> Markdown version of [/jobs/ext/4374264-senior-net-full-stack-developer-fhir](https://www.wearedevelopers.com/jobs/ext/4374264-senior-net-full-stack-developer-fhir). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior .NET Full Stack Developer - FHIR - **Company:** Aspire Inc. - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Contract - **Skills:** ASP.NET, .NET Framework, Artificial Intelligence, Application Release Automation, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), Software Quality, Code Review, Continuous Integration, Cursor, Github, Interoperability, Enterprise Messaging Systems, Octopus Deploy, Performance Tuning, Release Management, Software Deployment, Software Engineering, Systems Integration, TypeScript, Spring Cloud, GitHub Copilot, ReactJS, Fast Healthcare Interoperability Resources, Claude Code, Software Security, Event Driven Architecture, Apache Kafka, Restful APIs, Terraform, Microservices - **Published:** October 26, 2026 - **Apply:** https://www.dice.com/job-detail/03b7b26f-1f2b-46eb-b4f1-09592c6b35ea ## About the Role We are seeking a highly experienced Senior .NET Full Stack Developer with FHIR expertise to support a large-scale application modernization initiative. The ideal candidate will have strong hands-on experience in C#/.NET 8+, React, TypeScript, REST APIs, FHIR, microservices, Azure Cloud, and event-driven architecture., * 8-10+ years of software engineering experience with strong full-stack development expertise. * Extensive hands-on experience with C#, .NET 8+, ASP.NET Core, React, and TypeScript. * Strong experience developing REST APIs and implementing FHIR integrations. * Proven experience with microservices, cloud-native applications, and event-driven architecture. * Hands-on experience with Microsoft Azure Cloud. * Strong experience with Terraform, GitHub Actions, and Argo CD. * Experience with Kafka or equivalent event-streaming technologies. * Experience with CI/CD automation, release management, infrastructure-as-code, and platform engineering. * Practical experience using GitHub Copilot, Claude Code, Cursor, or equivalent AI-assisted coding tools in production projects. * Ability to explain a recent production implementation where AI-assisted development improved coding, testing, documentation, or deployment. * Strong understanding of automated testing, CI/CD quality gates, application security, and performance optimization. * Excellent technical leadership, mentoring, communication, and stakeholder management skills. Preferred Qualifications * Healthcare domain experience. * Experience implementing healthcare interoperability solutions using HL7 FHIR. * Experience leading engineering teams or development pods. * Previous experience modernizing enterprise-scale legacy applications. Aspire IT Solutions is an equal opportunity employer. All applicants must submit accurate information; misrepresentation may disqualify candidacy. This role may require background checks/work authorization verification. ## Description * Design, develop, and implement full-stack applications using C#, .NET 8+, ASP.NET Core, React, and TypeScript. * Develop RESTful APIs and integrate healthcare systems using FHIR (Fast Healthcare Interoperability Resources) standards. * Modernize legacy monolithic applications into cloud-native microservices and event-driven architectures. * Implement infrastructure automation using Terraform. * Design and manage CI/CD pipelines using GitHub Actions and Argo CD. * Lead application deployments, release automation, and environment management on Microsoft Azure. * Implement event-driven solutions using Kafka or similar messaging platforms. * Establish engineering best practices for code quality, automated testing, security, and performance. * Leverage AI-assisted development tools such as GitHub Copilot, Claude Code, and Cursor to improve development productivity. * Provide technical leadership, conduct code reviews, mentor developers, and collaborate with cross-functional teams. * Ensure application scalability, reliability, observability, and production readiness.