Windows​/Linux CNO Developer

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.

We are seeking Windows and Linux CNO developers. Our CNO efforts are mission‑oriented and exclusively focused on delivering solutions against hard and enduring targets within difficult and challenging environments. Our vulnerability research and development teams consistently deliver across a multitude of devices and platforms. Candidates must be experienced software developers with a deep esoteric understanding of cradle‑to‑grave exploitation and attack mission scenarios and be comfortable supporting quick‑reaction capability development events.

Work locations:
Chantilly, VA;
Herndon, VA; or Arlington, VA.

• Support cybersecurity development efforts as part of a smaller team in a SCIF.
• Manage assigned tasks and provide accurate estimations of completion time.
• Architect and design software solutions.

• Six plus years of professional software development experience writing in C, C++, and Python.
• Six plus years of experience working in a CNO development environment.
• Six plus years of demonstrated in‑depth experience developing, testing, and debugging software.
• Demonstrated in‑depth understanding of low‑level operating system features and kernel development.

• Software reverse engineering – IDA Pro, Ghidra, disassembly tools.
• Networking – networking stack, TCP, and UDP protocols.
• Cryptography – TLS, PKCS.
• Debugging – GDB, Win Dbg, Olly Dbg, Valgrind, Visual Studio.
• Operating Systems – Windows and Linux user and/or kernel space development.

• Active TS/SCI.

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. Our offerings include but are not limited to medical, dental, and vision insurance; life and disability insurance; retirement benefits; paid leave; tuition assistance and professional development.

$100,000 - $220,000 USD per year (annualized).

Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race, color, religion, national origin, sex, sexual orientation, gender identity or expression, age, marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law.

If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to  Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.

Additionally, please be advised that this business uses E‑Verify in its hiring practices.

By submitting the following application, I hereby certify that to the best of my knowledge, the information provided is true and accurate.