1 to 25 of 76 Penetration Tester Jobs

Overview VTG is looking for multiple levels (Level 2, 3 & 4) of a Penetration Tester in Chantilly VA and Aurora CO. (Note: position is contingent upon program award and the postions are located in Chantilly VA & Auroro CO) A Penetration Tester (Pen Tester) is a security professional who reviews and evaluates NRO ISs and recommends … performing security focused services to improve the security posture of NRO ISs. Travel: 25% estimate for pen testers (OCONUS travel 2x per year). What will you do? Pen Tester, Level 2 (Intermediate) Functional Description: In addition to being responsible for performing basic reconnaissance and vulnerability scanning in accordance with established testing methodologies; identifies common vulnerabilities that can be … potentially exploited, documents and reports findings. Possess basic scripting abilities and an understanding of network fundamentals and vulnerability scanning tools. the Level 2 Pen Tester is responsible for conducting more complex penetration tests, exploring more complex vulnerability analysis including misconfigurations and zero-day exploits, and developing more sophisticated exploitation techniques. Leads penetration tests, mentoring junior testers, and More ❯

Job Number: R Penetration Tester Key Role: C ond uct testing and analysis to identify vulnerabilities and potential threat vectors in systems and networks, develop exploits, and engineer attack methodologies. Apply advanced advising skills, extensive technical expertise, and full industry knowledge. Develop innovative solutions to complex problems. Work without considerable direction, and mentor and supervise team members, as … needed. Basic Qualifications: 3+ years of experience with cyber penetration testing or developing risk and threat mitigation plans 3+ years of experience operating in Linux, Windows, and virtual platforms 3+ years of experience with computer attack methods and system exploitation techniques 3+ years of experience leveraging adversarial tactics to c ond uct hands-on security testing 3+ years of … tools, tactics, and techniques targeting Cloud services and their ecosystems Bachelor's degree in CS, Information Systems, Engineering, or a related field Offensive Security Certified Professional ( OSCP ) , HTB Certified Penetration Tester Spe cia list ( CPTS ) , eLearnSecurity Junior Penetration Tester ( EJPT ) , GIAC Global Information Assurance Penetration Tester ( GPEN ) , or GIAC Cloud Penetration Tester More ❯

Senior Penetration Tester Location: Fully Remote (UK-Based) Salary Range: £50,000 - £75,000 (dependent on experience) Position: Permanent, Full-Time My client is a dynamic and growing cybersecurity consultancy dedicated to providing top-tier security services to a diverse range of clients. They believe in empowering the team with the flexibility of remote work while tackling challenging … and engaging projects that make a real difference to their clients' security posture. The Role We are seeking a highly skilled and motivated Senior Penetration Tester to join our remote team. You will be responsible for leading and executing complex penetration tests against a variety of systems, networks, and applications. The ideal candidate is not just a … proficient tester but a critical thinker who can articulate risks clearly and provide pragmatic remediation advice to clients. Key Responsibilities Plan, lead, and execute sophisticated penetration tests across infrastructure, web applications, APIs, and internal networks. Conduct advanced Red Team exercises to simulate real-world adversary attacks and test organisational defences. Produce high-quality, clear, and concise reports for More ❯

Penetration Tester - Leading Managed Services Provider Remote based. Salary: Up to 60k, depending on experience. A leading Managed Services Provider are seeking to recruit a technically skilled Cyber Security/Penetration Tester. This is a fantastic opportunity to join a well-established organisation delivering high-quality security services to enterprise clients across the UK. As a Penetration Tester, you will be responsible for conducting manual penetration testing across both application and infrastructure layers. You will contribute to secure build reviews, advise on secure design practices, and provide technical insight to both internal teams and clients. Key Responsibilities Perform manual penetration testing of web applications and infrastructure Conduct security build reviews across common operating … and concise technical reports for a range of stakeholders Collaborate with internal teams and clients to support remediation and secure development Required Skills and Experience Proven experience in manual penetration testing (application and infrastructure) Strong understanding of TCP/IP and core networking principles Extensive experience testing web-based applications Familiarity with secure configuration and build reviews across major More ❯

