Top Senior Software Engineer Jobs in St. Louis, MO

The Software Engineer II will develop backend services and APIs while also contributing to frontend React components, focusing on digital services for federal clients.

Design and implement custom SharePoint solutions, including web parts and integrations, while optimizing platform performance and collaborating with stakeholders.

As a Software Engineer in AI Infrastructure, you will design and develop core platform components, build APIs and services, enhance performance, and automate tooling while collaborating across teams and improving system reliability.

The Senior Back-End Software Engineer designs, develops, and maintains scalable backend systems while taking ownership of the software development lifecycle.

As a Senior Full-Stack Engineer, design and build scalable UI systems, own features end-to-end, collaborate on API design, and ensure production quality.

Design and build high-throughput database integrations and data-intensive systems. Ensure end-to-end reliability, debug production issues, improve tooling and observability, participate in on-call rotation, collaborate with customers and cross-functional teams, and drive product and open-source innovation.

The Software Engineer will manage data collection, optimize cloud infrastructure for data ingestion, and collaborate with AI researchers to enhance datasets for model training.

Lead architecture and implementation of software for autonomous UAS systems; mentor engineers; ensure compliance with aerospace standards; optimize CI/CD pipelines.

As a Senior Frontend Software Engineer, you'll design and develop high-performance, data-intensive applications, optimizing user experiences while collaborating with team members to enhance application quality and performance.

As a mid-level Software Engineer, you'll deliver Python-based platform features, collaborate with teams, and maintain system reliability and scalability.

Drive the Continuous Integration team, ensuring build systems' reliability and scalability, and mentor CI engineers while improving developer productivity through automation and tooling.

The Senior Full-Stack Software Engineer will design backend services in .NET, develop UIs in React/Angular, integrate systems, and manage CI/CD pipelines.

Develop core services using Golang and PostgreSQL, resolve issues, write tests, and collaborate with cross-functional teams to enhance the pre-sales module for life insurance offerings.

The role involves building and managing scalable distributed systems for Twilio's email platform, mentoring junior members, and improving system performance and security.

As a Senior Frontend Software Engineer, you'll lead the development of major features using React and TypeScript, ensuring performance and integration with backend systems. You'll also manage releases, improve team efficiency, and contribute to a customer-centric product experience.

As a Senior Backend Software Engineer at Archy, you will lead major product updates, ensuring system stability and scalability, while collaborating with cross-functional teams to enhance dental practice management solutions.

The Staff Backend Software Engineer will lead the design and architecture of the backend systems, manage the delivery of product updates, and integrate AI tools to enhance the platform's functionality and performance.

As a Staff Software Engineer, you will design and implement backend services, write primarily in Scala, and improve product architecture in collaboration with teams.

The Senior Full Stack Software Engineer will oversee technical development in a B2B SaaS healthcare environment, mentor junior engineers, and lead product features.

The Senior Back-End Software Engineer will design and implement a serverless platform, work closely with the product team, and own entire projects, driving innovation in telehealth.

Owner of the asset discovery experience across tokens, perpetuals, and prediction markets. Design, build, and scale features for web, mobile, and browser extension platforms. Lead initiatives to add blockchain support and new products, interface with users and developers for feedback, and help grow and hire a high-performing Discovery team.

As a Senior Mobile Engineer, you will develop high-performance mobile features using React Native and TypeScript, collaborating closely with designers and engineers to enhance user experiences.

Design, develop, and maintain Java-based backend services and APIs for KeeperApp. Own backend components, optimize MySQL schemas/queries, ensure performance and reliability, apply secure coding practices, participate in code reviews, and collaborate with product and engineering teams to deliver features iteratively.

Design, build, and maintain scalable React/TypeScript web applications for Keeper's Admin Console. Integrate with backend REST APIs, implement enterprise UI workflows (RBAC, policy config, audit views), ensure secure, well-tested frontend code, participate in architecture and code reviews, troubleshoot performance and usability, and maintain documentation.

Design and build platforms for new products, develop generative AI features, ensure system reliability, and foster a collaborative culture in a startup environment.