Posted Sep 1, 2026

Senior Web Application Penetration Tester

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Job Description: • Conduct penetration testing of web applications, APIs, mobile applications, databases, and client-side technologies • Perform application enumeration, endpoint discovery, vulnerability research, and exploitation activities • Identify, validate, and assess vulnerabilities across complex environments • Analyze attack paths and security weaknesses to determine business and operational impact • Develop and utilize custom tools, scripts, and payloads to support testing activities • Perform network mapping, vulnerability analysis, and security assessments across applications and supporting infrastructure • Research emerging vulnerabilities, attack techniques, and exploitation methodologies • Support post-exploitation activities involving cloud and enterprise environments when applicable • Collaborate with clients and internal teams to define scope, review findings, and recommend remediation strategies • Communicate technical concepts and findings to technical and non-technical stakeholders • Produce comprehensive reports including detailed findings, exploitation procedures, risk analysis, and mitigation recommendations • Participate in client meetings and provide ongoing updates throughout assessment activities Requirements: • 5+ years of experience in web application penetration testing or offensive cybersecurity • Demonstrated experience conducting manual web application security assessments • Knowledge of modern web application vulnerabilities, attack methodologies, and exploitation techniques • Experience with network mapping, vulnerability scanning, and penetration testing methodologies • Familiarity with NIST 800-series standards and cybersecurity best practices • Experience developing scripts, payloads, or custom testing tools • Strong analytical, problem-solving, and communication skills • Must be able to obtain a Secret Clearance • One or more listed offensive security certifications strongly preferred, including CWES, CWEE, OSCP, OSWA, OSWE, CRTO, GWAPT, or other relevant hands-on offensive security certifications • Preferred experience with cloud environments, post-exploitation activities, Active Directory security assessments, FISMA compliance requirements, government or regulated industry clients, and common offensive security tools and frameworks Benefits: • Employer-paid health insurance premiums (medical, dental, vision) for you and your family • Employer-paid short/long term disability insurance and basic life/AD&D insurance • 401K with a 4% employer contribution • Professional development reimbursement options available (training, certification, education, etc) • Flexible and remote work policies for most positions • Flexible PTO and holiday schedule