Security Control Assessor Representative; SCAR) Security Clearance
Job in
El Segundo, Los Angeles County, California, 90245, USA
Listed on 2026-09-04
Listing for:
Astrion
Full Time
position Listed on 2026-09-04
Job specializations:
-
IT/Tech
Cybersecurity, Information Security & Data Protection
Job Description & How to Apply Below
Overview Senior Cybersecurity Engineer (SCAR)
Location:
El Segundo, CA Job Status:
Full time SALARY RANGE:
Estimated $160,000 + annually
* * depending on experience, certifications, and qualifications
Clearance Required:
Active DoD TS/SCI Astrion is seeking a Senior Cybersecurity Engineer SME to join our prime contract supporting STS-3 in El Segundo, CA. This role will provide direct Assessment & Authorization (A&A) support to the Space Systems Command Authorizing Officia and Security Conrol Assessor (SCA), ensuring the secure operations of enterprise networks, mission-critical systems, and sensitive data across Space Systems Command (RDT&E) Authorizing Official (AO) subordinate enclave.
You will play a hands-on role in Cybersecurity Analysis, Engineering, and Risk Management Framework (RMF) compliance, and Enterprise policy driving mission assurance for some of the nation's most important space systems. REQUIRED QUALIFICATIONS / SKILLS
• 15+ years of cybersecurity experience supporting USSF, DoD, or related federal organizations.
• Familiarity with Risk Management Framework (RMF) protocols.
• Knowledge of USSF A&A procedures with hands-on experience with eMASS
• Active DoD TS/SCI clearance (with current investigation).
• CompTIA Security+ or equivalent DoD 8570/8140 IAT/IAM certification. PREFERRED QUALIFICATIONS / SKILLS
• Prior SCA / SCAR / ASCA experience within DoW and USSF.
• CISSP, GIAC, or equivalent advanced cybersecurity certification.
• Strong organizational, interpersonal, and communication skills with attention to detail.
• Technical MA or MS degree
• Advanced skills in Microsoft Word, Excel, PowerPoint, and Outlook. RESPONSIBILITIES
• Support the Authorizing Official and Security Control Assessor by ensuring adherence to the DoD RMF process, driving cyber‑hardening efforts, and tracking progress along the Road to ATO.
• Support A&A activities and provide cybersecurity engineering expertise for enterprise mission systems.
• Develop, update, and manage Enterprise Mission Assurance Support Service (eMASS) entries and coordinate A&A packages in accordance with DoDI 8510.01 (RMF).
• Maintain and report on C&A schedules, package status, and system registrations in ITIPS (formerly EITDR) in compliance with FISMA.
• Review and refine certification policies, procedures, and reports for new and evolving cyber system requirements.
• Conduct research and analysis to assess the impact of new DoD, USSF, DIA, and DISA cybersecurity directives.
• Support Vulnerability Management System (VMS) processes by documenting, tracking, and closing compliance findings.
• Contribute to Security Test & Evaluation (ST&E) efforts, penetration testing, and validation of cybersecurity controls.
• Revalidate cyber and IA controls for accredited systems and recommend improvements to strengthen mission assurance.
• Assess policy changes from higher headquarters and determine impact on current mission system security posture.
• Travel is required during onsite assessments. #CJ
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