Penetration Tester - Leading Managed Services Provider Remote based. Salary: Up to 60k, depending on experience. A leading Managed Services Provider are seeking to recruit a technically skilled Cyber Security/Penetration Tester. This is a fantastic opportunity to join a well-established organisation delivering high-quality security services to enterprise clients across the UK. As a Penetration Tester, you will be responsible for conducting manual penetration testing across both application and infrastructure layers. You will contribute to secure build reviews, advise on secure design practices, and provide technical insight to both internal teams and clients. Key Responsibilities Perform manual penetration testing of web applications and infrastructure Conduct security build reviews across common operating … and concise technical reports for a range of stakeholders Collaborate with internal teams and clients to support remediation and secure development Required Skills and Experience Proven experience in manual penetration testing (application and infrastructure) Strong understanding of TCP/IP and core networking principles Extensive experience testing web-based applications Familiarity with secure configuration and build reviews across major More ❯

is a privately held minority owned, small-business headquarter in Fulton, MD just outside of Baltimore and Washington D.C. About the role Strategic Analytix is looking for a skilled Penetration Tester who will serve as the Subject Matter expert providing testing expertise of the Risk Management Framework. The Penetration Tester will direct and/or participate … in the testing phase of security controls assessments using specialized knowledge of network protocols, operating systems, architectures, equipment, services, and standards. What you'll do Penetration Tester Requirements Perform vulnerability and penetration testing using a wide variety of tools. Research and evaluate emerging technologies relevant to information systems security; interpret agency specific and federal security regulations. Perform … protocols and methods. Qualifications Clearance Level TS/SCI level clearance with a Full Scope Polygraph. Skill Level 3: Experience: Eight (8) experience of related work experience as a Penetration Tester performing both network and application-level testing using established test protocols and methods. Education: A Bachelor's degree in Computer Science or Information Technology Engineering. In lieu More ❯

three key offices/functional areas: Cyber Monitoring and Operations, Cyber Threat and Investigations, and Technology Innovation and Engineering State. About The Role Peraton is seeking an experienced Cyber Penetration Tester to become part of Peratons' Federal Strategic Cyber programs. Location: Northern VA; Hybrid - flex as long as person can come on-site as/when needed. In … this role, you will: Support the Red Cell Team by performing and leading penetration tests to assess the security of customer systems. Identify vulnerabilities and develop recommended remediations to satisfy mandated NIST 800-53 security controls. Report and demonstrate findings to system owners and engineers. Maintain Red Cell infrastructure. Develop or modify tools to automate discovery or exploitation. Qualifications … IT, or a Master's of Science and 3 years of relevant experience in Cyber/IT. In lieu of a degree, 4 years of additional IT security or penetration testing experience may be considered. Minimum of 2 years with penetration testing experience. Possess one of the following certifications, OR be able to obtain before start date: CCNA More ❯

Penetration Tester Job Category: Security Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: The Opportunity: We are seeking an experienced and knowledgeable Penetration Tester to serve as a Subject Matter Expert (SME) for our cybersecurity team. In this role … you will provide specialized expertise in testing security controls and contribute to the Risk Management Framework (RMF) process. The ideal candidate will have a strong background in penetration testing, network protocols, operating systems, architectures, equipment, and security standards. You will be responsible for leading and participating in security control assessments to identify vulnerabilities and recommend improvements to enhance the … security posture of our systems and networks. Key Responsibilities: Perform vulnerability and penetration testing using a wide variety of tools Research and evaluate emerging technologies relevant to information systems security; interpret agency specific and federal security regulations Perform both network and application-level testing using established testing protocols and methods Qualifications: Required: Current Active TS/SCI with Poly More ❯

Penetration Tester - Hybrid (Wokingham) - Circa 400 per day inside ir35 - 2/3 months+ All applicants must hold an active SC clearance. My client is a global leading IT consultancy. They are on the hunt for an SC cleared PEN Tester to join them on an assigment until the end of the year. Key Responsibilities Conduct manual … and automated penetration tests on web applications, networks, APIs, and mobile platforms Identify, exploit, and document security vulnerabilities with detailed risk assessment Develop and execute red team exercises and threat simulations Collaborate with development and infrastructure teams to remediate findings Prepare comprehensive reports outlining findings, impact, and mitigation strategies Stay current with latest attack vectors, tools, and security trends … Assist in security awareness training and internal education efforts Contribute to security policies and best practices development Required Skills & Qualifications Proven experience in penetration testing, ethical hacking, or red teaming Strong understanding of OWASP Top 10, MITRE ATT&CK, and CVSS scoring Proficiency with tools like Burp Suite, Metasploit, Nmap, Wireshark, Kali Linux Familiarity with scripting languages (Python, Bash More ❯

