Top Senior Software Engineer Jobs in St. Louis, MO

Design, develop, test, and maintain embedded application software for air-domain missions. Translate customer requirements into software architecture, perform unit/integration testing, support system integration and verification, participate in peer reviews, and produce software documentation while meeting safety, regulatory, and customer standards.

Design, develop, test, and maintain non-embedded software for the Tomahawk program. Translate requirements into software designs, implement features, troubleshoot issues, and document R&D. Ensure compliance with government and safety standards and support system integrations.

Design and develop Spectrum mobile applications and services using Java 17, Python, Spring Boot, microservices, Kafka, Redis, and ETL. Build real-time data pipelines, handle large datasets, integrate and warehouse data, provide architectural direction, create migration strategies and application roadmaps, and partner with stakeholders to ensure effective system integration and platform evolution.

Design, develop, test, and maintain full‑stack web applications, databases, and data processing tools to support fleet health and analytics. Collaborate with stakeholders, lead agile development efforts, troubleshoot issues, mentor junior engineers, and improve software processes and documentation in a mission‑critical aerospace environment.

The Software Engineer will develop, integrate, and maintain vehicle management system software, focusing on real-time embedded systems, while providing technical leadership and mentoring teammates.

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 and integrate C#/.NET and web-based software for the MQ-28 program using SAFe Agile. Document requirements and design, peer-review code, track work in Azure DevOps, investigate/resolve bugs, and support iteration and program increment planning.

The Software Engineer will enhance developer experience at Benchling by building production release tooling, improve workflows, and collaborate with teams to scale processes. Responsibilities include developing efficient development tools and championing engineering patterns.

The role involves leading application performance improvements across multiple platforms, focusing on measurable metrics and driving engineering standards and workflow optimization, using both hands-on coding and strategic influence.

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.

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

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.

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

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.

Design and re-architect the Identity systems at Dropbox to support multi-product capabilities, mentor junior engineers, and ensure software excellence.

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 Principal Software Engineer will define technical roadmaps, guide system architecture, mentor leaders, and drive product direction in Capital Supply operations.

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

Design and develop complex software solutions for the FedNow service, leveraging cloud technologies, Java, and Agile methodologies, ensuring high-quality and timely infrastructure support.

Lead and manage a team of software verification engineers to design, develop, and execute requirements-based test plans and automated test frameworks. Perform functional, performance, and safety verification, report defects, and support formal qualification testing. Coordinate with program management, systems engineers, and developers in an Agile, CI/CD-driven environment for defense flight systems.

Design, develop, test, and maintain non-embedded software for the Tomahawk program. Translate requirements into designs, implement features, troubleshoot issues, execute R&D tasks, and ensure compliance with government and safety standards.

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 Software Engineer responsible for software design and development for defense-related projects, mentoring junior engineers, and ensuring project alignment with requirements and standards.

Lead and verify software quality processes across program lifecycle, perform audits, plan and validate test activities, manage configuration and supplier software quality, drive corrective actions, support certification/verification, and report quality metrics to reduce risk and improve software integrity.