Senior Penetration Tester / Vulnerability Assessment Engineer

Tharros supports the Department of Homeland Security (DHS) with cybersecurity services across its Intelligence Enterprise. In support of this mission, we have an immediate opportunity for a Senior Penetration Tester / Vulnerability Assessment Engineer. In this role you will identify, assess, and validate vulnerabilities across DHS Intelligence Enterprise cloud and on-premise systems through penetration testing, software assurance, and vulnerability assessment. You will emphasize manual, expert-driven techniques to find what automated tools miss and validate SOC detection and response. This position is on-site in a Government SCIF in Washington, DC. Duties include but not limited to: Perform penetration tests across the DHS IE portfolio using standard methodologies (e.g., MITRE ATT&CK, OWASP), from rules of engagement through exploitation, post-exploitation, and reporting.Use manual techniques to find vulnerabilities commonly missed by automated tools.Validate SOC incident response procedures through controlled testing.Perform software assurance through vulnerability and compliance testing of software requests; provide approval recommendations.Conduct source code reviews using automated tools and manual processes.Perform vulnerability assessments and supply chain risk management reviews.Maintain the security posture of the penetration testing kit.Update penetration testing, SCRM, and vulnerability assessment SOPs.