Remote New

Penetration Tester - Senior

Nationwide IT Services
United States
Feb 12, 2026
Penetration Tester - Senior Location: Remote, with the ability to regularly travel to Ft. Belvoir, VA for meetings Security Clearance Requirement: Required to possess a DOD SECRET Clearance and be eligible for an IT-I Critical Sensitive security clearance or Tier 5 (T5) upon assignment Position Summary Nationwide IT Services is seeking a Senior Penetration Tester to independently lead penetration testing activities across DoD systems and enclaves. This role will execute advanced offensive testing techniques, develop detailed reports, and provide recommendations to reduce enterprise risk. Key Responsibilities Independently perform penetration testing of applications, systems, and enclaves. Conduct advanced applications, network, and wireless penetration testing. Identify security flaws and develop mitigation strategies. Coordinate testing projects with internal and external system owners. Develop detailed technical reports and executive briefings. Provide guidance and mentoring to junior penetration testing staff. Required Qualifications Six (6) years proven proficiency in vulnerability assessment and penetration testing Three (3) years of experience using testing tools (Nessus, Metasploit, CANVAS, Nmap, Burp Suite, Kismet) Three (3) years of experience with network vulnerability assessments and penetration testing methods Three (3) years of experience writing testing assessment reports Two (2) years of experience administering/troubleshooting Windows Server and IIS Knowledge of TCP/IP protocols and networking architecture Two (2) years of experience administering/troubleshooting a major version of Linux Two (2) years of experience supporting PCI DSS testing Excellent written and oral presentation skills Knowledge of OWASP standards and testing methodologies Knowledge of database, application, and web server design Experience scripting in Perl, Python, Ruby, Bash, or Java Experience with wireless LAN security testing Penetration testing certification (LPT, CEPT, CEH, or GPEN) Preferred Qualifications Experience leading red team activities Experience supporting large-scale DoD cybersecurity programs Why Join Nationwide IT Services? Nationwide IT Services is a trusted government contractor supporting Department of Defense customers. We offer the opportunity to work on high-impact cybersecurity missions alongside experienced professionals in a collaborative and growth-focused environment.