Job description

Job Title: Sr Desktop Application Developer Location: Reston, VA (Onsite) Type: FTE Exp. Level: 10-12 years Position Overview Our end-client is seeking a Senior Desktop Application Developer to join a high-impact team supporting mission-critical systems in a secure federal environment. This role is ideal for a seasoned developer with a strong background in Windows desktop applications and a passion for secure, high-performance software development. Clearance Required: Active Top Secret (TS) – TS/SCI Preferred Citizenship: U.S. Citizenship Required due to federal contract conditions. What You'll Do • Design, develop, and maintain secure desktop applications using modern frameworks. • Refactor and modernize legacy systems to meet current security and performance standards. • Collaborate with cross-functional teams including cybersecurity, DevOps, and systems engineering. • Ensure compliance with federal security standards (e.g., STIGs, RMF). • Participate in Agile development cycles, including sprint planning and code reviews. Required Skills & Experience • 8+ years of experience in desktop application development. • Proficiency in: • C#, .NET Framework/.NET Core, WPF, WinForms • C++ (including MFC), PowerShell, Python • Windows API, COM/DCOM • Experience with: • Visual Studio, Git, Azure DevOps • Secure coding practices (OWASP, NIST 800-53) • DISA STIGs, RMF, and vulnerability remediation • Windows Services, IPC, Active Directory, PKI • Unit testing frameworks (MSTest, NUnit, xUnit) • UI automation tools (e.g., WinAppDriver, TestComplete) Preferred Qualifications • TS/SCI with CI Polygraph • Bachelor's or Master's in Computer Science, Engineering, or related field • Experience in DoD, IC, or other federal environments • Familiarity with: • Cross-platform development ( Qt, Electron) • Virtualization ( VMware, Hyper- V) and containerization ( Docker) • Windows internals and debugging tools (e.g., WinDbg)

Requirements