Top Software Engineer Jobs in St. Louis, MO

Develop and maintain customized ServiceNow solutions, including advanced scripts, business rules, client scripts, and App Engine applications. Support legacy data migration, conduct testing, ensure data integrity, and troubleshoot implementation issues. The role requires strong JavaScript skills, ServiceNow certifications, Agile/Scrum experience, collaboration, independent work, U.S. citizenship, and an active security clearance with eligibility for DHS Public Trust.

Architect and deliver complex distributed systems using Azure cloud-native technologies, microservices, APIs, and event-driven patterns. Lead architecture reviews, reliability initiatives, performance optimization, incident response, and root-cause analysis. Drive adoption of AI-assisted development tools while maintaining security and code quality. Collaborate across engineering, DevOps, QA, and product teams, and mentor engineers on technical design, development practices, and AI-enabled workflows.

Build and ship frontend features for a financial marketplace using React and Next.js. Collaborate with product, design, and backend engineers; contribute to architecture, component design, code quality, tooling, and the shared component library. Own work from design through delivery, participate in pairing and code reviews, and use AI-assisted development tools thoughtfully.

Build and ship full-stack features for AHEAD’s Hatch and Unity platforms, owning work from user needs through design, implementation, testing, deployment, and support. Make architectural decisions, use AI development tools responsibly, lead code reviews, mentor engineers, collaborate with stakeholders, estimate work, manage technical risk, and help shape the engineering roadmap. The role uses Elixir and Phoenix while emphasizing adaptability, product thinking, software quality, security, and reliable delivery.

Develop and maintain full-stack product features, REST APIs, ERP integrations, and AI document-capture capabilities for NG and SMRTR TRAC. Work with Vue, TypeScript, Node.js, Scala, PostgreSQL, and MongoDB; improve reliability, performance, security, and test coverage. Translate customer and business requirements into software, estimate work, support production go-lives, troubleshoot issues, document solutions, and collaborate with engineering, sales, professional services, and customers.

Create and optimize high-quality, mobile-optimized character shaders and material workflows in Unity URP. Develop master materials, tools, and editor extensions (C#). Profile and debug performance on iOS/Android, collaborate with artists on look development, and ensure efficient rendering across mobile devices.

Design, architect, and ship reliable Flutter mobile applications used by delivery partners and logistics teams. Own solutions from operational problem discovery through adoption, including offline functionality, scanning, location tracking, backend integrations, and release quality. Work across the stack, apply AI capabilities, collaborate with operations and engineering teams, and mentor teammates while setting mobile technical direction and standards.

Seeking a web developer to build and maintain websites or web applications. The posting provides no additional details about responsibilities, qualifications, technologies, compensation, or work arrangements.

Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.

The Integration Engineer will design and maintain healthcare data integrations, collaborating with teams to optimize performance and improve reliability using Python and various standards.