Offensive Cyber Operations; OCO Tool Developer - Hybrid

Offensive Cyber Operations (OCO) Tool Developer - Hybrid

Location:

Sterling, VA, hybrid work

Clearance requirements: US Citizens with ability to get cleared

Offensive Cyber Operations (OCO) Tool Developer

Job Summary

We are seeking a motivated Junior–Mid Level Offensive Cyber Operations (OCO) Tool Developer to support the design, development, and testing of custom cyber capabilities for Windows and Linux platforms across  and ARM
64 architectures. The ideal candidate has strong systems programming fundamentals and an interest in low-level security research and operational tooling.

Key Responsibilities

• Develop, test, and maintain custom OCO tooling for Windows and Linux environments.
• Write clean, well‑documented, and maintainable code in C/C++, Rust, or similar languages.
• Assist in developing capabilities involving process interaction, memory operations, and secure communications.
• Debug and troubleshoot low-level issues.
• Maintain awareness of evolving platform mitigations and defensive controls.

Qualifications

• 2–5 years of professional software development experience (or equivalent advanced academic experience).
• Strong proficiency in at least one systems programming language (C, C++, or Rust preferred).
• Experience developing software on Windows and/or Linux platforms.
• Understanding of operating system fundamentals (processes, threads, memory management, system calls).
• Familiarity with debugging tools (e.g., Win Dbg, GDB, LLDB).
• Experience using Git and modern build systems.
• Willingness to be submitted for a TS/SCI security clearance.

Technologies

C / C++, Rust, Python, Go, Ghidra, Windows internals or Linux syscall familiarity,  or ARM
64 assembly a plus

Culture and Benefits

• Industry leading company‑funded medical, dental, and vision insurance family plans.
• Reimbursement for gym memberships, lunches with coworkers, and personal career training.
• Flexible hours and opportunities to work from home.
• 248 hours annually paid time off and company paid 401K!

For more information, please reach out to our Human Strategist Amy Maxwell well.

At SIXGEN, we embrace people of all backgrounds. We are an equal opportunity employer.