Senior Cybersecurity Penetration Tester for Impact & Flexibility

Company IconTieTalent
Location IconLondon

A cybersecurity firm is seeking a Senior Penetration Tester to identify vulnerabilities in systems and networks. You will support the delivery of vulnerability assessment and penetration testing services and collaborate with a dynamic Cybersecurity t...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester - Hybrid FinTech Security Expert

Company IconStarling Bank
Location IconLondon

A leading digital bank is seeking an experienced Penetration Tester to join their cybersecurity team. You will be responsible for conducting penetration tests and collaborating with engineering teams to enhance security measures. Ideal candidates wil...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester: Mobile, Web & Cloud Security

Company IconStarling
Location IconLondon

A leading digital bank in the UK is seeking an experienced Penetration Tester to join their cybersecurity team. You will work collaboratively to ensure services are securely designed and maintained. This role involves performing penetration tests and...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester — Hybrid, High-Impact Security

Company IconFSP
Location IconLondon

FSP is seeking a skilled Senior Penetration Tester to join their Cyber Security practice in Greater London. The ideal candidate will have at least 2 years of experience in penetration testing or vulnerability research, and be proficient in programmin...Read More>>.

Posted: June 6th, 2026
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Penetration Tester — Hybrid, UK Cyber Security Consultancy

Company Icon4Square Recruitment Ltd
Location IconManchester

A growing UK cyber security consultancy is seeking a skilled Penetration Tester to conduct security assessments across various technologies. Join a supportive team with opportunities for professional development and flexibility in a hybrid working en...Read More>>.

Posted: June 6th, 2026
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Senior Security Consultant (Hardware/Embedded Penetration Tester)

Company IconNetSPI
Location Icon

OverviewNetSPI is an award-winning pioneer of Penetration Testing as a Service (PTaaS) with its AI-powered platform supported by more than 350 in-house cybersecurity experts. Specializing in 50+ pentest types, attack surface visibility...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester: Cloud Mobile & Web Security

Company IconManchester Digital
Location IconManchester

A leading digital bank in Manchester is seeking an experienced Penetration Tester to join their team. You will conduct mobile, web application, cloud, and infrastructure penetration tests while collaborating with engineering teams to enhance security...Read More>>.

Posted: June 6th, 2026
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Penetration Tester (Contract) - Hybrid East Midlands

Company Icondevelop
Location IconEast Midlands

develop is seeking a Security Penetration Tester for a contract role in the East Midlands. This hybrid position involves working three days a week, with an immediate start, to enhance the company's internal penetration testing capabilities....Read More>>.

Posted: June 6th, 2026
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Remote Penetration Tester — Hybrid, Grow Skills & Certs

Company IconDionach by Nomios
Location IconOxford

A leading information security company in the UK is seeking an experienced penetration tester. The role offers hybrid flexibility, allowing you to work from home or the office in Oxford or Glasgow. Candidates should have at least two years of experie...Read More>>.

Posted: June 6th, 2026
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Penetration Tester: Ethical Hacking & Security Assessments

Company Iconbluedog cyber security
Location IconLondon

A cybersecurity firm in Greater London seeks a Penetration Tester to plan and conduct ethical hacking exercises and identify vulnerabilities in systems. The ideal candidate will have 1-2 years of experience and a bachelor's degree in a related field....Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester – Telecoms & Hardware Security

Company IconNational Physical Laboratory (NPL)
Location Icon

The National Physical Laboratory (NPL) is seeking a skilled Security Tester to join their team in Solihull. The role involves conducting security assessments, performing penetration testing, and investigating security findings. Ideal applicants wi...Read More>>.

Posted: June 6th, 2026
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Principal Penetration Tester (9 Month FTC)

Company IconAllwyn UK
Location IconWatford

At the heart of everything we do is our vision to change lives every day, and our mission to grow The National Lottery responsibly and champion its impact. We are Allwyn UK, part of the Allwyn Entertainment Group – a multi-natio...Read More>>.

Posted: June 6th, 2026
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Penetration Tester (CTM) — Drive Secure Transformations

Company IconCapgemini
Location IconBirmingham

Capgemini seeks a skilled penetration tester to join their Technical Assurance Services (CTAS) team. This role involves conducting comprehensive security tests to identify vulnerabilities across IT infrastructures and applications. The ideal candi...Read More>>.

