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Information Systems Security Manager

Los Angeles, CA💼 Full-time🗓 2026-06-29 → 2026-07-31

Core

Serve as the primary security authority for classified information systems, driving risk management and ensuring compliance with government regulations to sustain Authorization to Operate (ATO).

Role type

Senior Information Systems Security Manager (ISSM)

Builds

Classified defense and commercial air operator systems

Domain

Defense / Cybersecurity

Deliverable

client delivery

Required skills

RMF-based ATO management, classified system security (Secret/TS/SCI), security assessment and risk analysis, STIG/SRG hardening, SIEM integration, security incident investigation, security architecture design

Preferred skills

TS/SCI clearance eligibility, experience with Windows Server, RHEL/CentOS, VMware, network security architectures

Technologies

Nessus, ACAS, SCAP, Windows Server, RHEL/CentOS, VMware

Responsibilities

Develop and submit Security Authorization Packages per NIST SP 800-37 RMF; manage full lifecycle of ATOs including continuous monitoring; serve as primary liaison to government Authorizing Officials; conduct security assessments and vulnerability scans; oversee STIG/SRG hardening across OS and network infrastructure; supervise ISSOs and conduct security training; investigate security incidents and anomalies; implement continuous monitoring strategies including log management and SIEM integration.

Seniority

Senior, hands-on IC

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