Security Control Assessor Representative (SCAR) with Security Clearance

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