Posted: June 6th, 2026
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Penetration Tester – Apps, APIs & Cloud Security

Company Icon慨正橡扯
Location IconLondon

About the role Capital One Offensive Security reduces cyber risk by uncovering vulnerabilities and weaknesses in the enterprise cyber environment through coordinated ethical hacking and penetration testing scenarios. This position work...Read More>>.

Posted: June 6th, 2026
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Penetration Tester — Hybrid in Bristol, Impactful Security

Company IconTrades Workforce Solutions
Location IconBristol

A UK cybersecurity consultancy in Bristol is seeking an experienced Penetration Tester to join their expert team. This hybrid role involves conducting advanced penetration tests, leading vulnerability assessments, and creating detailed reports to hel...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester — Web, Mobile & API Security

Company IconSynergy Solutions International Limited
Location IconLondon

A consultancy firm in London is looking for a Senior Penetration Tester to join their team. The role involves performing high-standard penetration tests, managing and mentoring security consultants, and producing timely reports. Ideal candidates will...Read More>>.

Posted: June 6th, 2026
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Penetration Tester - Hybrid, UK Travel, Impactful Security

Company IconCAPGEMINI
Location IconManchester

About the job you’re considering Capgemini’s Global Cybersecurity Practice is home to over 4,000 professionals delivering secure, innovative solutions across IT and OT environments - from networks to cloud services and everything i...Read More>>.

Posted: June 6th, 2026
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Remote Penetration Tester & Security Advisory Lead

Company IconHamilton Barnes Associates Limited
Location IconSouth Yorkshire

A cybersecurity services provider is seeking a Penetration Tester to conduct security assessments across various clients. The role offers flexibility to work remotely or from the Sheffield office, and the ideal candidate will have 2-4 years of experi...Read More>>.

Posted: June 6th, 2026
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Senior Application Penetration Tester – Cloud & Offense

Company IconAllwyn UK
Location IconWatford

Allwyn UK in Watford is seeking an experienced security professional to enhance their Security Testing function. The role focuses on application security testing and includes tasks such as leading penetration tests and developing a purple team met...Read More>>.

Posted: June 6th, 2026
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Penetration Tester (CREST/CHECK) – Shape Secure Futures

Company IconGoaco
Location Icon

A technology solutions provider in the United Kingdom seeks a skilled Penetration Tester to enhance cybersecurity for clients. You will conduct penetration tests, assess security vulnerabilities, and collaborate closely with the Global Cyber Security...Read More>>.

Posted: June 6th, 2026
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Associate Penetration Tester — Web/API Security & Reporting

Company IconRadley James
Location IconManchester

A leading cybersecurity firm in Manchester is seeking an Associate Penetration Tester to identify and remediate security vulnerabilities across applications and infrastructure. You will conduct penetration tests, document findings, and support cross-...Read More>>.

Posted: June 6th, 2026
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Penetration Tester (Contract) – Shape In‑House Security (Azure)

Company Icondevelop
Location IconLeicester

develop is seeking a Security Penetration Tester for a 6-month contract in Leicester. This role involves planning and executing penetration tests across networks and applications, while identifying vulnerabilities and providing remediation guidanc...Read More>>.

Posted: June 6th, 2026
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Remote SC/NATO Cleared Penetration Tester Lead

Company IconiO Associates
Location Icon

A leading consultancy firm is seeking a Lead Principal Consultant – Penetration Tester for a 12-month contract outside IR35, starting in January. This remote role is targeted at candidates based in the UK or NATO countries. The ideal candidate will...Read More>>.

Posted: June 6th, 2026
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Penetration Tester: Offensive Security & Client Impact

Company IconA-LIGN
Location IconLondon

A-LIGN in Greater London is looking for a skilled Penetration Tester to execute high-quality security assessments for diverse clients. You will perform various penetration tests and guarantee the ongoing protection of clients' critical systems and da...Read More>>.

Posted: June 6th, 2026
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Lead Penetration Tester in Technical Vulnerability Management

Company IconBank of England
Location IconLeeds

Lead Penetration Tester (Lead Cyber Analyst), Technical Vulnerability Management - Cyber Security Division Permanent Full time We currently have a number of Penetration Tester opportunities across our C...Read More>>.

