Senior CNO Developer with Security Clearance

MANTECH seeks a motivated, career and customer-oriented Senior CNO Developer to join our team in Annapolis Junction, MD. Responsibilities include but are not limited to:

• Develop custom cyberspace capabilities based on operational requirements and vulnerability research findings
• Write, test, and maintain code for operational tools, exploits, post-exploitation frameworks, and automation systems, implementing operational security (OPSEC) controls in capability design including anti-analysis, evasion, and attribution management
• Collaborate with vulnerability researchers to weaponize discovered vulnerabilities into operational capabilities and integrate capabilities with existing operational infrastructure, data pipelines, and deployment systems
• Conduct unit testing, integration testing, and operational validation of developed capabilities and work with infrastructure developers to ensure capabilities deploy reliably across cloud and traditional environments
• Refactor and maintain legacy capabilities to address target environment changes and operational feedback
• Document capability functionality, usage, limitations, and OPSEC considerations for operators
• Participate in operational readiness exercises and capability demonstrations

Minimum Qualifications:

• Bachelor's Degree and 9+ years of experience OR High School Diploma/GED and 13+ years of experience OR Associate's degree and 11+ years of experience OR Master's Degree and 7+ years, OR a PhD with 5+ years of progressively responsible experience.
• 3+ years software development experience, preferably in offensive / defensive cyberspace operations
• Expert proficiency in compiled languages (C, C++, Rust, or Go)
• Strong proficiency in scripting languages (Python, PowerShell, Bash)
• Demonstrated experience developing capabilities for Windows and Linux target environments
• Understanding of exploitation techniques and post-exploitation workflows
• Familiarity with operational security considerations in capability development (evasion, anti-forensics, attribution)

Preferred Qualifications

• Experience developing capabilities for MacOS, mobile (iOS, Android), or embedded platforms
• Knowledge of containerization and capability packaging (Docker)
• Understanding of encryption protocols and cryptographic implementations
• Experience with cross-platform development and build systems (CMake, Makefile)
• Bachelor's Degree in Computer Science, Software Engineering, or related technical field (or equivalent experience). Previous work supporting CNO / OC missions

Clearance Requirements:

• An active TS/SCI with Polygraph is required.
• Must be a U.S. citizen.

Physical Requirements

• Must be able to remain in a stationary position 50% of the time.
• Needs to occasionally move about inside the office to access file cabinets and office machinery.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
• Must be able to exchange accurate information in these situations.