Penetration Tester - Hybrid (Wokingham) - Circa £400 per day inside ir35 - 2/3 months+ All applicants must hold an active SC clearance. My client is a global leading IT consultancy. They are on the hunt for an SC cleared PEN Tester to join them on an assigment until the end of the year. Key Responsibilities Conduct manual … and automated penetration tests on web applications, networks, APIs, and mobile platforms Identify, exploit, and document security vulnerabilities with detailed risk assessment Develop and execute red team exercises and threat simulations Collaborate with development and infrastructure teams to remediate findings Prepare comprehensive reports outlining findings, impact, and mitigation strategies Stay current with latest attack vectors, tools, and security trends … Assist in security awareness training and internal education efforts Contribute to security policies and best practices development Required Skills & Qualifications Proven experience in penetration testing, ethical hacking, or red teaming Strong understanding of OWASP Top 10, MITRE ATT&CK, and CVSS scoring Proficiency with tools like Burp Suite, Metasploit, Nmap, Wireshark, Kali Linux Familiarity with scripting languages (Python, Bash More ❯

Penetration Tester (SC Cleared) Location: Wokingham - Hybrid working (50/50 split) Contract Duration: Until 26/12/2025 initially - with a view to extend Daily Rate: £525/day Inside IR35 - Candidates will need to work through an Umbrella Company Clearance Required: Active SC Clearance We are looking for an experienced Penetration Tester to … team. This role offers the opportunity to work on a hybrid basis, engaging in high-impact security assessments across various platforms and environments. Key Responsibilities: Conduct manual and automated penetration tests on web applications, networks, APIs, and mobile platforms Identify, exploit, and document vulnerabilities, delivering detailed risk assessments Design and execute red team exercises and threat simulations Work closely … on emerging threats, tools, and techniques Support internal security awareness training and initiatives Contribute to the development of security policies and best practices Required Skills & Experience: Strong background in penetration testing, ethical hacking, or red teaming Deep knowledge of OWASP Top 10, MITRE ATT&CK, and CVSS scoring systems Proficiency with tools such as Burp Suite, Metasploit, Nmap, Wireshark More ❯

clients with expert intelligence analysis services. Our clients include defense contractors, industrial and service corporations, and departments and agencies of the U.S. Federal Government. We are actively searching for Penetration Tester Skill Level 3 , located in Maryland , to support our team. We have varying levels of this position, depending on years of experience and education. Essential Job Duties … Direct and/or participate in the testing phase of security controls assessments using specialized knowledge of network protocols, operating systems, architectures, equipment, services, and standards. The Level 3 Penetration Tester shall possess the following capabilities Perform vulnerability and penetration testing using a wide variety of tools Research and evaluate emerging technologies relevant to information systems security … specific and federal security regulations Perform both network and application-level testing using established testing protocols and methods Required Qualifications 8 years experience of related work experience as a Penetration Tester performing both network and application-level testing using established test protocols and methods Bachelor's degree in Computer Science or a related field (e.g. General Engineering, Computer More ❯

Are you ready to lead projects that protect and secure digital assets? Ardent Principles is searching for a full-time Cyber Security Penetration Tester to enhance our security initiatives onsite, full-time in Northern Virginia. If you're passionate about cyber security, thrive on managing impactful projects, and are ready to make a difference, this is the role … because your satisfaction leads to the success of our clients. Key Responsibilities REQUIRED: Active TS/SCI with Full Scope Polygraph In this challenging yet rewarding role as a Penetration Tester, you are an integral part of what brings our Company's mission to life. You should have the following required skills, certifications and demonstrated experience in and …/or with: Cyber security or related IT field Cyber penetration testing Applying computer attack methods and system exploitation techniques Working knowledge of cyber security principles for Linux, Windows, and virtual platforms Designing, testing, or implementing IT security architecture Performing network security analysis Analyzing network architectures Using network management tools Developing risk management methodologies Analyzing test results to develop More ❯

Penetration Tester – REMOTE - UK Salary: £45k - £55k + Discretionary Bonus Location: Remote (UK-based) 🚨 UK Residents Only – Must be SC Eligible Are you an aspiring penetration tester looking to build your skills, stack your certs, and grow your career in a supportive, hands-on environment? This role is built for you. What’s in it for More ❯

Chantilly, VA Full-Time TS/SCI with Poly Onsite Overview Lucayan Technology LLC is seeking a Level 4 Penetration Tester (Subject Matter Expert) to serve as a senior authority on penetration testing and vulnerability exploitation. A Penetration Tester (Pen Tester) is a security professional who reviews and evaluates NRO ISs and recommends changes … posture of NRO ISs. This role provides technical leadership, advanced research, and policy-level security expertise for Intelligence Community systems. What You'll Do Lead highly complex enterprise-level penetration tests. Provide SME guidance to senior government leadership. Develop advanced exploitation and zero-day methodologies. Mentor senior penetration testers. Advise on enterprise-level cybersecurity policies and frameworks. Qualifications … Active TS/SCI with Polygraph clearance. Bachelor's degree + 7 years of penetration testing (or Master's + 6 years). Security+ (required). Preferred: OSCE, OSWE, GXPN, GCFA, GCIH. About Lucayan Lucayan Technology LLC specializes in cyber defense, engineering, and program management in support of the nation's most sensitive missions. As part of our elite More ❯

