Top Software Engineer Jobs in St. Louis, MO

Develop and maintain backend services using Java, JavaScript, and Python; support secure DevSecOps practices, containerized applications, AWS deployments, geospatial data processing, testing, documentation, and Agile collaboration under senior developer supervision.

Develop and maintain Java and Spring-based applications, Angular front ends, REST services, microservices, SQL integrations, and loyalty platform components. Participate in Agile planning, design, coding, documentation, testing, estimation, mentoring, and process improvement. Work with cloud platforms, message queues, Docker, Kubernetes, and build management tools while collaborating with product teams and third parties.

Develop and deliver scalable Salesforce solutions using Apex, Lightning Web Components, Visualforce, Flow, and OmniStudio. Responsibilities include requirements analysis, integrations, testing, deployment, debugging, code reviews, source control, and full software development lifecycle participation. The role also provides technical mentorship, collaborates with cross-functional teams, and supports public-sector mission applications.

Develop scalable Guidewire ClaimCenter solutions for property and casualty insurance claims. Design architecture, write and review code, build integrations, create proof of concepts, improve development processes, and troubleshoot InsuranceSuite issues. Collaborate with engineering and product stakeholders while providing technical guidance without formal people management. Work across Java, Spring Boot, AWS, REST APIs, microservices, databases, messaging, and Guidewire configuration.

Build and maintain full-stack CRM and B2B e-commerce features across front end, back end, and database layers. Design integrations with ERP systems and external partners using APIs, data pipelines, and file exchanges. Modernize legacy code, prototype AI and agentic capabilities, contribute to architecture, collaborate with business and technical stakeholders, conduct code reviews, mentor engineers, and deliver secure, well-tested solutions.

Develop, maintain, and improve enterprise software and databases for a geospatial-intelligence modernization initiative. The role involves full-stack development, microservices, APIs, containerization, test-driven development, CI/CD, and cloud-native development in secure cloud environments. This is an on-site position supporting a federal government customer in St. Louis, Missouri, and requires Top Secret/SCI clearance and U.S. citizenship.

Develop and implement Salesforce applications using Apex, Lightning Components, and Visualforce. Translate business requirements into scalable CRM solutions, integrations, and releases. Troubleshoot, test, and maintain application security. Create and support Tableau dashboards, reports, visualizations, and server or cloud deployments. Collaborate with business analysts, administrators, and technical teams while assisting with development estimates and schedules.

Develops and maintains ServiceNow ITSM applications, workflows, integrations, Service Catalog, and CMDB capabilities. Leads sprint development, testing, demonstrations, UAT, stakeholder acceptance, secure coding, release documentation, and platform change processes. Implements customer-confirmed ticket closure workflows, supports Service Portal and analytics integrations, mentors developers and testers, and maintains technical standards. The hybrid Quantico role supports a government IT program and requires active Secret clearance, U.S. citizenship, and up to 10% travel.

Develop responsive front-end interfaces for an ERP system using JavaScript, React.js, HTML, and CSS. Integrate RESTful APIs with PostgreSQL backends, translate UI designs into functional applications, support API contracts and testing, collaborate on CI/CD and containerized environments, document technical work, and maintain reusable components and libraries.

Participate in the full software development lifecycle for high-performance, low-latency financial data processing applications. Responsibilities include software design, development, testing, secure coding, version control, adopting new technologies, and completing projects collaboratively. The intern will work with Python, C, C++, Linux, GitLab, Jenkins, Artifactory, Jira, Agile, and CI/CD practices in a hybrid St. Louis environment.