Penetration Tester Jobs in London

21 of 21 Penetration Tester Jobs in London

Penetration Tester

London, UK
Accenture
Penetration Tester Location: London/Cheltenham/Edinburgh Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history at the point of application. Accenture is a leading global professional services company, providing a broad range … innovation, we apply industry expertise, diverse skill sets and next-generation technology to each business challenge. We believe in inclusion and diversity and supporting Penetration Tester the whole person. Our core values comprise of Stewardship, Best People, Client Value Creation, One Global Network, Respect for the Individual and … are looking for experience in the following skills: CHECK Team Member status - will need to hold Check Team member exam Broad understanding of various penetration specialties from infrastructure to applications and cloud testing Demonstrable ability in deriving security requirements from functional objectives with limited knowledge of the underlying solution More ❯
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Senior Penetration Tester / Ethical Hacker (C++, C#, PowerShell)

London, UK
NEUROTIC
Senior Penetration Tester/Ethical Hacker (C++, C#, PowerShell) 1 day ago Be among the first 25 applicants Key Responsibilities : Conduct advanced penetration testing on web applications, networks, and systems to identify vulnerabilities. Simulate sophisticated cyberattacks using tools and custom scripts to exploit weaknesses. Develop and deploy … resilience. Collaborate with development and IT teams to remediate vulnerabilities and improve security. Stay up-to-date with the latest attack vectors, vulnerabilities, and penetration testing methodologies. Write detailed reports documenting findings, risks, and remediation recommendations. Mentor junior team members and share knowledge on advanced hacking techniques. Participate in … and incident response activities. Required Skills and Qualifications : Technical Expertise : Expert in C++ , C# , PowerShell , and other scripting/programming languages. Strong knowledge of penetration testing tools (e.g., Metasploit, Burp Suite, Nmap, Wireshark). Experience with reverse engineering, exploit development, and vulnerability research. Familiarity with operating systems (Windows, Linux More ❯
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Lead Penetration Tester

London, UK
Barclay Simpson
This established financial services firm seeks an experienced and certified Penetration Tester to build and lead a new internal penetration testing service. The firm has been using 3rd parties for penetration testing until now, but the decision has now been made to bring this in-house. … This is a rare opportunity to build, own and lead the service. The ideal candidate will be an experienced penetration tester with one of the following certifications: OSCP, CRT or GPEN. You should have hands-on webapp and infrastructure pentesting experience gained in either an in-house team More ❯
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Penetration Tester (WebApp) - UK (Remote)

East London, London, United Kingdom
Hybrid / WFH Options
Cyber Search Partners
Overview As a Penetration Tester, you will perform formal and comprehensive penetration testing assessments, including producing full written reports to appropriate standards and within agreed deadlines. In addition, you will support with client pre-engagement activities, including scoping and proposal drafting, as well as researching new vulnerabilities … and technologies, following responsible disclosure, and sharing such findings within the team. Responsibilities Perform formal and comprehensive application and other penetration testing assessments where appropriate and required; Provide well-written, concise, technical and non-technical reports in English; Perform vulnerability/attack surface assessments and provide findings with remediation … actions; Support with various client pre-engagement interactions, including scoping activities and proposal drafting; Manage and deliver penetration testing project activities within strict deadlines; Research new technologies, security topics and vulnerabilities within the wider team to identify new vulnerabilities and follow responsible disclosure; Coach and mentor Graduate and Junior More ❯
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Penetration Tester (WebApp) - UK (Remote)

City of London, London, United Kingdom
Hybrid / WFH Options
Cyber Search Partners
Overview As a Penetration Tester, you will perform formal and comprehensive penetration testing assessments, including producing full written reports to appropriate standards and within agreed deadlines. In addition, you will support with client pre-engagement activities, including scoping and proposal drafting, as well as researching new vulnerabilities … and technologies, following responsible disclosure, and sharing such findings within the team. Responsibilities Perform formal and comprehensive application and other penetration testing assessments where appropriate and required; Provide well-written, concise, technical and non-technical reports in English; Perform vulnerability/attack surface assessments and provide findings with remediation … actions; Support with various client pre-engagement interactions, including scoping activities and proposal drafting; Manage and deliver penetration testing project activities within strict deadlines; Research new technologies, security topics and vulnerabilities within the wider team to identify new vulnerabilities and follow responsible disclosure; Coach and mentor Graduate and Junior More ❯
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Penetration Tester (WebApp) - UK (Remote)

