Top Software Engineer Jobs in St. Louis, MO

Build and deploy full-stack enterprise product solutions for ElevenCreative customers. Work directly with enterprise clients to understand requirements, present solutions, and decide between bespoke integrations and broadly useful product improvements. Develop integrations, APIs, authentication, SSO, access controls, and other enterprise functionality while shipping independently with minimal direction. Experience with localization, TMS integrations, marketing tools, or adtech is advantageous.

Design, build, and own production-grade platform subsystems for Stacklok Enterprise, writing Go software that runs on customer Kubernetes environments. Collaborate with leadership, mentor engineers, support customer onboarding and troubleshooting, contribute to the open-source ToolHive project, and translate customer feedback into product improvements. The role also involves improving engineering workflows through AI-assisted development and owning platform areas from design through ongoing production operations.

Develop and maintain full-stack healthcare applications using C#, .NET, ASP.NET Core, JavaScript, and SQL Server. Design APIs, services, background jobs, database procedures, and responsive interfaces; troubleshoot across application and deployment layers; write automated tests; modernize legacy systems; build secure healthcare integrations; and protect sensitive data. Collaborate with product, QA, support, and implementation teams while participating in design reviews, code reviews, testing, and release validation.

Build custom n8n flows, API integrations, webhooks, and middleware to implement complex, code-level onboarding and orchestration for enterprise SaaS clients. Scope projects with sales, own end-to-end technical onboarding, QA, monitoring, and feed recurring needs back to Product. Act as a client-facing technical consultant, including onsite visits, and create reusable integration patterns.

Design and own backend infrastructure for a privacy-first AI memory platform. Responsibilities include multi-tier memory storage, secure multi-tenant isolation, real-time APIs, caching, LLM integrations, retrieval systems, synchronization, monitoring, deployment pipelines, and production reliability. The role requires close collaboration with ML engineering and product teams while owning architecture, infrastructure, testing, security, and operational troubleshooting.

Leads architecture, development, and operation of Python-based AWS backend and IoT services. Designs Lambda microservices, REST APIs, event-driven workflows, telemetry pipelines, databases, device communication, and infrastructure as code. Provides hands-on technical leadership through coding, design and code reviews, mentoring, cross-functional planning, security practices, testing, CI/CD, monitoring, incident response, and roadmap development.

Build and architect AI-powered software features that analyze contracts and fund documents, extract structured data, and automate legal workflows. Set technical direction, drive ambiguous initiatives from conception through production, improve engineering quality and tooling, and collaborate with product and design. Evaluate LLM systems, assess failure modes, and make strategic decisions about AI applications while mentoring and elevating other engineers.

Build and scale AI-powered web applications using Ruby on Rails and React. Develop full-stack features, prototypes, and LLM capabilities while independently owning projects from inception through delivery. Collaborate with stakeholders and cross-functional teams, iterate rapidly based on feedback, review AI-generated code, and make sound technical decisions with minimal guidance.

Develop and optimize Amazon Connect contact center solutions integrated with AWS and Salesforce. Responsibilities include architecting serverless infrastructure, creating Contact Flows, developing automation with CloudFormation or CDK, and implementing conversational AI using Lex, Bedrock, Nova 2 Sonic, Contact Lens, and Agentic CX Designer. The role also involves Salesforce customization, Apex and Lightning Web Component development, CI/CD, cross-functional collaboration, and occasional client-site travel.

Principal Engineer responsible for architecting, building, testing, deploying, and operating full-stack TypeScript applications. The role leads React and Next.js front ends, Node.js services, APIs, cloud infrastructure, integrations, databases, CI/CD, observability, security, and AI capabilities. It owns products end to end, establishes engineering standards, partners with creative and operations teams, and provides technical leadership on client projects. Strong autonomy, communication, architecture, and production operations skills are required.

Designs, develops, configures, and supports ServiceNow solutions across ITSM, ITOM, HRSD, SecOps, and CMDB. Responsibilities include scripting, workflow automation, REST/SOAP integrations, system upgrades, troubleshooting, documentation, requirements gathering, stakeholder demonstrations, and Agile delivery. The role also maintains platform stability and applies ServiceNow best practices.