Senior CNO Developer

General Information

Requisition #: R68722

Location:

USA-MD-Hanover

Posting Date: 06/16/2026

Security

Clearance Required:

TS/SCI w/ Poly

Remote Type:
Onsite

Time Type:
Full time

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 an experience and mission focused Senior CNO Developer to join our team in Hanover, MD.

In this role, you will contribute to the development of mission‑critical cyber capabilities and lead efforts in advanced Computer Network Operations (CNO) and drive technical excellence in CNO development. You’ll be part of a dynamic team working on next‑generation solutions that safeguard national security systems.

• Designing and developing new hardware‑ or software‑based Computer Network Operations (CNO) capabilities
• Managing the design, development, documentation, testing, and debugging of software applications and systems
• Design and develop end‑to‑end data flow and tasking for CNO tools developed
• Applying expert knowledge of network and security concepts to support capability development
• Communicating status updates and technical progress to leadership and stakeholders
• Ensuring software quality and compliance with development standards

• BS degree in a technical discipline and 8+ years of technical work experience, or MS Degree in a technical discipline and 6+ years of technical work experience, or High school diploma and 12+ years of technical work experience
• Experience in Python and C/C++ programming languages
• Experience with troubleshooting and debugging
• Experience with low‑level system internals across one or more platforms (e.g., Windows, Unix, Mobile, or network devices)
• Experience with networking protocols (TCP/IP) and socket‑level programming
• Experience with developing CNO capabilities
• Experience leading technical CNO solutions

• Experience in software analysis or reverse engineering
• Experience with assembly language programming
• Experience with unit testing frameworks and practices
• Experience using Atlassian tools (JIRA, Confluence, Crucible)

• Must have a current/active TS/SCI w/Polygraph security clearance and be willing and able to obtain another polygraph prior to start, if required

• Must be able to remain in a stationary position at least 50% of the time.

The projected compensation range for this position is $–$. The final salary may be influenced by contract wage determination, work experience, skills, geographic location (for remote opportunities), education, certifications and federal labor categories. MANTECH also offers competitive benefits, including Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short‑term and long‑term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs and 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. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at  and provide your name and contact information.