Top Senior Golang Jobs in St. Louis, MO

Senior Software Engineer responsible for developing and maintaining web applications and microservices (React, Golang). Mentor team members, lead code reviews, influence technical decisions, improve CI/CD and testing strategies (unit, E2E, performance), collaborate across teams on integrations, and promote engineering best practices and documentation.

Design, develop, and maintain scalable backend services in Golang. Build and consume REST APIs and microservices in cloud environments, collaborate with cross-functional teams, debug and optimize performance, and participate in code reviews and best-practice adoption.

Leads the design, development, testing, debugging, and implementation of scalable software applications. Collaborates with product, design, and engineering stakeholders, conducts code reviews, mentors engineers, resolves performance issues, and improves development processes. The role requires proficiency in multiple programming languages, software testing, AI-assisted code generation, and preferably healthcare compliance, full-stack technologies, GraphQL, REST APIs, NoSQL, AWS, and infrastructure as code.

Design and maintain Golang backend services, APIs, microservices, automation tools, and Terraform infrastructure modules. Provision and manage cloud resources, troubleshoot application and deployment issues, and improve reliability and performance. Participate across the software development lifecycle, review code and infrastructure configurations, collaborate with technical teams, and communicate project risks. Use AI tools such as Claude, mentor colleagues, and contribute to client-focused technical solutions.

Design and build Go-based control-plane services, CSI drivers, storage integrations, observability tools, and infrastructure automation for Kubernetes AI platforms. Integrate enterprise and scale-out storage, support bare-metal and hybrid provisioning, and deliver declarative Terraform/OpenTofu and GitOps workflows. Architect reliable storage solutions for Kubernetes clusters, air-gapped environments, and sovereign infrastructure, including artifact mirrors and PKI/TLS.

The Senior Software Engineer will modernize USPS shipping technology, refactor legacy systems for cloud integration, and develop high-performance services using Go, while collaborating with teams and addressing production challenges.

Design and build scalable distributed backend systems in Golang using PostgreSQL and Redis. Architect highly available services across microservices, networking, and cloud platforms; prototype and productionize platform capabilities and internal tooling; collaborate with CTO leadership on strategic initiatives; and influence engineering standards. The role focuses on greenfield AI infrastructure, developer tooling, performance, reliability, and systems operating at scale.

Design, build, and optimize high-throughput, highly available backend services in Golang for 24/7 sports and prediction-market applications. Lead architecture decisions, implement features, diagnose and resolve high-concurrency bottlenecks, and provide high-tier operational support for real-time transactional systems.

Lead the backend team, setting technical direction for a scalable platform, designing distributed systems in Golang, and mentoring engineers.