Posted: June 6th, 2026
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AI Security Penetration Tester for Threat Evaluation

Company IconObsidian
Location IconLondon

Obsidian is seeking experienced cybersecurity professionals to engage on a project basis, focusing on enhancing AI systems in threat detection and vulnerability assessment. Roles include security analysts, penetration testers, and threat intellige...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester — Lead Security Assessments

Company IconNational Physical Laboratory (NPL)
Location Icon

The National Physical Laboratory (NPL) seeks a Senior Security Testing Specialist to lead security assessments across complex systems. You will be responsible for conducting hands-on penetration testing and mentoring junior team members, all withi...Read More>>.

Posted: June 11th, 2026
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Senior Penetration Tester — Infra & Web Assessments

Company IconBridewell Consulting Limited
Location Icon

Bridewell Consulting Limited is seeking an experienced Senior Penetration Tester in the UK to deliver high-quality penetration testing across various client projects. The role requires strong skills in communication and a client-facing attitude. Y...Read More>>.

Posted: June 13th, 2026
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Senior Penetration Tester — FinTech & Low-Latency Trading

Company IconLa Fosse
Location IconLondon

La Fosse, a leading quantitative investment management firm in Greater London, seeks a Penetration Tester for its Security Assurance team. This senior role involves owning internal penetration testing, identifying security risks across infrastruct...Read More>>.

Posted: June 13th, 2026
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Senior Security Penetration Tester - TVM & Threat Hunting

Company IconThames Water
Location Icon

Thames Water is seeking a Security Penetration Tester based in the United Kingdom. You will develop the penetration testing function and conduct extensive security assessments across systems. The ideal candidate will have a strong understanding of TV...Read More>>.

Posted: June 13th, 2026
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Senior Penetration Tester - AI Security, Remote Europe

Company IconMistral
Location IconLondon

Mistral is seeking a hands-on Penetration Tester in Greater London to join our Offensive Security team. You will run our evolving offensive solution during client engagements while hunting for vulnerabilities in Mistral's own systems as well. Your...Read More>>.

Posted: June 14th, 2026
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Senior Penetration Tester: Lead Security Assessments & Mentorship

Company IconNational Physical Laboratory
Location IconBirmingham

National Physical Laboratory in Birmingham is seeking a skilled security specialist to lead penetration testing and security assessments across complex systems. You will mentor junior team members while contributing to remediation strategies and i...Read More>>.

Posted: June 15th, 2026
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Cyber Penetration Tester — Web, API & Cloud (Hybrid)

Company IconeasyJet
Location IconLuton

easyJet is seeking a Digital Safety Penetration Tester to perform ethical hacking across applications and infrastructures. You will plan and execute penetration tests, identify vulnerabilities, and produce detailed reports to enhance security....Read More>>.

Posted: June 15th, 2026
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Senior Lead Penetration Tester – Hybrid Role (UK)

Company IconNomios
Location Icon

Nomios is searching for a Lead Cyber Security Consultant to manage complex cyber security engagements within the UK. Candidates should have significant experience in penetration testing and the ability to lead teams effectively.The position...Read More>>.

Posted: June 16th, 2026
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Remote Penetration Tester - Web, API & Network Security

Company Iconjobr.pro
Location Icon

Bugcrowd is seeking a Penetration Tester in the UK to join their team remotely. You'll conduct structured testing to find security vulnerabilities in various environments, stay up-to-date on security concepts, and support senior team members....Read More>>.

Posted: June 25th, 2026
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CTC-Cleared Security Penetration Tester for TVM

Company IconGCS Recruitment
Location Icon

GCS Recruitment is seeking a skilled Security Penetration Tester in the United Kingdom. Your key responsibilities include conducting vulnerability assessments, developing penetration testing documentation, and liaising with stakeholders to ensure...Read More>>.

Posted: June 25th, 2026
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Penetration Tester — Hybrid (Training & Career Growth)

Company IconRed Moon recruitment
Location IconCheltenham

Red Moon recruitment seeks a Penetration Tester for its Cheltenham office, offering hybrid working. In this role, you will conduct security assessments, identify vulnerabilities, and provide recommendations to enhance client security.You wi...Read More>>.

Posted: June 19th, 2026
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Remote Associate Penetration Tester (UK hours)

Company IconBugcrowd Inc.
Location Icon

Bugcrowd Inc. is looking for a motivated Associate Penetration Tester to join their security team. This role focuses on developing offensive security skills while conducting penetration tests and engaging actively in maintaining security knowledge...Read More>>.

