
Requisition #
R64417
Locations
USA-MD-Hanover
Posting Date
11/26/2025
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 a skilled and innovative Senior CNO Developer to join our team in Hanover, MD.
In this role, you will contribute to the development of mission-critical cyber capabilities, drive excellence in CNO development and lead efforts in advanced Computer Network Operations (CNO). You’ll be part of a dynamic team working on next-generation solutions that safeguard national security systems.
Responsibilities include but are not limited to:
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
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
Minimum Qualifications:
BS degree and 4+ 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 in managing and leading development teams
Preferred Qualifications:
Experience in software analysis or reverse engineering
Understanding of assembly language programming concepts
Familiarity with unit testing frameworks and practices
Experience using Atlassian tools (JIRA, Confluence, Crucible)
Clearance Requirements:
An active/current TS/SCI with ability to obtain Polygraph is required.
Physical Requirements:
Must be able to remain in a stationary position at least 50% of the
The projected compensation range for this position is $112,400.00-$186,500.00. 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 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.

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.