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Senior Information System Security Officer (ISSO)

Dulles, Virginia💼 Full-time💰 $160,200–$160,200🗓 2026-07-10 → 2026-09-26

Core

Senior ISSO responsible for cybersecurity approval, compliance, and risk mitigation for mission-critical national security network infrastructure.

Role type

Senior IC Information System Security Officer

Builds

Secure network infrastructure supporting intelligence and national security operations

Domain

National Security / Cybersecurity / Defense

Deliverable

production ML models | infrastructure

Required skills

Active TS/SCI with Polygraph, security plan review and approval, system lifecycle security integration, risk assessment and mitigation, network architecture review, stakeholder briefing

Preferred skills

System accreditation support, RMF/NIST framework knowledge, intelligence community customer support, CISSP/GSLC certification

Technologies

NIST, RMF

Responsibilities

Support system owners through cybersecurity approval and compliance processes, Review technical architectures and network designs, Interpret cybersecurity requirements for stakeholders, Ensure cybersecurity requirements are integrated throughout the system lifecycle, Develop and maintain security documentation, Assess system risks and recommend mitigation strategies, Support security reviews, audits, and accreditation activities

Seniority

Senior, hands-on IC

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