We are seeking a detail-oriented and mission-driven Staff Information Systems Security Officer (ISSO) to support our Federal Systems Team and ensure the security, compliance, and integrity of our classified information systems. This is an on-site role within a high-performance classified IT environment. The Staff ISSO will play a critical role in safeguarding systems by implementing and maintaining cybersecurity controls, supporting system accreditation, and ensuring compliance with DoD and Intelligence Community (IC) security requirements. This role is central to enabling secure operations across multiple classification levels, including environments leveraging Cross Domain Solutions (CDS). What you'll do: Information Assurance & Security Compliance: • Implement and monitor cybersecurity controls in accordance with RMF and NIST 800-53 • Ensure compliance with DoD and IC requirements • Review configurations, audit logs, and controls regularly RMF & Accreditation Support: • Support RMF lifecycle activities • Maintain SSPs, POA&Ms, and related artifacts • Coordinate with ISSM, AO, and stakeholders Continuous Monitoring & Risk Management: • Perform vulnerability management and patch tracking • Analyze scan results (ACAS/Nessus) • Report system risk posture Incident Response & Audit Support: • Support incident response activities • Assist with audits and inspections • Maintain audit-ready documentation Cross Domain Solutions (CDS) Security Oversight: • Support CDS accreditation and compliance • Validate configurations and data flows • Coordinate with CDS administrators System Hardening & Configuration Management: • Ensure STIG compliance • Maintain secure baselines • Review configuration changes Collaboration & Advisory: • Work with engineers and admins on secure design • Provide guidance on MLS environments Required qualifications: • 8 years in cybersecurity or ISSO roles in classified environments • Experience with RMF and NIST 800-53 • Familiarity with STIGs and vulnerability tools Preferred qualifications: • IC or SAP environment experience • eMASS familiarity • Scripting experience (Python, PowerShell, Bash) • Bachelor's degree or equivalent experience $120,000 - $190,000 a year #LI-ML2 #LD Full-time regular employee offer package: Pay within range listed + Bonus + Benefits + Equity Temporary employee offer package: Pay within range listed above + temporary benefits package (applicable after 60 days of employment) Salary compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, licenses and certifications, and specific work location. All offers are contingent on a cleared background and possible reference check. Military fellows and part-time employees are not eligible for benefits. Please speak to your talent acquisition representative for more information.