<p>Robert Half is partnering with a non-profit healthcare technology organization that supports thousands of healthcare providers, payers, and public-sector partners through secure health information exchange, identity management, and interoperability solutions. We are seeking a Senior .NET Software Engineer with strong Microsoft technology expertise to design, build, and maintain scalable applications and integrations in Azure. The ideal candidate will have experience developing modern APIs, cloud services, and enterprise applications using C# and .NET while collaborating on solutions that handle sensitive healthcare and identity data.</p><p><br></p><p><strong>Location:</strong> 100% remote</p><p><strong>Duration:</strong> 10 months</p><p><strong>Schedule:</strong> Monday-Friday; 9am-3pm PDT</p><p><br></p><p><strong>Responsibilities</strong></p><ul><li>Design, build, and maintain Azure Durable Functions that process clinical documents, eligibility transactions, and healthcare data workflows.</li><li>Develop and enhance ASP.NET Core APIs, Blazor applications, and administrative tools that support identity, single sign-on, dashboards, and operational services.</li><li>Build integrations with healthcare partners, state agencies, and payers using REST APIs, SFTP, event streams, and other secure communication methods.</li><li>Implement healthcare interoperability and identity standards while maintaining compatibility with external partner systems.</li><li>Write automated unit, integration, and end-to-end tests to ensure solution quality and reliability.</li><li>Build, maintain, and improve Azure DevOps CI/CD pipelines.</li><li>Monitor and troubleshoot production systems using Application Insights, Azure Monitor, OpenTelemetry, and distributed tracing tools.</li><li>Apply security best practices to protect sensitive healthcare and identity data through encryption, Key Vault, audit logging, and least-privilege access controls.</li><li>Participate in code reviews, architecture discussions, technical documentation, and continuous improvement initiatives.</li><li>Support the modernization and migration of legacy .NET Framework and Web Forms applications to modern .NET platforms.</li></ul>