Space ISSO: Cybersecurity & Compliance Lead

Mosaic.tech; Costa Mesa (CA); On-site; USD 112,000 - 149,000; Full time

Benefits offered by this job

Health benefits

Competitive compensation

Data privacy and security programs

Job summary

Anduril Industries is seeking an ISSO to lead day-to-day compliance execution and vulnerability management across assigned systems. You will run scans, validate STIGs, manage access controls, investigate security events, and maintain evidence for the authorization portfolio.

This hands-on security role requires DoD 8570/8140 IAT II or higher, active TS clearance, and experience with ACAS/Tenable, STIGs, NIST 800-53, and security tooling such as Splunk.

Qualifications

• 2+ years of experience in cybersecurity or information assurance with hands-on compliance execution.
• DoD 8570/8140 compliance at IAT Level II or higher (e.g., Security+, CySA+, or CCNA Security).
• Hands-on experience with ACAS/Tenable, SCAP, SCC, or Evaluate-STIG.
• Working knowledge of DISA STIGs, NIST 800-53 security controls, and vulnerability remediation workflows.
• Experience managing user access controls and conducting account/access reviews.
• Active U.S. Top Secret security clearance.

Responsibilities

• Execute vulnerability scanning using ACAS/Tenable across all networks and coordinate remediation of findings with IT Engineering and Networking teams within CAT I/II/III timelines.
• Apply and validate STIGs using Evaluate-STIG, SCAP, SCC, and manual review; document all findings and remediation status.
• Configure and monitor security tooling including Security Center, endpoint protection, and Splunk SIEM — investigating security events and escalating per established incident response procedures.
• Manage user access controls by enforcing least privilege and RBAC across all systems, processing account requests, and conducting regular access reviews.
• Conduct weekly audits and security configuration reviews, monitoring for atypical usage, access anomalies, and unauthorized changes per JSIG requirements.
• Maintain all security artifacts including STIG checklists, scan results, vulnerability reports, compliance matrices, and audit logs.
• Support security assessments by collecting evidence, preparing documentation, and providing technical demonstrations to assessors.

Skills

Cybersecurity

Information Assurance

Security Clearances

Access Control

Tools

ACAS/Tenable

SCAP

Evaluate-STIG

DISA STIGs

NIST 800-53

Splunk

Job description

Anduril Industries is seeking an ISSO to lead day-to-day compliance execution and vulnerability management across assigned systems. You will run scans, validate STIGs, manage access controls, investigate security events, and maintain evidence for the authorization portfolio.

This hands-on security role requires DoD 8570/8140 IAT II or higher, active TS clearance, and experience with ACAS/Tenable, STIGs, NIST 800-53, and security tooling such as Splunk.