Information Systems Security Manager (Cybersecurity)

TL;DR

Information Systems Security Manager (Cybersecurity): Serving as the primary security authority for classified information systems across Program Security Authorization Boundaries with an accent on RMF compliance, risk management, and ATO lifecycle maintenance. Focus on driving security posture for complex, multi-domain environments and ensuring adherence to government regulations like ICD 503 and JSIG.

Location: Must be based in El Segundo, California, United States

Salary: $140,000 - $200,000

Company

hirify.global is a defense technology company building multi-product portfolios powered by Coherent Distributed Networks to provide domain dominance for warfighters and commercial operators.

What you will do

• Develop and maintain system Security Authorization Packages in accordance with NIST SP 800-37, ICD 503, and JSIG frameworks.
• Manage the full lifecycle of Authorizations to Operate (ATO) including continuous monitoring and POA&Ms.
• Conduct security assessments, risk analyses, and vulnerability scans using tools like Nessus and ACAS.
• Oversee STIG/SRG hardening requirements across Windows, Linux, and network infrastructure.
• Supervise and mentor ISSOs while providing guidance on security artifacts and compliance.
• Investigate and report security incidents and anomalies in accordance with government reporting requirements.

Requirements

• Bachelor's degree in a technical discipline or equivalent experience.
• 8+ years of information security experience with at least 4 years in an ISSM or senior ISSO role on classified U.S. Government programs.
• Active Secret clearance required at time of hire; TS/SCI eligibility preferred.
• IAM Level III certification (CISSP, CISM, or GSLC) required.
• Demonstrated experience managing RMF-based ATOs for classified systems.
• Hands-on experience with Windows Server, RHEL/CentOS, VMware, and network security architectures.

Nice to have

• Active TS clearance.
• Experience with Special Access Programs (SAPs) and SCIFs.
• Knowledge of CMMC Level 2/3 requirements.
• Experience with cloud security in classified or CUI environments.
• Additional certifications such as CAP, Security+, CASP+, or CEH.

Culture & Benefits

• 100% company-paid medical, dental, and vision benefits.
• 401k with 50% company match up to 6% of pay.
• Unlimited PTO and 'No meeting Fridays'.
• Free daily lunch and casual dress code.
• Generous pre-IPO stock option grants.
• Relocation assistance provided.