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Windows​/Linux CNO Developer Security Clearance

Job in Arlington, Arlington County, Virginia, 22201, USA
Listing for: Two Six Technologies
Full Time position
Listed on 2025-12-30
Job specializations:
  • Software Development
Salary/Wage Range or Industry Benchmark: 100000 - 220000 USD Yearly USD 100000.00 220000.00 YEAR
Job Description & How to Apply Below
Position: Windows/Linux CNO Developer with Security Clearance
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. Two Six Technologies, is 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 comfortable supporting quick reaction capability development events. Work locations:
Chantilly, VA, Herndon, VA, or Arlington, VA. Responsibilities:
* 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 Requirements:
* 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 Desired Skills/

Experience:

* 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 Clearance Requirements:
* Active TS/SCI #LI-JB1 Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. 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.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Salary Range $100,000 - $220,000 USD Looking for other great opportunities? Check out Two Six Technologies Opportunities for all our Company's current openings! Ready to make the first move towards growing your career? If so, check out the Two Six Technologies Candidate Journey ! This will give you step-by-step directions on applying, what to expect during the application process, information about our rich benefits and perks along with our most frequently asked questions.

If you are undecided and would like to learn more about us and how we are contributing to essential missions, check out our Two Six Technologies News page! We share information about the tech world around us and how we are making an impact! Still have questions, no worries! You can reach us at Contact Two Six Technologies . We are happy to connect and cover the information needed to assist you in reaching your next career milestone.

Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), 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.
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