Washington, DC, United States Top Secret w/ SCI On-site only Information Technology Overview GovCIO is currently hiring for a Senior Pentration Tester with an active TS/SCI clearance to support DHS onsite in Washington, DC. Responsibilities The Senior Penetration Tester serves as Key Personnel responsible for leading advanced penetration testing and vulnerability assessment activities within a TS/SCI environment. This role ensures mission-critical security assurance across enterprise systems, a…