Posted: June 20th, 2026
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Penetration Tester – Red Team & OT Focus

Company IconBig Red Recruitment Midlands Limited
Location IconLondon

Big Red Recruitment Midlands Limited is looking for a Penetration Tester to join their Offensive Security team in London. This exciting role involves conducting vulnerability assessments and penetration testing engagements while contributing to th...Read More>>.

Posted: June 21st, 2026
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Hybrid Penetration Tester — Infra & Web Security

Company IconSivara GmbH
Location IconWarmley

Sivara GmbH, based in Warmley, UK, is seeking a skilled penetration tester to join their cyber security consultancy. This role offers the opportunity to conduct comprehensive security assessments across various sectors, working closely with client...Read More>>.

Posted: June 21st, 2026
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Lead Penetration Tester & Team Lead – Remote UK

Company IconCitation Canada
Location IconWilmslow

Citation Canada is seeking a Lead Security Consultant to provide technical leadership across penetration testing engagements. This role involves managing a team while ensuring quality testing services are delivered in alignment with NCSC CHECK sta...Read More>>.

Posted: June 22nd, 2026
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Hybrid Penetration Tester - App, API & Cloud Security

Company IconCapital One
Location IconNottingham

Capital One is seeking a Penetration Tester to join their Offensive Security team. The successful candidate will be responsible for performing penetration testing of various systems and helping improve security protocols across the organization. T...Read More>>.

Posted: June 23rd, 2026
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Penetration Tester — Red Team & OT Security

Company IconBig Red Recruitment
Location IconLondon

Big Red Recruitment is on the lookout for a skilled Penetration Tester to strengthen their Offensive Security team within a growing cyber security consultancy. The role involves conducting thorough vulnerability assessments and penetration testing...Read More>>.

Posted: June 23rd, 2026
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Remote Lead Penetration Tester & Security Lead

Company IconCitation Cyber
Location Icon

Citation Cyber is looking for a Lead Security Consultant to provide technical leadership in penetration testing. This remote role with occasional travel requires expertise in web, network, and cloud security. You will mentor a team, ensuring compl...Read More>>.

Posted: June 23rd, 2026
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Hybrid Penetration Tester: API, Web & Cloud Security

Company IconCapital One (Europe) plc
Location IconNottingham

Capital One (Europe) plc is looking for an Offensive Security professional in Greater London to reduce cyber risks through ethical hacking and penetration testing. You will perform assessments of various systems and make recommendations to improve...Read More>>.

Posted: June 24th, 2026
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Penetration Tester - Apps, Web & Cloud (Hybrid UK)

Company IconCapital One Financial Corporation
Location IconLondon

Capital One Financial Corporation is hiring a Penetration Tester in London or Nottingham to uncover vulnerabilities in the enterprise cyber environment. This role involves performing penetration tests, assessing corporate security standards, and w...Read More>>.

Posted: June 24th, 2026
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Hybrid Penetration Tester & Cyber Security Consultant

Company IconRSM UK Group LLP.
Location IconCity of Westminster

RSM UK Group LLP. is seeking an experienced Cyber Security Consultant to deliver offensive security services such as penetration testing, vulnerability assessments, and more, to high-profile clients across industries.This permanent position...Read More>>.

Posted: June 27th, 2026
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Remote Associate Penetration Tester – Mentored Growth

Company IconBugcrowd
Location IconLondon

Bugcrowd is seeking an Associate Penetration Tester to develop core offensive security skills. In this remote role, you will conduct security testing across various assets, learning under the guidance of senior team members.Ideal candidates...Read More>>.

Posted: June 28th, 2026
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Remote Penetration Tester (CHECK) – Impact & Growth

Company IconForfend Information Security
Location IconBirmingham

Forfend Information Security is looking for a CHECK Team Member Security Consultant to deliver high-quality penetration testing and assessments. This role will involve conducting technical evaluations, producing actionable reports, and maintaining...Read More>>.

Posted: June 28th, 2026
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Lead Penetration Tester, CHECK Expert & Mentor

Company IconUBDS Group
Location IconManchester

UBDS Group seeks a skilled Senior Penetration Tester to lead CHECK engagements and commercial projects in Manchester. You will work with senior management to maintain CHECK Green status, mentor junior team members, and provide high-quality reports...Read More>>.

Posted: June 29th, 2026
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