Chantilly, VA Full-Time TS/SCI with Poly Onsite Overview Lucayan Technology LLC is hiring a Senior Penetration Tester (Level 3) to lead advanced penetration testing engagements for Intelligence Community systems. A Penetration Tester (Pen Tester) is a security professional who reviews and evaluates NRO ISs and recommends changes to the Government that … improve the security posture of NRO ISs. This senior role requires strong technical expertise, leadership, and the ability to provide strategic security guidance. What You'll Do Lead advanced penetration tests and vulnerability assessments. Develop custom tools and advanced exploitation methods. Identify complex vulnerabilities and recommend mitigations. Advise management on policies and security strategy. Mentor penetration testers and More ❯

Senior Penetration Tester Department: Information Technology Location: Onsite - Chicago, IL Role Type: Contract (2-months plus extension) About Our Client Our client is a leading technology and security integrator providing innovative solutions that safeguard critical systems and data for government and commercial enterprises. They operate across multiple regions with a focus on delivering mission-driven results, maintaining a … culture rooted in integrity, innovation, and excellence in service delivery. Job Description We are seeking a Senior Penetration Tester to join our Chicago cybersecurity team. This role will support penetration testing operations across applications, networks, and enterprise environments. The ideal candidate will bring deep technical expertise, proven experience in vulnerability research and exploitation, and the ability to … work as part of a collaborative offensive security team. Duties and Responsibilities - Conduct penetration testing operations in accordance with DHS and industry best practices - Perform web application, network, and infrastructure testing using both commercial and open-source tools - Safely execute testing activities under defined operational guidance - Document findings in detailed reports with actionable remediation recommendations - Collaborate with SOC, engineering More ❯

Junior Penetration Tester Department: Information Technology Location: Onsite - Chicago, IL Role Type: 2-month Contract (Shift Time: 8PM - 4AM ) About Our Client Our client is a leading technology and security integrator providing innovative solutions that safeguard critical systems and data for government and commercial enterprises. They operate across multiple regions with a focus on delivering mission-driven results … maintaining a culture rooted in integrity, innovation, and excellence in service delivery. Job Description We are seeking a Penetration Tester to join our Chicago cybersecurity team. This role will support penetration testing operations across applications, networks, and enterprise environments. The ideal candidate will bring deep technical expertise, proven experience in vulnerability research and exploitation, and the ability … to work as part of a collaborative offensive security team. Duties and Responsibilities - Conduct penetration testing operations in accordance with DHS and industry best practices - Perform web application, network, and infrastructure testing using both commercial and open-source tools - Safely execute testing activities under defined operational guidance - Document findings in detailed reports with actionable remediation recommendations - Collaborate with SOC More ❯

Chantilly, VA Full-Time TS/SCI with Poly Onsite Overview Lucayan Technology LLC is seeking a Level 2 Penetration Tester to join our cybersecurity team supporting mission-critical government programs in Chantilly, VA . A Penetration Tester (Pen Tester) is a security professional who reviews and evaluates NRO ISs and recommends changes to the … that can improve information confidentiality, integrity, and availability. Pen Testers are also responsible for performing security focused services to improve the security posture of NRO ISs. This role conducts penetration testing, vulnerability analysis, and exploitation to strengthen system security. What You'll Do Perform reconnaissance, vulnerability scanning, and penetration testing. Identify common and complex vulnerabilities. Document and report More ❯

As a Penetration Tester - Level II, you will contribute directly to the security posture of both government and commercial clients by identifying vulnerabilities, simulating real-world cyberattacks, and supporting the development of custom software tools that enhance our testing capabilities. You'll work alongside senior assessors and cybersecurity engineers to conduct assessments, emulate advanced threats, and help improve … and continuous learning are strongly encouraged. Duties and Responsibilities: Working under the guidance of senior team members and in support of the Department of Defense (DoD), you will: Conduct Penetration Tests - Perform internal and external penetration testing across networks, applications, and systems to uncover exploitable weaknesses. Exploit Development - Participate in vulnerability research and help develop custom exploits or … sandbox environments. Client Engagement - Participate in customer briefings, help define test objectives , and communicate findings in a professional manner. Develop Custom Tools - Contribute to the creation and testing of penetration testing utilities, automation scripts, and internal tools using Python, Ruby, and C/C++ . Travel - May require occasional travel to client sites. Qualifications: Active Top Secret Clearance Bachelor More ❯

