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Staff Information Systems Security Officer (R5789)

Washington, DC💼 Full-time🗓 2026-09-02 → 2026-09-26

Core

Staff Information Systems Security Officer ensuring security, compliance, and integrity of classified information systems for a defense-tech company.

Role type

Staff Information Systems Security Officer (ISSO)

Builds

Secure classified IT environments supporting defense operations

Domain

Defense technology / Classified Information Systems

Deliverable

production ML models | infrastructure

Required skills

RMF lifecycle management, NIST 800-53 compliance, vulnerability management, STIG compliance, incident response support, audit documentation, Cross Domain Solutions (CDS) oversight, configuration management

Preferred skills

IC or SAP environment experience, eMASS familiarity, scripting (Python, PowerShell, Bash)

Technologies

ACAS, Nessus, eMASS

Responsibilities

Implement and monitor cybersecurity controls per RMF and NIST 800-53; Support RMF lifecycle activities and maintain SSPs/POA&Ms; Perform vulnerability management and patch tracking; Support incident response and maintain audit-ready documentation; Validate CDS configurations and data flows; Ensure STIG compliance and maintain secure baselines.

Seniority

Staff, hands-on IC with strategic oversight

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