NewSenior Penetration Tester Govcio LLCSenior Penetration TesterWashington, DC$124,540–$180,000 / yearThis role ensures mission‑critical security assurance across enterprise systems, applications, and cloud infrastructures by applying deep technical expertise, zero‑trust principles, and attacker‑focused methodologies. Conduct deep technical analysis of vulnerabilities including buffer overflows, SQL injection, CSRF, XSS, race conditions (TOCTOU), XXE, encryption weaknesses, authentication bypass, and similar issues.
IoT Engineer System OneIoT EngineerMerrifield, VARemote$80 / hourPartner with sensor specialists to manage new sensor data streaming to the IoT platform, and with data scientists and machine learning engineers to take on analytic results and develop it to an application with a user interface, integrate with any pre-existing systems, demonstrate successful use cases and wins, etc. Work with Industry solution providers, equipment manufacturers, and the Enterprise Resource Planning vendor to design and implement the required system integration points and data flow to achieve best-in-class lights-out operations.
Senior Penetration Tester CoStar GroupSenior Penetration TesterArlington, VirginiaCollaborate with detection engineering and incident response on purple team exercises, validating that preventative and detective controls behave as expected against realistic adversary techniques. Demonstrated experience with web application and API penetration testing, including identifying and exploiting attack chains across complex application logic, authentication, and authorization flows.
Senior ISSE/Penetration Tester TS/SCI Polygraph LeidosSenior ISSE/Penetration Tester TS/SCI PolygraphAnnapolis Junction, MarylandThe selected candidate will have a range of day-to-day responsibilities across multiple activities, including the following: Validating and verifying system security requirements and establishing system security designs for large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components. April 28, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Penetration Tester, Senior (TS/SCI Clearance) Praescient Analytics LLCPenetration Tester, Senior (TS/SCI Clearance)Arlington, VA$110,000–$160,000 / yearPosition Overview: Praescient Analytics is seeking a highly motivated Penetration Tester to join our cybersecurity team in Arlington, VA, supporting the Department of War (DoW) Chief Digital and Artificial Intelligence Office's (CDAO) War Data Platform (WDP)-formerly known as Advana. You will conduct comprehensive penetration tests across applications, networks, and hybrid-cloud systems hosting hundreds of curated analytics tools, actively identifying and exploiting vulnerabilities to validate and strengthen the platform's security posture against advanced threats.
Penetration Tester, Mid (TS/SCI Clearance) Praescient Analytics LLCPenetration Tester, Mid (TS/SCI Clearance)Arlington, VA$90,000–$130,000 / yearPosition Overview: Praescient Analytics is seeking a highly motivated Penetration Tester to join our cybersecurity team in Arlington, VA, supporting the Department of War (DoW) Chief Digital and Artificial Intelligence Office's (CDAO) War Data Platform (WDP)-formerly known as Advana. You will conduct comprehensive penetration tests across applications, networks, and hybrid-cloud systems hosting hundreds of curated analytics tools, actively identifying and exploiting vulnerabilities to validate and strengthen the platform's security posture against advanced threats.
Penetration Tester / Active Secret PeratonPenetration Tester / Active SecretArlington, Virginia$86,000–$138,000 / yearFull timePossess one of the following certifications, OR be able to obtain before start date: CCNA Cyber Ops, CCNA-Security, CEH, CFR, Cloud+, CySA+, GCIA, GCIH, GICSP, SCYBER, Security+ CE, SSCP. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Lead Penetration Tester Revolutional, LLCLead Penetration TesterWashington, DC$110,000–$150,000 / yearGPEN (GIAC Penetration Tester), GXPN (GIAC Exploit Researcher and Advanced Penetration Tester), OSCP (Offensive Security Certified Professional), or equivalent offensive security credential. You develop test plans, lead technical execution, produce security assessment reports and criticality matrices, and deliver out-brief presentations directly to agency CIO and CISO-level audiences.
Penetration Tester Booz Allen HamiltonPenetration TesterUsa, MarylandOffensive Security Certified Professional (OSCP), HTB Certified Penetration Tester Specialist (CPTS), eLearnSecurity Junior Penetration Tester (EJPT), GIAC Global Information Assurance Penetration Tester (GPEN), or GIAC Cloud Penetration Tester Certification. Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.
Senior Penetration Tester CoStar Group IncSenior Penetration TesterArlington, VAIncluded in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the worlds real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. Collaborate with detection engineering and incident response on purple team exercises, validating that preventative and detective controls behave as expected against realistic adversary techniques.
Senior Isse/Penetration Tester Ts/Sci Polygraph Leidos Holdings Inc.Senior Isse/Penetration Tester Ts/Sci PolygraphAnnapolis Junction, MD$131,300–$237,350 / yearThe selected candidate will have a range of day-to-day responsibilities across multiple activities, including the following: Validating and verifying system security requirements and establishing system security designs for large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components. Must have experience developing and implementing integrated security services management processes, such as assessing and auditing network penetration testing, anti-virus planning assistance, risk analysis, and incident response.
