Sr. Full Stack .NET Developer

Job Description

This person will play a key role in building the backend .NET web services and APIs that enable next-generation member and claims experiences across both web and mobile platforms.

Support a multi-year digital transformation initiative focused on modernizing member-facing web and mobile experiences, including member portals, claims applications, and other customer-facing platforms.

Design, develop, and enhance scalable backend services, APIs, and integrations that power web and mobile applications.

Collaborate with product, architecture, UX, and engineering teams to deliver secure, high-performing solutions.

Modernize legacy .NET applications and contribute to cloud-enabled, event-driven architectures.

Troubleshoot and resolve issues across the full stack, including application code, APIs, databases, infrastructure, and CI/CD pipelines.

Participate in Agile ceremonies, code reviews, testing, and continuous improvement initiatives.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances.

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• 10+ years of full-stack .NET web development experience with expertise in ASP.NET Core and .NET Framework.
• Strong hands-on experience with C#, ASP.NET, Entity Framework, MVC, Web Forms, Web APIs, and SQL Server.
• Experience building and supporting enterprise web applications, APIs, and system integrations.
• Strong understanding of application infrastructure, including IIS, DNS, IP networking, SSL certificates, source control, and CI/CD pipeline troubleshooting.
• Expertise in modern web application architecture, including event-driven systems, cloud-based solutions, integrations, and automated testing practices.
• Advanced SQL Server development skills, including database design, query optimization, stored procedures, and PL/SQL/T-SQL development.
• Experience with modern front-end frameworks such as Angular, React, or Blazor.
• Strong knowledge of REST APIs, JSON/XML, and application architecture patterns.
• Proven ability to write scalable, maintainable, and high-performance code.
• Experience working in Agile, SAFe, and/or Waterfall environments.
• Some experience leveraging AI-powered development tools such as Git Hub Copilot, Claude, or similar technologies to improve developer productivity and code quality.
• Azure cloud, Git Hub, and Azure Dev Ops CI/CD experience.
• Experience with .NET MAUI for cross-platform desktop and mobile application development.
• Knowledge of web application security best practices.
• Microsoft certifications preferred.
• Healthcare or insurance industry experience, including HIPAA, PHI, and PII compliance.