Central London / West End, London, United Kingdom
Hybrid / WFH Options
Cyber Search Partners
Overview As a Penetration Tester, you will perform formal and comprehensive penetration testing assessments, including producing full written reports to appropriate standards and within agreed deadlines. In addition, you will support with client pre-engagement activities, including scoping and proposal drafting, as well as researching new vulnerabilities … and technologies, following responsible disclosure, and sharing such findings within the team. Responsibilities Perform formal and comprehensive application and other penetration testing assessments where appropriate and required; Provide well-written, concise, technical and non-technical reports in English; Perform vulnerability/attack surface assessments and provide findings with remediation … actions; Support with various client pre-engagement interactions, including scoping activities and proposal drafting; Manage and deliver penetration testing project activities within strict deadlines; Research new technologies, security topics and vulnerabilities within the wider team to identify new vulnerabilities and follow responsible disclosure; Coach and mentor Graduate and Junior More ❯
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Penetration Tester (WebApp) - UK (Remote)

london, south east england, united kingdom
Hybrid / WFH Options
Cyber Search Partners
Overview As a Penetration Tester, you will perform formal and comprehensive penetration testing assessments, including producing full written reports to appropriate standards and within agreed deadlines. In addition, you will support with client pre-engagement activities, including scoping and proposal drafting, as well as researching new vulnerabilities … and technologies, following responsible disclosure, and sharing such findings within the team. Responsibilities Perform formal and comprehensive application and other penetration testing assessments where appropriate and required; Provide well-written, concise, technical and non-technical reports in English; Perform vulnerability/attack surface assessments and provide findings with remediation … actions; Support with various client pre-engagement interactions, including scoping activities and proposal drafting; Manage and deliver penetration testing project activities within strict deadlines; Research new technologies, security topics and vulnerabilities within the wider team to identify new vulnerabilities and follow responsible disclosure; Coach and mentor Graduate and Junior More ❯
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Penetration Tester (WebApp) - UK (Remote)

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Cyber Search Partners
Overview As a Penetration Tester, you will perform formal and comprehensive penetration testing assessments, including producing full written reports to appropriate standards and within agreed deadlines. In addition, you will support with client pre-engagement activities, including scoping and proposal drafting, as well as researching new vulnerabilities … and technologies, following responsible disclosure, and sharing such findings within the team. Responsibilities Perform formal and comprehensive application and other penetration testing assessments where appropriate and required; Provide well-written, concise, technical and non-technical reports in English; Perform vulnerability/attack surface assessments and provide findings with remediation … actions; Support with various client pre-engagement interactions, including scoping activities and proposal drafting; Manage and deliver penetration testing project activities within strict deadlines; Research new technologies, security topics and vulnerabilities within the wider team to identify new vulnerabilities and follow responsible disclosure; Coach and mentor Graduate and Junior More ❯
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Penetration Tester (WebApp) - UK (Remote)

london (west end), south east england, united kingdom
Hybrid / WFH Options
Cyber Search Partners
Overview As a Penetration Tester, you will perform formal and comprehensive penetration testing assessments, including producing full written reports to appropriate standards and within agreed deadlines. In addition, you will support with client pre-engagement activities, including scoping and proposal drafting, as well as researching new vulnerabilities … and technologies, following responsible disclosure, and sharing such findings within the team. Responsibilities Perform formal and comprehensive application and other penetration testing assessments where appropriate and required; Provide well-written, concise, technical and non-technical reports in English; Perform vulnerability/attack surface assessments and provide findings with remediation … actions; Support with various client pre-engagement interactions, including scoping activities and proposal drafting; Manage and deliver penetration testing project activities within strict deadlines; Research new technologies, security topics and vulnerabilities within the wider team to identify new vulnerabilities and follow responsible disclosure; Coach and mentor Graduate and Junior More ❯
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Penetration Tester

