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.

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.