Offensive Cyber Operations (OCO) Tool Developer - Hybrid

Sixgeninc

Sterling,VA (Sterling, VA) Remote permanent

Posted: February 11, 2026

Job Description

Offensive Cyber Operations (OCO) Tool Developer

Clearance requirements: US Citizens with ability to get cleared

Location: Sterling, VA, hybrid work

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 x86_64 and ARM64 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., WinDbg, 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, x86_64 or ARM64 assembly a plus

Culture and Benefits:

We recognize that a company is nothing without well-cared for employees; we go to great lengths to ensure that our employees are happy, supported, and constantly presented with opportunities for both personal and professional growth.

• We offer the following 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 at [email protected]

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

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