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Expert CNO Developer

**MANTECH** seeks a motivated, career and customer-oriented **Expert CNO Developer** to join our team in **San Antonio, TX** . In this role, you will become an integral member of a diverse team of elite cyber professionals supporting critical national security missions. You will work on challenging technical problems, develop innovative offensive and defensive cyber capabilities, and collaborate with leadership and customers to deliver high-impact solutions in a dynamic environment.

**Responsibilities include but are not limited to:**

+ Designing and developing new hardware- or software-based CNO capabilities to support mission objectives

+ Managing the design, development, documentation, testing, and debugging of 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

**Minimum Qualifications:**

+ BS degree and 10+ years of software development experience

+ Experience with Windows and Linux kernel/user-mode development

+ Experience programming and scripting with C, C++, and Python

+ Experience with Reverse Engineering using IDA or Ghidra disassemblers

+ Experience debugging using WinDbg and GDB

**Preferred Qualifications:**

+ Experience with CNO development

+ Experience with CI/CD workflows using Jenkins, Ansible or similar tools

+ Experience with technical documentation

**Clearance Requirements:**

+ Must have an active/current Secret security clearance

**Physical Requirements:**

+ Must be able to remain in a stationary position 50% of the time.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.


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Expert CNO Developer

Full time
San Antonio, TX

Published on 03/03/2026

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