**MANTECH** seeks a motivated, career and customer-oriented **Senior** **Information Systems Security Officer (ISSO)** to join our team in **Washington, D.C** . This is an **on-site** position.

The Senior ISSO will leverage their strong technical background and knowledge to support accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to/implementing/documenting required controls, and completing required tasks and actions.

**Responsibilities Include but are not limited to:**

+ Create, update, maintain, and interpret required Body of Evidence (BOE) documentation to navigate system accreditation processes.
+ Ensure the day-to-day implementation, oversight, continuous monitoring, and maintenance of system security configurations and practices.
+ Conduct required vulnerability scans, review reports to identify vulnerabilities, and perform comprehensive vulnerability analysis.
+ Develop, oversee, and track Pla...