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# Principal CNO Software Engineer

- **Company:** Zetier Inc.
- **Location:** United States
- **Contract:** Permanent contract
- **Skills:** Apple IOS, C++ (Programming Language), Computer Networks, Linux, Firmware, Global System for Mobile Communications, Python (Programming Language), Mercurial, Windows API, Posix, Satcom, Reverse Engineering, Subversion, System Programming, Scripting, Git, IDA Pro, Windows Kernel, Zigbee, Software Version Control
- **Published:** June 24, 2026
- **Apply:** https://www.dice.com/job-detail/3afca12b-67b6-4760-b005-f3167d0f5192

## About the Role

Zetier is seeking Principal CNO Software Engineers to develop operationally critical cyber capabilities. Candidates will demonstrate practical experience designing, developing, and deploying tools intersecting command and control, persistence, and networking.

Required:

 * Highly experienced with low-level programming (C/C++)
 * Experience developing in scripting languages (Python)
 * Highly experienced in systems software development (Linux/Windows kernel drivers)
 * Successfully developed cutting edge end-to-end cyber solutions
 * Effective communication with customers and teammates
 * Active U.S. security clearance

Desired:

 * Experience working in networking (802.11ac, Zigbee, GSM, SATCOM, SDN, UHF/VHF, 5g)
 * Integration with standard system libraries (POSIX, WIN32 API)
 * Development on embedded platforms (uBoot, drone firmware, IOT)
 * Reverse engineering experience (gdb, Binary Ninja, IDA Pro)
 * Familiar reading assembly / compiled programs (x86, x64, ARM)
 * Securely implemented cryptographic primitives (AES-GCM, SHA256, ECDSA)
 * Developed/patched version control software itself (git, svn, mercurial)
 * Developed software on mobile platforms (Android, iOS)
 * Successfully led small cross-domain development teams



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