Top Senior Software Engineer Jobs in St. Louis, MO

As a Backend Software Engineer, you'll design, develop, and optimize scalable backend platforms and services while collaborating with cross-functional teams.

Develop and improve real-time drone tele-operations features, cloud-based products, and quickly prototype new front-end experiences while transitioning to a new tech stack.

Develop and deploy life-saving technologies as a fullstack engineer, focusing on web applications for public safety, collaborating with various engineering disciplines and leveraging customer feedback.

As a Software Engineer at OnePay, you will develop and implement features, build scalable products, and work closely with teams to enhance customer experiences.

Design and develop full-stack applications and distributed systems, utilizing Python, Go, React, and Kubernetes while contributing to architectural decisions and rapidly prototyping new capabilities.

The Full Stack SDET will design, build, and validate high-quality software solutions, focusing on automation and quality assurance throughout the software development lifecycle.

Design and ship AI-powered features for Axios HQ, build and maintain the product, ensure high-quality code, and integrate LLM applications.

Design, develop, and maintain secure, scalable full-stack web applications across backend, APIs, and frontend. Collaborate with product and design, perform code reviews, mentor engineers, troubleshoot complex issues, and drive continuous improvement and AI-enabled solutions throughout the SDLC.

Seeking a Senior Software Engineer experienced in C++ and embedded systems for defense projects, requiring on-site presence and U.S. citizenship.

The Senior Software Engineer will lead technical strategies, build AI-driven software systems, mentor junior engineers, and ensure security best practices.

Design and develop high-scale applications, manage project priorities, implement modern development practices, and collaborate in a global engineering team while troubleshooting and improving software solutions.

Lead architecture and implementation of a new frontend platform, define org-wide frontend best practices, mentor engineers, collaborate with product/design/backend, operationalize tools and CI/CD, drive cross-team initiatives, and ensure high-performance, maintainable, and accessible frontend systems.

As a Senior Backend Engineer, you'll develop and enhance authentication strategies, improve access management, and ensure security for GitLab users, focusing on scalable solutions.

As a Senior Software Engineer, you will develop and enhance core software libraries, maintain APIs, lead projects, and mentor junior engineers while collaborating in an Agile environment.

Develop and enhance MAAS core components, improve architecture, collaborate across teams, and ensure high standards in documentation and CI practices.

Design, develop, and maintain mobile applications in Kotlin, ensuring healthcare compliance, collaborating with teams, and mentoring others.

The Senior Software Engineer will design, build, and maintain services for Cadence's remote patient monitoring platform, collaborating with product owners and internal stakeholders in a fast-paced environment.

Lead design, build, and scale real-time streaming infrastructure and data pipelines; collaborate with product and analytics; ensure operational availability and monitoring; set code and design standards; mentor engineers and drive delivery of quarterly goals.

As a Senior Software Engineer at Vanta, you will lead technical projects, mentor team members, and build scalable infrastructure for the monetization platform, ensuring integration with business systems and transaction consistency.

The Senior Software Engineer role involves developing enterprise applications using Java, JavaScript, or Python, managing databases, and providing support for geospatial information systems, among other responsibilities.

The role involves building and operating ngrok's core gateway infrastructure, ensuring secure and efficient traffic routing, and debugging distributed systems in production environments.

The Software Engineer will build and maintain internal support tooling, collaborating with various teams to design automations, dashboards, and integrations, ensuring operational efficiency and reliability.

As an SDK Software Engineer, you will develop and maintain AI SDKs, collaborate with teams, and contribute to open-source projects.

The Software Engineer will build features across the stack, design AI/LLM-driven workflows, translate requirements, and collaborate closely with the founding team and customers.

As a Senior Software Engineer at Desmos, you'll develop innovative math tools, lead projects, and collaborate across teams to enhance user experiences.