Mid-Level Penetration Tester Department: Information Technology Location: Onsite - Chicago, IL Role Type: 2-month Contract (Shift Time: 8PM - 4AM ) About Our Client Our client is a leading technology and security integrator providing innovative solutions that safeguard critical systems and data for government and commercial enterprises. They operate across multiple regions with a focus on delivering mission-driven … results, maintaining a culture rooted in integrity, innovation, and excellence in service delivery. Job Description We are seeking a Penetration Tester to join our Chicago cybersecurity team. This role will support penetration testing operations across applications, networks, and enterprise environments. The ideal candidate will bring deep technical expertise, proven experience in vulnerability research and exploitation, and the … ability to work as part of a collaborative offensive security team. Duties and Responsibilities - Conduct penetration testing operations in accordance with DHS and industry best practices - Perform web application, network, and infrastructure testing using both commercial and open-source tools - Safely execute testing activities under defined operational guidance - Document findings in detailed reports with actionable remediation recommendations - Collaborate with More ❯

Penetration Tester - Red Team - Remote A renowned cyber security consultancy is growing their technical team with the addition of a Penetration Tester with experience of Red Team engagements. You'll join a talented team of cyber security specialists to work on a range of offensive security projects with clients across various industries, using bleeding-edge tooling … skills and career with professional qualifications. To be successful in this role, you should bring: A minimum of 2 years' experience working on red team engagements Strong background in penetration testing with skills in topics such as EDR evasion, exploit development, cloud exploitation etc. Coding experience in languages such as Python, C/C++, Rust or GO Professional certifications More ❯

Cyber Security Consultant (Penetration Tester) Milton Keynes, Buckinghamshire, United Kingdom We are seeking an experienced Cyber Security Consultant (Penetration Tester) . Make an Impact at RSM UK At RSM, our consulting team brings together diverse advisory experts to deliver our six core solutions: business transformation, forensic, deal services, restructuring, finance function support, and risk and governance. … seeking an enthusiastic Cyber Security Consultant to join our team. Working alongside our experienced team of specialists, you'll deliver offensive security services including digital footprint reconnaissance, social engineering, penetration testing, vulnerability assessments, and more to high-profile clients across all industries. The purpose of this role is to deliver offensive security services such as digital footprint reconnaissance, social … engineering, vulnerability assessments, penetration testing, threat modeling, cyber-attack simulation exercises, and more. You'll benefit from ongoing coaching, career mentoring, and support through our career pathway. You will have opportunities to develop market-leading skills across different capabilities and advance your professional development. You will make an impact by: Supporting technical scoping activities for client assignments. Delivering fieldwork More ❯

Job Title: Test Manager II (Penetration Tester) Location: Chicago, IL (Midway or O'Hare Airport) Duration: 2 Months (Possibility of Extension) Citizenship: U.S. Citizens Only Job Description: We are seeking a Penetration Tester (Test Manager II) to support cybersecurity operations at Chicago's airport facilities. This position focuses on conducting penetration testing and vulnerability assessments … practices. The successful candidate will collaborate with cybersecurity experts to identify risks, test system resilience, and produce detailed, actionable reports to strengthen defenses against cyber threats. Primary Responsibilities: Conduct penetration testing operations in accordance with DHS and industry best practices. Perform web application, network, and infrastructure testing using both commercial and open-source tools. Safely execute testing activities under More ❯

Dark Wolf Solutions is actively seeking an experienced Product and Hardware Security Penetration Tester to join our innovative team. This individual will play a critical role in assessing and enhancing the security of various products, including hardware, software, and embedded systems. This role demands a deep understanding of penetration testing methodologies and advanced exploit development, focusing on … identifying and mitigating vulnerabilities across a wide range of technologies. As a Senior Product and Hardware Security Penetration Tester, you will have the chance to work on cutting-edge technologies and contribute to the enhancement of security across a wide range of products. If you possess a strong background in penetration testing and a passion for cybersecurity … position is set to be supported in a hybrid work environment out of Colorado Springs, CO. Key responsibilities include, but are not limited to: Duties/Responsibilities: Conducting comprehensive penetration testing on hardware, software, and network components. Performing advanced vulnerability scanning and assessments on all components. Performing a Cybersecurity evaluation of the product under test to identify vulnerabilities that More ❯