Demo

Windows Developer

The Josef Group Inc.
Chantilly, VA Full Time
POSTED ON 12/11/2025 CLOSED ON 1/9/2026

What are the responsibilities and job description for the Windows Developer position at The Josef Group Inc.?

As a Windows Developer, you will have the opportunity to work on a variety of mission-critical programs, developing specialized cyber tools, techniques, and integrated effects. The work our team performs demands a higher level of engagement and ingenuity than your typical cybersecurity role. We craft innovative cyber solutions to real-world problems, all in the name of national security.

Top Secret /SCI clearance is required.

From day one, you will be immersed in exciting new challenges where you can leverage your knowledge of OS security features, reverse engineering, vulnerability analysis, networking, firmware, kernel-level development, OS platform internals, and more.


- Experience in writing effective Windows kernel-level code and extensions, such as device drivers for networking, storage, audio, and video.

- Software development experience covering design, implementation, testing, analysis, and debugging supporting CNO/CNE.

- Experience in vulnerability research and applying various analysis techniques.

- Experience in reverse engineering across different architectures (e.g., x86, ARM).

- Demonstrated comprehensive understanding of low-level OS development and APIs.

Top Secret /SCI clearance is required.

Salary : $235,000 - $285,000

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