> Markdown version of [/jobs/ext/4201208-cno-developer](https://www.wearedevelopers.com/jobs/ext/4201208-cno-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # CNO Developer - **Company:** T-Rex Solutions, LLC - **Location:** Hanover, MD, United States - **Experience:** Experienced - **Salary:** $120,000.0 - $150,000.0 - **Contract:** Permanent contract - **Skills:** Software Applications, Assembly Language, Confluence, JIRA, Unit Testing, Computer Programming, Software Debugging, Python (Programming Language), Program Analysis, Reverse Engineering, Software Engineering, TCP/IP, Computer Network Technologies, Software Troubleshooting, Computer Equipment, Atlassian Tools - **Published:** October 22, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9278794/cno-developer ## About the Role * BS Degree in a technical discipline or High School Diploma and 4+ years of technical experience * Experience in Python or C/C++ programming * Experience with troubleshooting and debugging Preferred Qualifications: * Experience with networking (TCP/IP) and socket-level programming * Experience with low-level system internals across one or more platforms * Experience in software analysis or reverse engineering * Experience with developing CNO capabilities * Understanding of unit testing frameworks and practices * Understanding of assembly programming concepts * Familiarity with Atlassian tools such as JIRA, Confluence, and Crucible Security Clearance Requirements: * Must have a current/active TS/SCI w/Polygraph security clearance and be willing and able to obtain another polygraph prior to start, if required. Physical Requirements: * Ability to remain stationary for extended periods (50% of the time) and operate computer equipment and office machinery. ## Description * Design and develop new hardware- or software-based CNO capabilities * Assists with the design, development, documentation, testing, and debugging of applications software and systems * Apply knowledge of security concepts and network technologies * Ensure software engineering standards are consistently met