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ManTech

Government cybersecurity, analytics, and IT services

Senior CNO Developer

Offensive Security & TestingConfirmed live in the last 24 hours
Full-timeAnnapolis Junction, MD, USA$114.6k - $190.2kIn-person

About the Job

Requirements

  • A Bachelor's degree and 9 or more years of experience, a high school diploma or GED and 13 or more years of experience, an Associate's degree and 11 or more years of experience, a Master's degree and 7 or more years of experience, or a PhD and 5 or more years of progressively responsible experience.
  • At least 3 years of software development experience, preferably in offensive or defensive cyberspace operations.
  • Expert proficiency in compiled languages such as C, C++, Rust, or Go.
  • Strong proficiency in scripting languages such as Python, PowerShell, or 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.
  • An active TS/SCI with Polygraph is required.
  • Must be a U.S. citizen.
  • Must be able to remain stationary 50% of the time.
  • Must occasionally move about inside the office to access file cabinets and office machinery.
  • Must frequently communicate with co-workers, management, and customers, potentially including delivering presentations, and exchange accurate information in these situations.

Responsibilities

  • 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; implement operational security 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; 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 operational security considerations for operators.
  • Participate in operational readiness exercises and capability demonstrations.

Desired Qualifications

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

About the Company

ManTech

Government cybersecurity, analytics, and IT services

ManTech provides technology and services to U.S. government customers in defense, intelligence, and federal civilian agencies. It delivers cybersecurity, data analytics, enterprise IT, logistics, intelligence lifecycle support, software development, systems engineering, mission operations, security, and training through government contracts that span strategy to operations with strict security compliance. Its differentiators include a national-security focus, end-to-end capabilities, long-term high-value contracts, and emphasis on specialized talent. The company aims to help government agencies modernize and protect critical infrastructure while pursuing sustainable growth and profitability.

Company size
10,001+
Company stage
IPO
Headquarters
Herndon, VA
Founded
1968

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