MANTECH

Expert CNO Developer

MANTECH  •  San Antonio, TX (Onsite)  •  1 month ago
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Job Description


General information


Requisition #
R67275
Locations
USA-TX-San Antonio
Posting Date
04/27/2026
Security Clearance Required
Secret
Remote Type
Onsite
Time Type
Full time


Description & Requirements


Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

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 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.

MANTECH

About MANTECH

MANTECH is more than a technology company. We are a company dedicated to service, and we consider our work a part of the public trust. The people of MANTECH are privileged to work for the security of the United States, the welfare of our service members and veterans, the protection of our communities, and the cause of better health care.

We have served the nation for more than 57 years, and in that time we have continually changed and grown to provide the technology that government needs to meet new challenges. We seek people with the same strong ethic of service, creativity, energy, and dedication to serving our country.

We are comprised of more than 9,800 talented employees around the world. Nearly 40% of our employees are veterans. Many others come from the Intelligence Community, Homeland Security and federal civilian agencies. We understand our customers’ challenges because we know their world firsthand.

When Federal managers and military leaders face tough challenges in cyber, data collection & analysis, enterprise IT or systems and software engineering, they turn to MANTECH to get the job done right. These professionals trust MANTECH and stay with us for years because we understand their needs and tackle their most complex challenges head on. They know that reaching their goal is our ultimate objective.

Industry
IT & Software
Company Size
10,000+ employees
Headquarters
Herndon, Virginia
Year Founded
1968
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