CNE Developer-TS

SIXGEN's mission is to deliver agile, mission-ready cybersecurity solutions that empower government and critical infrastructure organizations to stay ahead of advanced cyber threats. We combine innovation, deep expertise, and cutting-edge capabilities to uncover vulnerabilities, protect vital systems, and ensure operational superiority in an ever-evolving digital landscape.

Job Type: Full Time On-site WFH Friday

Location: Columbia, MD

Clearance Requirements: TS SCI Eligible with ability to pass CI polygraph

Travel: 0%

We are seeking a Computer Network Exploitation (CNE) Developer to research vulnerabilities, develop specialized software capabilities, and support authorized operations. This role combines low-level software development, reverse engineering, and vulnerability research to address complex technical challenges across operating systems, applications, and network protocols.

The ideal candidate is comfortable working with unfamiliar codebases, investigating undocumented system behavior, and turning research findings into reliable, maintainable software. The developer will collaborate with researchers, systems engineers, and testing personnel throughout the development lifecycle.

• Design, develop, test, and maintain software supporting authorized CNE research, capability development, and mission requirements.
• Conduct vulnerability research and root-cause analysis of operating systems, applications, services, and network protocols.
• Reverse engineer compiled software, firmware, and proprietary protocols to understand functionality, identify weaknesses, and assess technical feasibility.
• Develop proof-of-concept implementations and mature validated research into documented, testable capabilities.
• Write and debug software
• Analyze platform internals, including memory management, process execution, system calls, access controls, and interprocess communication.
• Build development and testing environments that reproduce relevant system configurations and support repeatable evaluation.
• Develop modular components with clearly defined interfaces to support integration, maintenance, and adaptation to changing requirements.
• Collaborate with independent testing and quality assurance personnel to validate functionality, reliability, compatibility, and failure handling.
• Participate in code reviews, configuration management, and technical planning
• Document software architecture, research findings, build procedures, dependencies, limitations, and test results.

• Professional experience in systems programming, reverse engineering, vulnerability research, or closely related software development.
• Strong proficiency in software development
• Experience using debuggers, disassemblers, and decompilers such as Ghidra, IDA Pro, GDB, Win Dbg, or LLDB.
• Understanding of operating system internals on one or more platforms
• Familiarity with common vulnerability classes, memory safety issues, and platform security mitigations.
• Knowledge of TCP/IP networking and experience analyzing network traffic and application protocols.
• Experience with Git, structured build processes, and software debugging and testing.
• Ability to independently investigate technical problems and communicate findings clearly through written documentation and technical discussions.

Salary range: $225,000 to $250,000

The salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. The final salary offer will be determined after a thorough review of the candidate's background and alignment with the role.

• Employer-paid health insurance premiums (medical, dental, vision) for you and your family
• Employer-paid short/long term disability insurance and basic life/AD&D insurance
• 401K with a 4% employer contribution
• Professional development reimbursement options available (training, certification, education, etc)
• Flexible and remote work policies for most positions
• Flexible PTO and holiday schedule

SIXGEN is an Equal Opportunity Employer. We ensure that all applicants are considered for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, age, marital status, ancestry, projected veteran status, or any other protected group or class.