Top Software Engineer Jobs in St. Louis, MO

Design and implement scalable frontend solutions using JavaScript/TypeScript and React. Drive architecture discussions, ship features with minimal guidance, maintain code quality and styling standards, collaborate across agile teams, ensure performance and scalability, and manage end-to-end feature lifecycles in a fast-moving environment.

The Full Stack Software Dev Engineer II is responsible for designing, building, and operating scalable full stack systems, ensuring reliability and security, and collaborating with AI tools to enhance development processes.

Join an early engineering hire at a growing SaaS platform for online communities. Scope and deliver new features, write modular TypeScript/React code, enable AI coding agents, monitor production, and troubleshoot issues while influencing product direction and improving platform scalability and developer experience.

Design, develop, and maintain backend services for the Leap quantum-classical hybrid cloud platform. Collaborate with product owners and architects across the SDLC to deliver features, troubleshoot and tune production systems, write clean maintainable code, participate in code reviews and on-call rotation, and mentor junior engineers to improve engineering practices and platform scalability.

Design and own AI-agent-driven test workflows and the automated verification framework. Build test context, select models and tooling, validate AI-generated code and tests, operate test automation across UI/API/mobile/data, ensure security and compliance, mentor teams, and continuously improve agent orchestration and observability.

Develop, test, and improve the OT Security Platform as part of the Microsegmentation Product Team, ensuring high-quality software and architecture.

Lead the development of high-performance software systems, mentor junior engineers, and contribute to technology strategy while ensuring scalable and maintainable solutions.

The Senior Software Engineer will design, build, and maintain CI/CD pipelines, improve automation workflows, and mentor junior engineers in a security-focused development environment.

The role involves designing and optimizing LiveKit's media pipeline, building distributed systems for media ingestion and export, and shaping technical direction across products, ensuring high quality and operational excellence.

As a Senior Backend Engineer, you will design scalable backend systems, build APIs, collaborate across teams, and contribute to engineering best practices to enhance product performance.

Design and maintain backend services for AuthZed Cloud's control plane, focusing on Kubernetes systems and secure authentication. Collaborate with teams for system reliability and incident resolution.

As a Full-Stack Engineer, you'll design and build AI-powered applications, develop front-end interfaces, and scalable back-end services for enterprise users while collaborating with research and product teams.

The Software Development Engineer II will develop navigation solutions, balance rapid development with reliability, and optimize performance while promoting operational excellence at Mapbox.

The Lead Software Engineer will lead the design and development of enterprise solutions using Microsoft Dynamics 365 and Power Platform, oversee engineering practices, mentor team members, and collaborate with stakeholders for effective delivery and alignment.

The Senior Backend Engineer will design and build backend systems for a multi-cloud platform, ensuring performance, scalability, and high quality while collaborating with various teams and stakeholders.

The role involves designing and improving media pipelines for LiveKit's voice technologies, handling media ingestion, exporting sessions, and optimizing performance across diverse formats and codecs.

The Senior Software Engineer will work on full-stack deliverables, manage support tickets, and enhance the tech stack for improved efficiency, focusing on analytics and automation in OOH advertising.

Join Docker's IAM team as a Senior Software Engineer to design and operate backend identity services focusing on authentication, authorization, and security for millions of developers. You'll lead projects, mentor teammates, and evolve Docker's identity model in a remote-first global environment.

The Senior Software Developer will design and develop web and mobile applications, collaborate with scientists, implement APIs, and mentor developers.

Design and implement AI-powered educational software, focusing on generative AI systems, mentor peers, and ensure scalable, secure architecture.

As a Senior Software Engineer II, you will design and deliver backend systems and APIs, lead complex projects, maintain full-stack product features, and provide technical leadership while collaborating cross-functionally.

The Senior Software Development Engineer will modernize a healthcare payer application using .NET and Angular, integrate AI models, and mentor junior engineers while working independently on complex tasks.

As a Senior DevOps Engineer at Scribe, you will design and optimize AWS cloud infrastructure, manage CI/CD pipelines, and support product development while ensuring reliability and performance of services.

Build and maintain full-stack Finance and Business Systems with Ruby on Rails. Own architecture, coding, automated tests, DB tuning, deployments, and production support. Partner with Finance, Operations, and Engineering to create auditable, correct, and actionable unit-economics instrumentation. Participate in on-call rotation, hiring, and documentation.

Lead technical initiatives for a stream-aligned engineering team: design and implement scalable, resilient microservice-based systems, build and maintain JSON APIs, apply DDD and best practices, mentor mid-level engineers, collaborate with product and stakeholders, and evaluate new technologies to support business goals.