Top Software Engineer Jobs in St. Louis, MO

Develop and maintain cloud-based healthcare revenue-cycle software, build new features, modernize applications, perform code reviews and automated testing, address security vulnerabilities, troubleshoot production issues, and improve system performance. Collaborate with developers, product owners, support teams, and project leadership while applying Agile, CI/CD, TDD, and software development best practices.

Lead fraud decisioning engineering initiatives by architecting, building, launching, and maintaining complex backend systems. Drive cross-functional projects from definition through monitoring, write high-quality and resilient code, review technical work, mentor engineers, collaborate with Product, ML, Analytics, and Business teams, and contribute to hiring and interview design.

Build and ship full-stack fulfillment features covering refunds, replacements, reverse logistics, and servicing. Own features from design through deployment, release, and monitoring while developing scalable event-driven and AI-native applications. Build single-page applications, collaborate with designers and cross-functional teams, apply sound API and data modeling practices, and deliver AI/agentic features safely in production. Identify technical investments, communicate tradeoffs, and work independently through ambiguous problems.

Designs and delivers software automating AKS cluster provisioning, upgrades, and management on Azure Local. Owns features through production, makes architectural decisions, mentors engineers, and improves reliability, security, observability, performance, and operational consistency. The role involves distributed systems, networking, virtualization, Kubernetes lifecycle management, on-call support, and collaboration across Azure teams and stakeholders.

Develop and maintain high-volume, low-latency Java applications across the full software development lifecycle. Design, test, debug, and analyze software; resolve technical issues; identify infrastructure improvements; and contribute to architectural reviews. The role requires cloud development experience, clean coding and test-driven development practices, strong communication with cross-functional partners, and the ability to align technical work with business objectives.

Develop and integrate software, algorithms, and data-processing pipelines for remote sensing, SAR, RF, radar, and geospatial systems. Responsibilities include architecture, backend and API development, workflow orchestration, sensor-data analysis, system integration, testing, optimization, deployment, and technical documentation. Collaborate across software, systems, data science, and intelligence disciplines while providing technical leadership on complex projects.

Build and scale SmartAsset’s web platform and content management systems across front-end and back-end services. Collaborate with product teams, stakeholders, senior engineers, and architects in an Agile Scrum environment. Contribute to technical design, architecture, roadmap execution, process improvement, risk mitigation, mentoring, and reliable operation of remote web products.

Leads a software support team responsible for production reliability, defect triage, code maintenance, deployments, vulnerability remediation, testing, and operational response. Develops and reviews code, coordinates Agile delivery, monitors production concerns, communicates risks, and partners with engineering, infrastructure, IT, QA, product, and customer experience teams to maintain secure, supportable digital learning applications.

Build and enhance a real-time LLM-powered healthcare platform across the stack. Develop features including onboarding, note customization, and in-the-moment clinical insights. Collaborate with product, design, clinical experts, and go-to-market teams to deliver scalable AI-first applications. Work directly with healthcare providers and contribute to robust engineering practices in a fast-paced startup environment.

Design, develop, and maintain scalable backend services and APIs (Node.js, Firebase). Optimize performance, ensure code quality via reviews and unit tests, debug and upgrade systems, and contribute to frontend work as needed. Stay current on backend and Gen AI integrations and collaborate across the team.

Lead architectural modernization of enterprise .NET applications into cloud-native microservices. Define technical strategy, cloud architecture (AWS/GCP), DevSecOps/CI-CD, mentor engineers, drive API-first and front-end modernization, and align technology with business goals.

Leads architecture and development of scalable, high-availability software systems supporting millions of endpoints. Owns complex multi-team initiatives, makes technical decisions, mentors engineers, establishes engineering standards, and improves software quality. Requires deep Java development, distributed systems, API design, database engineering, system scalability, testing, and AI-assisted development experience.

Build and own Arcadia’s internal developer platform across a large-scale data lakehouse and Kubernetes applications. Develop self-service APIs, templates, golden paths, CI/CD capabilities, observability, security controls, and reliability practices. Lead platform migrations, improve developer experience, manage stakeholder needs and costs, set technical direction, and coach senior engineers. The role requires hands-on software development alongside expertise in cloud infrastructure, Kubernetes, networking, infrastructure as code, SLOs, incident response, and platform product management.