Senior ISSE/Penetration Tester TS/SCI Polygraph Leidos Holdings IncSenior ISSE/Penetration Tester TS/SCI PolygraphAnnapolis Junction, MD$131,300–$237,350 / yearThe selected candidate will have a range of day-to-day responsibilities across multiple activities, including the following: Validating and verifying system security requirements and establishing system security designs for large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components. Must have experience developing and implementing integrated security services management processes, such as assessing and auditing network penetration testing, anti-virus planning assistance, risk analysis, and incident response.
Penetration Tester SkyePoint DecisionsPenetration TesterArlington, Virginia$95,000–$112,000 / yearSkyePoint Decisions is a leading Cybersecurity Architecture and Engineering, Critical Infrastructure and Operations, and Applications Development and Maintenance IT service provider headquartered in Dulles, Virginia with operations across the U.S. We provide innovative enterprise-wide solutions as well as targeted services addressing the complex challenges faced by our federal government clients. SkyePoint Decisions is seeking a Penetration Tester to support the Diplomatic Security Cyber Mission (DSCM) program providing leading cyber and technology security experience to enable innovative, effective, and secure business processes.
Enterprise Cybersecurity Penetration Tester Booz Allen Hamilton IncEnterprise Cybersecurity Penetration TesterMcLean, VA$86,800–$198,000 / yeararrow-right Missions arrow-right Civil Government arrow-right Commercial arrow-right Cyber Fusion Centers arrow-right Cybersecurity Strategy arrow-right Incident Response arrow-right Defense arrow-right Energy Resources & Utilities arrow-right Health arrow-right Homeland Security & Law Enforcement arrow-right Intelligence arrow-right International arrow-right Asia Pacific arrow-right Europe arrow-right Space arrow-right Transportation. arrow-right Careers arrow-right Search Jobs arrow-right Teams & Missions arrow-right Life at Booz Allen arrow-right Benefits Flexibility Professional Development arrow-right Locations arrow-right Recruiting & Networking Events arrow-right Military Talent arrow-right University Talent arrow-right Candidate Resources arrow-right Returning Applicants.
Penetration Tester / Active Secret Peraton IncPenetration Tester / Active SecretArlington, VA$86,000–$138,000 / yearPossess one of the following certifications, OR be able to obtain before start date: CCNA Cyber Ops, CCNA-Security, CEH, CFR, Cloud+, CySA+, GCIA, GCIH, GICSP, SCYBER, Security+ CE, SSCP. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Xcelerate Solutions Careers - Penetration Tester Xcelerate SolutionsXcelerate Solutions Careers - Penetration TesterAlexandria, VAThis strong commitment to our employees has been recognized by our inclusion on the Washington Business Journal's "50 Best Places to Work" list as well as being a "Great Place to Work" certified company with a 4.6 star, and a 99% CEO approval Glassdoor rating. Apply established penetration-testing methodologies and commercial or open-source offensive tools across networks, web applications, applications, and code, including support to Red and Blue Team activities.
Penetration Tester Xcelerate Solutions LLCPenetration TesterAlexandria, VAThis strong commitment to our employees has been recognized by our inclusion on the Washington Business Journal's "50 Best Places to Work" list as well as being a "Great Place to Work" certified company with a 4.6 star, and a 99% CEO approval Glassdoor rating. Apply established penetration-testing methodologies and commercial or open-source offensive tools across networks, web applications, applications, and code, including support to Red and Blue Team activities.
NewPenetration Tester gTANGIBLE CorporationPenetration TesterArlington, VirginiaThe Penetration Testersupports this Transportation Security Administration Information Technology (TSA IT) Task Order (TO) by performing security attacks against all types of IT assets, and exploiting vulnerabilities found to determine if further reach within the engagement scope can be obtained. Evaluation of technologies proposed by the Innovation Task Force’s Advancing the Checkpoint Environment (ACE), with Requirements and Capability Analysis (RCA) features, in support of the Acquisitions and Program Management (APM) teams in the Transportations Security Integration Facility (TSIF).
Senior Penetration Tester Accenture Federal ServicesSenior Penetration TesterArlington, VAThe pay range for the states of California, Colorado, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Virginia, Washington, and the District of Columbia, and the city of Cleveland is: $106,300—$221,100 USD What We Believe As a company wholly dedicated to serving the US federal government, we bring together the best talent to help reinvent how federal agencies operate and deliver greater value for their mission and the American people. As required by local law, Accenture Federal Services provides reasonable ranges of compensation for hired roles based on labor costs in the states of California, Colorado, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Virginia, Washington, and the District of Columbia, and the city of Cleveland .
Jr Cyber Penetration Tester PeratonJr Cyber Penetration TesterArlington, Virginia$66,000–$106,000 / yearFull timeThis Federal Strategic Cyber program encompasses technical, engineering, data analytics, cyber security, management, operational, logistical and administrative support to aid and advise the Cyber & Technology Security (CTS) Directorate. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.