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# Information System Security Officer (ISSO)

- **Company:** Apex Systems LLC
- **Location:** Washington, DC, United States
- **Experience:** Experienced
- **Salary:** $100,000.0 - $110,000.0
- **Contract:** Permanent contract
- **Skills:** Xacta, Cyber Security, Identity and Access Management, Information Security Management, Package Development Process, Apex Code
- **Published:** June 9, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8965011/information-system-security-officer-isso

## About the Role

* 7+ years of experience in information security, including system security authorization and compliance
 * 3+ years of experience supporting FISMA compliance and federal security frameworks
 * Experience supporting systems through the Risk Management Framework (RMF) lifecycle, including ATO package development
 * Hands-on experience with security documentation such as POA&Ms, SSPs, and security assessment reports
 * Experience using tools such as Xacta IA Manager and/or CSAM
 * Strong understanding of NIST standards, SELC processes, and federal information security requirements
 * Relevant cybersecurity certification such as CISSP, CASP+, or equivalent IAT/IAM certification

## Description

Apex Systems is currently hiring for an Information System Security Officer with a leading federal government consulting client supporting critical disaster response and recovery operations. This role supports mission-critical systems that ensure the security and integrity of data used to assist communities before, during, and after emergencies.

Project Details / Mission Supported:

 * Support a federal emergency management agency in strengthening cybersecurity posture across enterprise systems
 * Ensure compliance with federal security standards (FISMA/NIST) for systems supporting disaster preparedness and response
 * Partner with engineering and security teams to maintain secure system operations throughout the RMF lifecycle


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