CNO Developer

General information

Requisition # R66162 Locations USA-CO-Aurora Posting Date 02/20/2026 Security Clearance Required TS/SCI w/ Poly 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 skilled and mission focused CNO Developer to join our team in Aurora, CO.  

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 Computer Network Operations (CNO) capabilities
• Perform design, development, documentation, testing, and debugging of software applications and systems
• Apply knowledge of network and security concepts to support capability development
• Communicate status updates and technical progress to leadership and stakeholders
• Ensure software quality and compliance with development standards

Minimum Qualifications:

• BS degree and 4+ years of technical work experience, or MS Degree and 2+ years of technical work experience, or High school diploma and 8+ years of technical work experience.
• Experience in Python or C/C++ programming languages
• Experience with troubleshooting and debugging

Preferred Qualifications:

• Experience with networking protocols (TCP/IP) and socket-level programming
• Experience with developing CNO capabilities
• Experience with low-level system internals across one or more platforms (e.g., Windows, Unix, Mobile, or network devices)
• Experience in software analysis or reverse engineering
• Experience using Atlassian tools (JIRA, Confluence, Crucible)
• Understanding of assembly language programming concepts
• Understanding of unit testing frameworks and practices

Clearance Requirements:

• 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.

Physical Requirements:

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

The projected compensation range for this position is $83,300.00-$139,800.00. 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.