Top Software Engineer Jobs in St. Louis, MO

Develop core backend components for a blockchain network, focusing on networking, reliability, scalability, and high-quality software practices.

The role involves building self-service platform services using Go, automating operational workflows, scaling Kubernetes, and ensuring reliability in cloud environments.

As a Software Engineering evaluator, you will curate code examples and evaluate AI-generated code for efficiency while collaborating with cross-functional teams to enhance AI-driven solutions.

The Software Engineer will contribute to the eLearning platform, work across full stack technologies including both legacy and modern systems, and engage in collaborative development processes following XP practices.

As a Software Engineer on the Segment team, you'll design, build, and scale APIs for customer data solutions, collaborate with cross-functional teams, and improve system reliability through coding and troubleshooting.

The Senior Software Engineer will enhance efficiency in procurement for the Department of War by developing web applications, managing technical delivery, and mentoring team members.

Work with senior engineers to design, build, and deploy full-stack solutions for public sector clients, focusing on secure identity solutions.

As a Software Engineer in the Tooling and Reliability Platforms team, you'll develop AI services, manage incident tools, and utilize Infrastructure as Code for high-availability systems. You'll focus on integrating AI workflows and improving operational resilience for Yahoo's brands.

Build and ship full‑stack web features end-to-end using React/TypeScript and Node.js. Partner with Product, Design, and Data to deliver reliable, well-tested software, set and uphold code quality, make technical decisions, and mentor others (at senior level). Own features from design through production and improve tooling, testing, and observability to increase team velocity.

Lead development of a new iOS mobile product: implement LiDAR/AR scanning, floor-plan rendering, offline-first sync with FastAPI backend, prototype visualizations, integrate backend/ML work, and own subsystems end-to-end on a small, fast-moving team using AI coding agents.

The role involves designing CLI and backend services, maintaining code quality, collaborating on technical issues, and writing documentation.

Join as an early founding full-stack engineer to architect, build, and deploy a scalable platform serving AI-driven voice applications. You will own frontend and backend development, design infrastructure with the CTO, and deliver reliable production systems for enterprise customers.

Join the Consumer Technology team to develop, maintain, and troubleshoot applications and test tools. Perform routine automation, white-box testing, code reviews, monitor automated processes, estimate tasks, communicate with product owners and users, and recommend improvements. Assist in training others and follow departmental methodologies.

Seeking a Mid Level Software Engineer to develop enterprise applications using Java, JavaScript, or Python, along with database design and micro-service architecture expertise.

Lead technical direction for software architecture and cross-team initiatives focusing on scaling consumer-facing systems and maximizing loan originations while maintaining compliance and system integrity.

Design and build agent-powered mission consoles, collaborate with stakeholders to improve user workflows, and maintain agentic workflows for mission outcomes.

As a Senior Software Engineer, you will design and build a cutting-edge identity search platform and implement AI systems for defense applications, working closely with cross-functional teams to enhance user workflows and support national security.

As a Senior Software Engineer, you'll design and develop scalable services for real-time pricing, collaborate with cross-functional teams, and ensure system reliability through testing and monitoring.

As a Software Engineer in Data Infrastructure, you will build and maintain high-performance data storage systems for AI training, collaborate with experts, and optimize data processing.

The AI Assisted Software Engineer will design and develop enterprise software solutions, utilizing AI-assisted tools, and architect scalable systems while collaborating across teams to improve business operations.

As a Software Engineer at Modelcode.ai, you will architect infrastructure for AI-driven code modernization, innovate solutions for complex legacy codebases, and lead technical initiatives while working across various technologies and programming languages.

The Software Engineer will design and develop the MobiFin Elite platform for Fintech solutions, ensuring compliance with business requirements while mentoring junior developers and enhancing application performance.

The Full-Stack Software Developer will manage end-to-end feature delivery including client engagement, GitHub management, CI/CD automation, solution design, full-stack development, API integration, and mentorship for junior developers.

Design and develop full-stack applications for controlling autonomous construction robots, including backend services and front-end interfaces. Collaborate in rapid deployment cycles.

The role involves designing and building AI-focused research tools, optimizing performance, engaging with customers, and scaling product features quickly.