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🥝 Information Systems Security Officer – Senior Consultant

Guidehouse | WASHINGTON, United States | Posted June 10, 2026

Job Description

**Job Family** **:**

Cyber Consulting

**Travel Required** **:**

Up to 10%

**Clearance Required** **:**

Active Top Secret SCI (TS/SCI)

As a Senior Consultant in Guidehouse’s cyber practice, you will lead and execute core security compliance and RMF activities for classified federal systems. You will ensure systems maintain an appropriate security posture, support continuous monitoring, and assist with security assessments and incident coordination. You’ll combine hands on ISSO experience with client-facing consulting: translating mission risk into plans and actions, mentoring junior ISSOs, and advising stakeholders on compliance strategy, metrics, and governance. This blend reflects Guidehouse’s model where senior consultants drive client outcomes, contribute to business development, and support people development across the engagement.

**What You Will Do** **:**

The Information Systems Security Officer ( **ISSO...

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