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CNO Developer with Security Clearance

MANTECHAnnapolis Junction, MD🇺🇸United StatesPosted 28 Aug 2026

Why This Role Stands Out

Leverage your CNO development expertise to create cutting-edge cyber capabilities that directly impact national security, with opportunities for significant career growth within a reputable organization. This hybrid role is ideal for a mission-focused developer with strong Python or C/C++ skills and a TS/SCI w/Polygraph clearance seeking a dynamic and impactful career. Apply now to join a team dedicated to advancing cyber defense and innovation.

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Annapolis Junction, MD, United States
Posted
Yesterday
DockerRustEncryptionBashC++PowerShellPythoniOSAndroid

Job Description

MANTECH seeks a motivated, career and customer-oriented 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 4+yrs experience OR High School and 8+ yrs experience OR Associates and 6+ yrs OR experience OR Master's and 2+ yrs experience OR PhD and 0+ yrs of progressively responsible experience.
  • 3+ years software development experience, preferably in offensive / defensive cyberspace operations
  • Proficiency in compiled languages (C, C++, Rust, or Go)
  • Proficiency in scripting languages (Python, PowerShell, Bash)
  • Familiarity with operational security considerations in capability development (evasion, anti-forensics, attribution)

Preferred Qualifications

  • Demonstrated experience developing capabilities for Windows and Linux target environments
  • Understanding of exploitation techniques and post-exploitation workflows
  • 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.

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