Senior CNO Software Developer

General information

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

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 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 th