Backend Developer Jobs in Missouri, United States

NV5 Geospatial (NV5G) builds core backend services leveraging Esri products for national security GIS solutions. The developer designs and implements Python and Node.js APIs, containerized ArcGIS Enterprise tools, and data ingestion pipelines, collaborating with platform, DevOps, and GIS teams.

Freedom Technology Solutions Group seeks a Backend Developer SME to lead backend and geospatial initiatives, modernize applications, enforce DevSecOps, and drive cloud-native architecture. Responsibilities include defining enterprise architecture, overseeing backend operations across cloud and data center, leading CI/CD pipelines, and engaging senior client leadership.

Senior Backend Developer to design, develop, and deploy enterprise-scale services, architect secure DevSecOps pipelines, migrate and modernize AWS applications, integrate geospatial solutions, set technical standards, lead teams, mentor developers, evaluate performance, and support proposal writing for intelligence analysis products.

R&D Engineering at Cardinal Health builds cloud software for medical devices. The Senior Engineer leads backend development, collaborates with designers and customers, mentors junior devs, and documents design and testing.

Zelis is a healthcare financial technology company modernizing payer, provider, and consumer experiences. They seek a Senior Backend .Net Engineer to build cloud-native microservices on AWS, leveraging C#, .Net 10, Kubernetes, and IaC tools like CDK. The role involves leading development teams, designing scalable solutions, and collaborating with architects and product owners.

Backend Capability team at CVS Health drives the backend platform, API ecosystem, and third‑party integration layer for its SaaS health suite. The role defines API standards, steers a scalable event‑driven microservices architecture, and leads integration strategy with EHR/EMR systems and emerging AI model APIs.

Platform Engineering at U.S. Bank builds best‑in‑class software experiences for financial services. The Software Engineer designs, develops, tests, and maintains backend AI‑powered services, writes production‑ready code, conducts code reviews, and embeds reliability, security, and AI capabilities into cloud‑native applications.

Model-Based Engineering (MBE) software team at Boeing builds prototypes and new capabilities for web applications and services, designing APIs and data pipelines. The role leads architecture, develops server applications, and mentors engineers while shaping production‑ready infrastructure.

U.S. Bank Digital Banking team builds modern financial software experiences for customers. The Software Engineer 1 will design, develop, test, and maintain backend UI and AI services, collaborating across agile squads and ensuring compliance and security standards.

Lead Epic EHR design, configuration, development, and optimization across clinical, operational, and revenue cycle domains. Mentor teams, enforce standards, guide integrations (HL7, FHIR, APIs), oversee upgrades, and translate clinical needs into technical solutions.

Epic + EHR Development Lead at CVS Health builds scalable Epic solutions across clinical, operational, and revenue cycle domains. The role leads Epic analysts, developers, and configuration teams, defines standards, and oversees builds, integrations, and upgrades.

Blue Cross Blue Shield of Kansas’ Development team builds secure, scalable applications that support complex business processes across the state’s health system. The Developer III designs, develops, tests, and deploys .NET solutions, refactors legacy code, and collaborates with product owners and QA in an Agile/Scrum environment.

Developer role at Blue Cross Blue Shield of Kansas writes, debugs, and maintains application code. Collaborates with business analysts, QA, and peers in Agile to translate requirements into technical specs, design scalable, secure solutions, and ensure performance standards.

Product Developer responsible for end-to-end product lifecycle in a specified category at Bass Pro Shops. Leads market research, identifies opportunities, and drives development from concept to launch.

Market Developer at Thrivent Financial for Lutherans drives advisor success by mentoring new financial advisors, coaching joint field work, and delivering training on Salesforce and Thrivent tools. The role supports advisor launch, marketing plan execution, and continuous performance improvement across the South Central Advisor Group.

Cornerstones of Care’s Development team drives philanthropic revenue through major giving. The Director of Development leads strategy, portfolio management, and stewardship of high‑net‑worth donors, partnering with executive leadership and board members to secure significant gifts.

Software Developer at GDIT supports intelligence customers in Springfield, VA, St. Louis, MO, and Arnold, MO. Requires TS/SCI clearance and 5+ years of software development experience. Works on enterprise solutions using CI/CD, DevSecOps, Kubernetes, Docker, and container orchestration.

PHP Developer on the St. Louis Fed’s IT team, building robust web applications that serve the Federal Reserve’s mission of stable prices and economic growth. The role designs and implements PHP/Laravel APIs, handles large datasets, and creates 508‑compliant front‑ends with React.js, while ensuring performance, security, and maintainability.

MACC (Mid America Computer Corporation) develops billing and integration software for telecom providers. The Software Developer designs, builds, and maintains MSSQL databases, RESTful APIs, and Angular front‑ends using C#/.NET Core, collaborating with cross‑functional teams to deliver new features.

Technology Services team builds AI‑driven collaboration and automation platforms for the firm. The Software Developer designs, develops and deploys enterprise‑grade AI applications on Azure using C#/.NET, Azure Functions, Service Bus and AI Foundry, delivering intelligent workflow solutions.