Top Software Engineer Jobs in St. Louis, MO

Develop and maintain full-stack web applications using React, TypeScript, Node.js, and NestJS. Build REST APIs, integrate relational databases and search platforms, and support CDC and streaming pipelines using Kafka, Debezium, Flink, and related technologies. Deploy cloud-native applications on Kubernetes/OpenShift through Helm and GitOps workflows. Contribute to automated testing, OpenSearch optimization, semantic search, data enrichment, observability, and Agile enterprise product development.

Leads the design, development, deployment, and support of Amazon Connect healthcare contact center solutions. Builds contact flows, IVR, routing, conversational AI, serverless integrations, automation, monitoring, and production support capabilities using AWS services. Partners with healthcare, compliance, QA, operations, and business teams to deliver secure, HIPAA-aligned solutions. Responsibilities include legacy platform migration, incident response, root cause analysis, CI/CD, infrastructure as code, documentation, mentoring, and technical leadership.

Develop and maintain SAP ABAP solutions for the client. The role requires at least five years of ABAP development experience. Oil and gas industry experience is a strong advantage. The position is full-time and located in Clayton, Missouri.

Contribute to the development, testing, deployment, and modernization of mission-critical TRAC2ES software within an Agile/Scrum team. Participate in Scrum ceremonies, deliver secure and scalable software increments, resolve defects, support demonstrations and feedback loops, and document technical debt and requirements. The role uses JavaScript, Node.js, React, SQL, APIs, cloud-native technologies, Docker, CI/CD, source control, and automated testing.

Lead CICS systems engineer responsible for CICS engineering, maintenance, performance tuning, debugging and dump analysis in a 24x7 Sysplex/CICSPlex environment. Interface with developers and operations, perform upgrades and SMP/E maintenance, monitor with Sysview/CICS tools, support WebSphere MQ and COBOL applications, and provide on-call support to resolve production issues.

Lead and mentor a development team to design, build, test, and deploy end-to-end web applications using the Microsoft stack. Collaborate cross-functionally to translate business needs into technical solutions, conduct code reviews, research emerging technologies, execute test plans, and uphold coding standards while following agile SDLC practices.

Designs, develops, tests, documents, debugs, and implements B2B/EDI applications and integrations. Builds highly available runtime environments, establishes technical standards and processes, resolves technical support issues, and communicates solutions to business and technical teams. Requires advanced WTX/Mercator programming, UNIX/Linux expertise, and knowledge of B2B integration concepts and electronic data formats including X12 EDI, XML, NCPDP, and HIPAA.

The C# Developer will design, develop, and support IT solutions using various technologies, ensuring feasibility and leading project initiatives during the software development life cycle.

We are seeking .NET Developers with a minimum of 3 years of experience in VB.NET, C#, and SQL, familiar with ASP.NET and front-end tools like HTML, CSS, and JavaScript for long-term contracts.

Seeking a Senior Web Engineer to develop custom web and mobile applications, collaborate with UX designers, and solve technical problems. Must have a passion for coding and continuous learning.