London, UK
Hybrid / WFH Options
Eames Consulting
Location: Fully Remote Contract: Initial 2-month contract, with potential for extension Job Overview: We are looking for a highly skilled and experienced IT Penetration Tester to join our team on an initial 2-month contract basis. As a Pen Tester, you will be responsible for performing … s security posture. The role is fully remote and offers a competitive rate of £450 per day outside of IR35. Key Responsibilities: Conduct comprehensive penetration testing on a wide variety of systems, applications, and networks (both internal and external IP addresses). Perform manual and automated testing, identifying security … flaws, vulnerabilities, and weaknesses. Provide in-depth analysis of findings and offer recommendations to mitigate risks. Write clear, concise, and professional penetration testing reports that are understandable to both technical and non-technical stakeholders. Work with internal teams and clients to communicate vulnerabilities, testing results, and remediation plans. Ensure More ❯
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Penetration Tester

London, UK
Hybrid / WFH Options
Starling Bank
a commutable distance of one of our offices so that we're able to interact and collaborate in person. About the Role As a Penetration Tester you will be working with talented cyber security professionals to protect Starling customers, company assets and systems using the latest technologies and … and guide Starling's engineering and operation functions to ensure our services are designed, developed and operated securely. As an experienced member of our penetration testing team you will directly interact with multiple areas of the business to understand requirements, define the scope and approach to testing (including undertaking … our risk framework. In addition, we understand the importance of knowledge and expertise remaining current and you shall support the continued advancement of our penetration testing through research, design and implementation of new solutions, including automation. Responsibilities Scoping and performing mobile, web application, cloud, and infrastructure penetration tests. More ❯
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AI Red Teamer/Penetration Tester

London, UK
TN United Kingdom
Social network you want to login/join with: AI Red Teamer/Penetration Tester, London Client: Mindgard Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: 532fd69814c1 Job Views: 33 Posted: 18.04.2025 Expiry Date: 02.06.2025 Job Description: Mindgard is a London-based … customers care about, demonstrate successful cyber attacks, and report your findings to internal and external stakeholders. In this role you will: Red team and penetration test AI models, systems, and applications. Work with customers, AI providers, and the open-source community to disclose new security issues and help secure … of internal tools, our AI red teaming product, and open-source projects. Skills & Experience We are looking for: Strong experience in red teaming and penetration testing. Hands-on experience and understanding of attack techniques specific to AI applications (prompt injection, jailbreaking, model extraction, etc.). Familiarity with AI red More ❯
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Penetration Tester

Greater London, England, United Kingdom
Platform Recruitment
My Client is a cybersecurity company who offer security services to multiple businesses across varying industries. They are now looking for a graduate Penetration Tester to join their growing team! Main Duties: Vulnerability Identification: Conduct thorough assessments to identify security vulnerabilities in networks, applications, and systems. Exploitation and More ❯
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Penetration Tester

london, south east england, united kingdom
Platform Recruitment
My Client is a cybersecurity company who offer security services to multiple businesses across varying industries. They are now looking for a graduate Penetration Tester to join their growing team! Main Duties: Vulnerability Identification: Conduct thorough assessments to identify security vulnerabilities in networks, applications, and systems. Exploitation and More ❯
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Penetration Tester

London, UK
Platform Recruitment
My Client is a cybersecurity company who offer security services to multiple businesses across varying industries. They are now looking for a graduate Penetration Tester to join their growing team! Main Duties: Vulnerability Identification: Conduct thorough assessments to identify security vulnerabilities in networks, applications, and systems. Exploitation and More ❯
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Senior Penetration Tester - Mobile & Cloud

London, UK
JP Morgan
As an Assessments & Exercises Vice President in Penetration Test, you will contribute significantly to enhancing the firm's cybersecurity or resiliency posture by using industry-standard assessment methodologies and techniques to proactively identify risks and vulnerabilities in people, processes, and technology. As part of the team, your primary responsibility … will be performing hands on penetration testing of some of JPMC's most critical applications, platforms, and the perimeter. You will work with application developers to not only understand root cause and mitigate vulnerabilities, but also to identify where vulnerabilities can be identified earlier in the SDLC. Successful candidates … are expected to demonstrate an eagerness to learn, the drive to excel, excellent technical knowledge of security concepts and proven expertise in penetration testing. Job responsibilities: Design and execute testing and simulations - such as penetration tests and contribute to the development and refinement of assessment methodologies, tools, and More ❯
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Senior Penetration Tester

