Associate CNO Developer

ManTech; Herndon (AR); On-site; USD 70,000 - 116,000; Full time

Job summary

ManTech in Herndon, VA, is seeking an Associate CNO Developer to contribute to mission-critical cyber capabilities and national security—designing, developing, and debugging software and hardware components.

The role requires a technical BS or equivalent experience, strong Python or C/C++ skills, and the ability to work on complex systems with security requirements, in an onsite government environment. Active Secret clearance is preferred.

Qualifications

• BS Degree in a technical discipline or High School Diploma with 4+ years of technical experience.
• Experience in Python or C/C++ programming.
• Experience with troubleshooting and debugging.

Responsibilities

• Design and develop new hardware- or software-based CNO capabilities.
• Assist with design, development, documentation, testing, and debugging of applications software and systems.
• Apply knowledge of security concepts and network technologies.
• Ensure software engineering standards are consistently met.

Skills

Python

C/C++

Troubleshooting

Debugging

Security concepts

Education

BS Degree in a technical discipline

High School Diploma + 4+ years technical experience

Tools

Socket programming

Low-level system internals

Reverse engineering

Job description

General information

Requisition # R70350

Locations: USA-VA-Herndon

Posting Date: 09/08/2026

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 unveil your potential with MANTECH!

MANTECH seeks a skilled and mission-focused Associate CNO Developer to join our team in Herndon, VA. In this role, you will contribute to the development of mission-critical offensive cyber capabilities and drive excellence in advanced Computer Network Operations (CNO). You’ll be part of a dynamic team working on next-generation solutions that safeguard our national security systems.

Responsibilities include but are not limited to:

• Design and develop new hardware- or software-based CNO capabilities
• Assists with the design, development, documentation, testing, and debugging of applications software and systems
• Apply knowledge of security concepts and network technologies
• Ensure software engineering standards are consistently met

Minimum Qualifications:

• BS Degree in a technical discipline or High School Diploma and 4+ years of technical experience
• Experience in Python or C/C++ programming
• Experience with troubleshooting and debugging

Preferred Qualifications:

• Experience with networking (TCP/IP) and socket-level programming
• Experience with low-level system internals across one or more platforms
• Experience in software analysis or reverse engineering
• Experience with developing CNO capabilities

Clearance Requirements: Active/current Secret clearance with ability to obtain a TS/SCI clearance

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

The projected compensation range for this position is $69,900.00-$116,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

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.