Senior IT Security Lead - Enterprise Defense

Orange County; Santa Ana (CA); On-site; USD 120,000 - 170,000; Full time

Job summary

Orange County Sheriff's Department is seeking a Sr. IT Security Administrator to lead a security-operations-focused team, protect the OC Sheriff's network, and ensure CJIS/NIST/ISO compliance across infrastructure and cloud environments.

The role includes coordinating incident response, remediation, and audits, while improving security postures and awareness across the agency. Ideal candidates will have hands-on experience with enterprise security platforms (Palo Alto XSIAM/XDR), identity

Responsibilities

• Monitor security telemetry; validate alerts; investigate suspected compromise; contain, eradicate, and coordinate recovery; preserve evidence; document incidents in approved workflows.
• Administer and tune enterprise security platforms, including Palo Alto XSIAM/XDR, endpoint controls, logging and detection rules.
• Conduct vulnerability, exposure, and risk management: assess findings, validate exploitability, assign remediation priorities, coordinate actions, verify closure.

Job description

Orange County Sheriff's Department is seeking a Sr. IT Security Administrator to lead a security-operations-focused team, protect the OC Sheriff's network, and ensure CJIS/NIST/ISO compliance across infrastructure and cloud environments.

The role includes coordinating incident response, remediation, and audits, while improving security postures and awareness across the agency. Ideal candidates will have hands-on experience with enterprise security platforms (Palo Alto XSIAM/XDR), identity