Job Description
General information
Requisition #
R70192
Locations
USA-TX-San Antonio
Posting Date
08/26/2026
Security Clearance Required
TS/SCI
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 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 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
Minimum Qualifications:
- 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
Preferred Qualifications:
- 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
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.
Numbers & Facts
| Location | San Antonio, TX |
| Industry | Other/Not Classified |
| Company Size | 5,000 to 9,999 employees |
| Year Founded | 1968 |
| Website | https://www.mantech.com/about |
About Company
Our Mission
Our mission is empowering our nation through a diverse and skilled workforce securely delivering innovative technology, consulting services and digital solutions for our customers’ mission success, every day.
Our Vision
Our vision is Securing the Future as the most trusted partner for U.S. Defense, Intelligence and Federal Civilian customers through the power of One ManTech. When these agencies think of an essential partner for their national and homeland security needs, they think ManTech.
Our Values
Our values are grounded in a bedrock of truth, integrity and caring for each other and the mission. We hold steadfast to:
• TRUST – We earn and protect the trust of our customers, employees and investors through an enduring foundation of respect, fairness, credibility and honoring our commitments, always.
• INCLUSION – We are an inclusive, diverse and talented workforce with a passion for mission success, intellectual capital, creativity and integrity. Our high ethical standards and investment in our people build confidence with our customers.
• QUALITY– We deliver exceptional quality to customers through differentiated technology solutions and an uncompromising focus on excellence, value and innovation.
Skills
- Ansibleunmatched
- Best Practicesunmatched
- C Programming Languageunmatched
- C++ Programming Languageunmatched
- Computer Networksunmatched
- Computer Securityunmatched
- Continuous Deployment/Deliveryunmatched
- Continuous Integrationunmatched
- Customer Relationsunmatched
- Data Analysisunmatched
- Debugging Skillsunmatched
- Debugging Toolsunmatched
- Disassemblersunmatched
- Documentationunmatched
- GDB (Gnu Debugger)unmatched
- Government Intelligenceunmatched
- Hardware Developmentunmatched
- Intelligence Agenciesunmatched
- Internet Securityunmatched
- Jenkinsunmatched
- Leadershipunmatched
- Linux Kernelunmatched
- Microsoft Windows API (Application Programming Interface)unmatched
- Microsoft Windows Operating Systemunmatched
- Network Protocolsunmatched
- Network Systemsunmatched
- Physical Demandsunmatched
- Python Programming/Scripting Languageunmatched
- Reverse Engineeringunmatched
- Scripting (Scripting Languages)unmatched
- Software Developmentunmatched
- System Architectureunmatched
- Testingunmatched
- WinDbgunmatched
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