1757 - Cybersecurity Engineer V

Sorry, this job was removed at 08:23 p.m. (UTC) on Thursday, Sep 17, 2026
Hiring Remotely in United States
Remote
145K-165K Annually
Expert/Leader
Hardware • Software • Cybersecurity • Defense
The Role
Leads cybersecurity authorization efforts through the full RMF lifecycle. Evaluates and improves system security posture, remediates cybersecurity findings, develops authorization packages, implements required changes, and coordinates with engineering, DevOps, software teams, leadership, and external stakeholders to achieve and maintain system authorization.
Summary Generated by Built In

Sigma Defense is seeking a Cybersecurity Engineer V to join our team! The Cybersecurity Engineer ensures systems are able to be authorized following RMF process and coordinate the successful navigation of the full RMF lifecycle.

Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.


Requirements
  • 10+ years of relevant Cybersecurity experience.
  • Experience using Enterprise Mission Assurance Support Service (eMASS).
  • Ability to evaluate the security posture of complex systems and execute process and technical improvements to better meet compliance or risk mitigations objectives.
  • Must be a U.S. citizen.

Personnel Clearance Level:

  • Candidate must possess or have the ability to obtain an active Secret security clearance or higher.
  • Clearance may be sponsored for the right candidate.

Education Requirements:

  • Bachelor's degree from an accredited college or university in a Cybersecurity Engineering or related field of study.

Essential Job Duties (not all-inclusive):

  • Coordinates with multi-disciplinary engineering teams to iteratively improve the security posture of the system based on the provided threat analysis and security architecture.
  • Responsible for remediation of cybersecurity findings.
  • Owns the development of multiple cyber security packages for system authorization.
  • Collaborates with DevOps and Software engineers to accredit deployed secure platforms.
  • Leads authorization efforts for the program.
  • Owns authorization package and is responsible for generating deliverables to achieve authorization.
  • Interprets requirements for authorization and implements requires changes.
  • Contributes knowledge and leadership to improve cybersecurity posture of the team and system.
  • Participates effectively in cybersecurity authorization reviews and communicates clearly to leadership, peers, and external stakeholders to ensure maintenance of system authorization.

Salary Range: $145,000 - $165,000 annually.


Benefits
  • Dental and Vision Insurance
  • Medical Insurance to Include HSA, FSA, and DFSA Plans
  • Life and AD&D coverage
  • Employee Assistance Program (EAP)
  • 401(k) Plan with Company Matching Contributions
  • 160 Hours of Paid Time Off (PTO)
  • 12 (Floating) Holidays
  • Educational Assistance
  • Highly Competitive Salary

Skills Required

  • 10+ years of relevant cybersecurity experience
  • Experience using Enterprise Mission Assurance Support Service (eMASS)
  • Ability to evaluate complex system security posture and implement compliance or risk mitigation improvements
  • U.S. citizenship
  • Active Secret security clearance or higher, or ability to obtain one
  • Bachelor's degree in Cybersecurity Engineering or a related field from an accredited college or university

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The Company
800 Employees
Year Founded: 2006

What We Do

Sigma Defense is a leading technology company serving the Department of Defense, specializing in C5ISR, CJADC2, electronic warfare, and DevSecOps. They provide software-defined solutions and hardware to connect warfighters and commands, enabling faster decision-making and mission outcomes. The company has expanded its capabilities through strategic acquisitions like SOLUTE and SUB-U Systems, focusing on digital modernization and tactical edge connectivity for all U.S. military branches.

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