Information Systems Security Manager (Cybersecurity)

TL;DR

Information Systems Security Manager (Cybersecurity): Managing the security posture and authorization boundaries for classified information systems with an accent on risk management and government compliance. Focus on sustaining Authorization to Operate (ATO), implementing RMF frameworks, and overseeing system hardening.

Location: Onsite in Hawthorne, California, United States

Salary: $140,000 - $200,000

Company

hirify.global is a defense technology company redefining modern defense through Coherent Distributed Networks (CDN™).

What you will do

• Develop and maintain Security Authorization Packages following NIST SP 800-37 RMF, ICD 503, JSIG, and DAAPM frameworks.
• Manage the full ATO lifecycle, including continuous monitoring, annual reviews, and Plan of Action & Milestones (POA&Ms).
• Conduct security assessments, risk analyses, and vulnerability scans using Nessus, ACAS, and SCAP.
• Oversee the implementation of STIG/SRG hardening across Windows, Linux, and network infrastructure.
• Supervise and mentor ISSOs and conduct security briefings for cleared program personnel.
• Collaborate with government Authorizing Officials (AOs) and cross-functional engineering teams to ensure compliance.

Requirements

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

Nice to have

• Active TS/SCI clearance.
• Experience with Special Access Programs (SAPs) and SCIFs.
• Familiarity with Cross Domain Solutions (CDS) and Type 1 encryption devices.
• Knowledge of CMMC Level 2/3 requirements.
• Experience with AWS GovCloud or Azure Government.

Culture & Benefits

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