Washington, DC, USA

Full-time

Clearance Requirement: Secret

**Company Description**

Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.

**Job Description**

**Overview**

SOSi is seeking a Penetration Tester III to support proactive cyber defense activities in alignment with our customer. This role is responsible for conducting penetration testing and red team activities, assessing security posture across enterprise environments, and supporting identification, validation, and reporting of vulnerabilities to improve cyber defense resilience.

**Responsibilities**

· Conduct penetration testing across enterprise systems, applications, and network environments

· Perform red team activities...