Full-time

Senior C# Developer

Posted by Robert Half Technology • Washington, DC, United States

📍 Washington, DC 🕒 February 08, 2026

About the Role

Description
We are seeking a Senior C# / .NET Developer to support full‑lifecycle development of custom enterprise applications in a mission‑critical, highly visible environment. This role is ideal for a seasoned developer who is customer‑focused, self‑directed, and comfortable working onsite in a collaborative setting.

You will work closely with program leadership, business analysts, and engineering teams to translate business and mission requirements into high‑quality technical solutions. Strong communication skills and the ability to operate with limited supervision are essential.


Key Responsibilities

+ Design, develop, and test high‑quality applications using C# and the .NET / .NET Core ecosystem

+ Support the full software development lifecycle, from requirements through deployment and operational support

+ Collaborate with program managers, business analysts, and engineers to translate requirements into technical solutions

Ready to Apply?

Submit your application today and take the next step in your career journey with Robert Half Technology.

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