CNO Software Developer

ManTech; Corridor North (MD); On-site; USD 140,000 - 200,000; Full time

Job summary

ManTech is seeking a motivated CNO Developer to join our team in Annapolis Junction, MD. The role involves building and refining capabilities for cyberspace operations and collaborating with researchers to operationalize vulnerabilities.

The candidate will write, test, and maintain code across cloud and traditional environments, with emphasis on OPSEC protections and robust deployment. Candidates should have strong C/C++, Rust, or Go skills and experience in scripting.

Qualifications

• Bachelor's degree or equivalent with 4+ years' experience.
• 3+ years software development, offensive/defensive cyberspace ops.
• Proficiency in C/C++, Rust, or Go.
• Scripting: Python, PowerShell, Bash.
• Familiar with OPSEC considerations in capability development.

Responsibilities

• Develop custom cyberspace capabilities from requirements.
• Write, test, and maintain code for tools and automation.
• Collaborate with researchers to weaponize vulnerabilities.
• Ensure deployment reliability across cloud and on‑prem environments.
• Refactor legacy capabilities per feedback.
• Document functionality, usage, and OPSEC considerations.
• Participate in readiness exercises and demonstrations.

Skills

C/C++

Rust

Go

Python

PowerShell

Bash

OPSEC concepts

Education

Bachelor's Degree

High School

Associate's Degree

Master's Degree

PhD

Tools

Docker

CMake

Makefile

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 workflowsExperience 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.