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# Expert CNO Developer

- **Company:** Mantech International Corporation
- **Location:** San Antonio, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Microsoft Windows, Application Programming Interfaces (APIs), Software Applications, C++ (Programming Language), Computer Programming, Computer Networks, Continuous Integration, Software Debugging, Python (Programming Language), Linux Kernel, Network Protocols, Ansible, Reverse Engineering, Systems Architecture, WinDBg, Jenkins
- **Published:** October 26, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3467366274&tx=IT8881TTV&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* Bachelor's Degree and 9+ years of technical experience or Master's Degree and 7+ years of technical experience, or a PhD with 5+ years of technical experience
 * Experience with Windows or Linux kernel/user-mode development
 * Experience with Windows APIs and network protocols
 * Experience programming and scripting with C, C++, and Python
 * Experience debugging using WinDbg and GDB
 * Ability to pass customer-specific Senior-level exams for developer qualification, * Experience with OCO and/or CNO development
 * Experience with Reverse Engineering using IDA or Ghidra disassemblers
 * Experience with CI/CD workflows using Jenkins, Ansible or similar tools

Clearance Requirements : Active TS/SCI clearance is required

Physical Requirements: Must be able to remain in a stationary position 50% of the time

## Description

* Designing and developing new hardware- or software-based CNO capabilities to support mission objectives
 * Managing design, development, documentation, testing, and debugging application software and systems
 * Applying expert knowledge of security concepts, computer networks, and system architectures to solve complex technical challenges
 * Communicating project status, technical risks, and solutions effectively with leadership and customers
 * Ensuring established software development standards, best practices, and security guidelines are consistently met