Build and own end-to-end technical solutions for strategic customers, including architectures, product features, and full-scale integrations. Collaborate with customer engineers and executives, apply Python and software development expertise to solve complex problems, and communicate technical concepts clearly. The role is remote-first in the United States with regular travel to customer onsite engagements.

Build and operate backend systems for securities lending, short borrowing, clearing, settlement, and brokerage operations. Own projects from scoping through production, develop partner APIs and batch pipelines, improve system scalability and reliability, integrate with external partners, and participate in on-call support. The role requires strong distributed-systems fundamentals and interest in securities finance and market infrastructure.

The Software Engineer will build and own features for the AI-driven matching and screening platform, focusing on data structuring and full-stack development. Collaboration with users and maintaining high quality through testing is essential.

Design, develop, test, deploy, and support enterprise full-stack applications using React, Java/Spring Boot, and Python. Build secure APIs, microservices, integrations, chatbot interfaces, and cloud-native solutions. Work with Azure or AWS, Docker, Kubernetes, CI/CD pipelines, databases, messaging systems, and enterprise security practices. Collaborate in agile teams, participate in architecture discussions, refine requirements, conduct code reviews, and maintain quality through automated testing. Experience integrating AI or generative AI solutions is preferred.

Develop and support full-stack enterprise applications for legal operations, matter management, document management, compliance, and business process automation. Build React frontends, Java and Spring Boot microservices, REST APIs, event-driven integrations, and cloud-native solutions. Work with databases, Docker, Kubernetes, Azure, AWS, CI/CD, monitoring, security, production support, and Agile delivery while collaborating with legal, compliance, product, architecture, and engineering teams.

Build and scale backend-focused systems supporting truckload freight operations, including high-volume carrier quotes, automated transactions, distributed services, and APIs. Design scalable data models and architectures, contribute across the React and TypeScript stack, make key technical decisions, mentor engineers, and collaborate with product leadership. The role also involves developing AI-powered logistics tools and maintaining reliable, secure infrastructure on Kubernetes and GCP.

Join Azure PostgreSQL to design, implement, and test features in a relational database engine (query processing, logging, storage, IO, scale-out). Collaborate with stakeholders, write maintainable code, define test plans, operate live services (on-call), and contribute to open-source PostgreSQL and Linux.

Build and maintain full-stack features for secure, high-volume fintech and cryptocurrency transactions. Develop Golang and Java backend services, Node.js and TypeScript APIs, and React/Next.js applications. Integrate third-party systems, implement OAuth 2.0 authentication, work with microservices, and ensure security, performance, reliability, and observability. Contribute to architecture discussions, code reviews, technical documentation, and end-to-end feature ownership in a fully remote environment.

Design, build, and operate highly available, high-throughput backend services for Twilio SendGrid. Modernize Go-based microservices, manage dual-cloud AWS/Azure infrastructure with Terraform, improve observability and reliability, mentor engineers, and balance feature delivery with platform refactoring.

Develop, test, troubleshoot, and support high-volume software applications in an Agile environment. Collaborate with architects, product teams, customers, and engineers throughout the software development lifecycle. Participate in design and code reviews, automated testing, production monitoring, security and privacy practices, and root-cause analysis. Use approved AI-assisted development tools responsibly across coding, testing, debugging, documentation, and delivery while maintaining accountability for software quality, reliability, performance, and maintainability.

Build and maintain full-stack web applications, interactive dashboards, backend integration services, resilient APIs, and data visualizations. Integrate relational and NoSQL databases, DevOps automation, cloud platforms, and AI capabilities. Troubleshoot application, database, file transfer, connectivity, security, and hybrid-cloud issues while improving continuous delivery practices. Support payer operations by enriching metadata, automating lifecycle contracts, and measuring payer performance in an agile, collaborative environment.

Design, deliver, and operate business-critical distributed systems for Signify Health’s value-based care technology platform. The role requires full-stack development, polyglot programming, scalable distributed-systems expertise, cloud engineering, SQL and relational database knowledge, and strong communication. Preferred experience includes event-driven architectures, AI-assisted development tools, Kafka, APIs, containers, Kubernetes, infrastructure as code, monitoring, CI/CD, and agile methods. Quarterly or as-needed travel is required.