London, UK
JPMorgan Chase & Co
Job Description Contribute to leading-edge security and resilience efforts, advancing protective strategies and propelling continuous improvement. As an Assessments & Exercises Vice President in Penetration Test, you will contribute significantly to enhancing the firm's cybersecurity or resiliency posture by using industry-standard assessment methodologies and techniques to proactively … identify risks and vulnerabilities in people, processes, and technology. Your primary responsibility will be performing hands-on penetration testing of some of JPMC's most critical applications, platforms, and the perimeter. You will work with application developers to understand root causes and mitigate vulnerabilities, as well as identify where … Successful candidates are expected to demonstrate an eagerness to learn, the drive to excel, excellent technical knowledge of security concepts, and proven expertise in penetration testing. Job Responsibilities Design and execute testing and simulations - such as penetration tests, technical controls assessments, cyber exercises, or resiliency simulations, and contribute More ❯
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Penetration Tester

London, UK
Hybrid / WFH Options
PA Consulting
and diary to suit your work/life balance. We are looking for consultants and senior consultants to join our growing team of specialist penetration testers. PA offers CREST accredited penetration testing services to clients across a range of industries including (among others) finance, central government, energy and … of our work is bespoke and requires attention to detail. Our testers are able to work on assignments beyond a sole focus of just penetration testing, allowing them to grow their wider skillset as they desire. This has previously included cloud architecture and teaching at universities and on our … assessments within agreed deadlines Produce written and verbal reports for clients to an excellent standard. Develop and share knowledge with the rest of the penetration testing team Work with teams across PA Consulting, providing technical knowledge and expertise where required Be self-motivated and client-oriented, aiming to exceed More ❯
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Penetration Tester

London, UK
Visa Inc
ll provide the right environment and a plethora of top-notch professionals to learn with and from. Essential Functions: The objective of Visa’s Penetration Testing program is to proactively identify weaknesses and shortcomings in Visa’s security posture and recommend necessary controls and procedures to protect against adversarial … hacks of internally and externally hosted applications according to scope defined by the pen test team. Subject matter expertise in web, mobile, or network penetration testing with a track record of end-to-end testing of complex systems. Coordinate and execute system/network level pen tests and ethical …/Methodology/Strategy advancement. Provide technical support to senior management in identifying and streamlining new/existing protocols and tools used by the penetration testing team. Develop and automate scripts, tools, and resources needed to advance ethical hacking capabilities around new and emerging technologies like mobile, cloud, and More ❯
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Penetration Tester

London, UK
Visa
ll provide the right environment and a plethora of top notch professionals to learn with and from. Essential Functions: The objective of Visa's Penetration Testing program is to pro-actively identify weaknesses and shortcomings in Visa's security posture and recommend necessary controls and procedures to protect Visa … hacks of internally and externally hosted applications according to scope defined by the pen test team. Subject matter expertise in web, mobile or network penetration testing with track record of end to end testing of complex systems. Co-ordinate and execute system/network level pen tests and ethical …/Methodology/Strategy advancement. Provide technical support to senior management in identifying and streamlining new/existing protocols and tools used by the penetration testing team. Develop and automate scripts, tools and resources needed to advance ethical hacking capabilities around new and emerging technologies like mobile, cloud and More ❯
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Penetration Tester

London, UK
NCC Group
out! The Opportunity: Our Technical Security Consultant team in the UK is growing - we are looking to speak with innovative technical Security Consultants/Penetration Testers. Key Accountabilities: Delivering technical tasks on our engagements Delivering high quality technical solutions to clients Assist in the identification, resolution and documentation of More ❯
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Penetration Tester
London
10th Percentile
£57,500
25th Percentile
£58,750
Median
£75,500
75th Percentile
£90,000