Systems Engineer; TS​/SCI w​/Poly Columbia, MD

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.

Position: Systems Engineer
Job Type: Full‑time
Location: Columbia, MD
Clearance Requirements: Active TS/SCI with Polygraph required (U.S. Citizen Only)
Work Schedule: 5 days per week onsite
Experience: 15+ years

We are seeking a Systems Engineer with a diverse set of technical skills and the ability to adapt to unique mission requirements. The selected candidate will support projects focused on developing and implementing next‑generation IT tools, systems, and capabilities while providing technical leadership throughout the engineering lifecycle.

This role requires end‑to‑end responsibility for applied research and cyber capability development efforts, ensuring successful execution from concept through implementation.

• Evaluate, develop, and deliver technical input to the systems engineering process.
• Develop technical documentation, system architecture, and system design documentation.
• Guide system development and implementation planning through system engineering management plans and system integration and test plans.
• Provide engineering guidance throughout the project lifecycle.

• Coordinate with administrators, engineers, developers, testers, government stakeholders, and mission partners.
• Interact with government representatives regarding technical considerations, issues, and conflicts.
• Establish effective working relationships with government agencies and mission partners.
• Deliver briefings on complex topics to technical and executive audiences.

• Support applied research and cyber capability development projects.
• Contribute as a senior technical resource on complex research efforts.
• Ensure solutions are implemented in a sound and secure manner.
• Support mission‑focused engineering activities from concept through deployment.

• Bachelor's degree in Systems Engineering or a related discipline (four years of relevant experience may be substituted for a degree).
• Active CISSP, CASP+ CE, or CSSLP certification (minimum DoD 8570 IASAE Level II certification).
• 15+ years of systems engineering experience.
• Experience developing technical documentation, system architectures, and system designs.
• Experience supporting system development, integration, and implementation activities.
• Experience communicating with technical teams, government stakeholders, and senior leadership.
• Active TS/SCI clearance with Polygraph.

• Exposure to Cloud and AWS environments.
• Knowledge of the DoD Architecture Framework (DoDAF).
• Experience designing and engineering systems from the ground up.
• Experience with network architecture and systems engineering.
• Strong problem‑solving skills and the ability to quickly assess and develop practical technical solutions.

At SIXGEN, we are committed to fair and equitable compensation practices. Compensation for this role will be based on experience, qualifications, technical expertise, and overall alignment with the position. Salary for this position is: $,000.

Additionally, SIXGEN offers top‑tier benefits for full‑time employees, including:

• 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
• 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.

We are committed to fostering an inclusive culture that values diversity in our people, reflecting the communities we serve and our customer base. We strive to attract and retain a diverse talent pool and create an environment where everyone is empowered to be their authentic selves at work.