide technical leadership, and optimize CI/CD infrastructure for a scalable experience.

Lead the design and implementation of scalable monetization systems while mentoring engineers and driving technical strategy for revenue growth.

As a Software Engineer at Vercel, you will enhance and improve the CDN's performance, analyze web latency, and support a team of developers working primarily in Lua.

As a Senior Full-Stack and Platform Software Engineer at mabl, you will develop features for an AI-powered test automation platform, enhancing user experiences, designing APIs, and optimizing data pipelines while collaborating with cross-functional teams.