Systems Engineer (TS/SCI w/ Poly)

sixgeninc· Operations
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📍 Columbia, MD

About this role

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 OVERVIEW

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

WHAT YOU'LL DO

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.

KEY RESPONSIBILITIES

Systems Engineering

  • 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.

Technical Leadership & Coordination

  • 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.

Research & Capability Development

  • 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.

QUALIFICATIONS

  • 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.

PREFERRED QUALIFICATIONS

  • 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.

COMPENSATION & BENEFITS

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: $201,000-240,000.

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
  • Professional development reimbursement options available (training, certification, education, etc)​
  • Flexible and remote work policies for most positions
  • Flexible PTO and holiday schedule

For more information, please reach out to our Director of Human Resources, Amy Maxwell at amy.maxwell@sixgen.io.

OUR COMMITMENT

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.

Frequently Asked Questions

Is the salary disclosed for the Systems Engineer (TS/SCI w/ Poly) position at sixgeninc?
The salary for this Systems Engineer (TS/SCI w/ Poly) role at sixgeninc is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Systems Engineer (TS/SCI w/ Poly) position at sixgeninc located?
This Systems Engineer (TS/SCI w/ Poly) role at sixgeninc is based in Columbia, MD. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Systems Engineer (TS/SCI w/ Poly) at sixgeninc belong to?
This Systems Engineer (TS/SCI w/ Poly) position is part of the Operations department at sixgeninc. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Systems Engineer (TS/SCI w/ Poly) position at sixgeninc?
Click the "Apply Now" button on this page. You will be redirected to sixgeninc's official application portal hosted on greenhouse where you can submit your application directly.
When was the Systems Engineer (TS/SCI w/ Poly) job at sixgeninc posted?
This Systems Engineer (TS/SCI w/ Poly) position at sixgeninc was posted on Feb 18, 2026. Apply as soon as possible — early applications are often reviewed first.
Systems Engineer (TS/SCI w/ Poly)
sixgeninc
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