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# Information System Security Officer (ISSO)

- **Company:** ATEA, LLC
- **Location:** Thousand Oaks, CA, United States
- **Experience:** Expert
- **Salary:** $115,000.0 - $185,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Information Systems, Information Security Management, Red Hat Enterprise Linux, Security Information and Event Management, Sysadmin, Information Technology, Tenable Nessus, National Industrial Security Program Operating Manual (NISPOM), Scap Compliance Checker, Vulnerability Analysis
- **Published:** October 18, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=4dab3ffa23f7667a

## About the Role

* Candidate must be a US Citizen and possess at least a Secret Clearance
 * Bachelor's Degree in a related discipline and at least 10 years of experience in cybersecurity or information technology (preference for managing government systems)
 * Candidate must possess appropriate certifications such as CISSP, CASP, CISM or equivalent
 * Experience working with eMASS for collateral systems is required
 * System Admin experience with Red Hat Enterprise Linux (RHEL) and current Windows OS preferred
 * Experience using Tenable Nessus/ACAS Scanning Software or equivalent
 * Knowledge of common security technologies competent hands-on support and configuration ability in at least one security technology (i.e., SIEM)
 * Experience in assessing systems using NIST 800-53, DISA STIGs and SRGs, SCAP Compliance Checker and/or STIG Viewer
 * Candidate should demonstrate familiarity with NISPOM, DAAPM, RMF, CMMC and other NIST (i.e., 800-171) publications
 * Ability to travel as needed, up to 20% (typically less)

## Description

* Drafting RMF documents (SSPs, RARs, POAMs, SCTMs, SOPs, ST&Es, etc.) as well as managing Enterprise Mission Assurance Support Service (eMASS) records for all Collateral Information Systems as required
 * Lead the classified incident handling process and oversee the reporting and investigation of Information System security related incidents
 * Performing sustainment activities, including change management, account management, auditing, media protection, user training, file transfers, etc.
 * Work with system administrators, engineers, and developers to create or update system/site policies, procedures, and process guides
 * Conduct Self Assessments for risk and vulnerability assessments of information systems to identify vulnerabilities, risks, and protection needs