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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Lead Penetration Tester - CHECK Team Leader

Company IconProCheckUp (PCU)
Location Icon

A cybersecurity firm in the United Kingdom is seeking a Senior Penetration Tester to lead engagements and mentor team members. The ideal candidate will have CREST CCT certification and experience with both public and private sector clients. Responsib...Read More>>.

Posted: June 6th, 2026
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Graduate Cyber Security Consultant/Penetration Tester

Company IconTrades Workforce Solutions
Location IconBristol

Penetration Tester – Bristol | Full-Time | Hybrid with Client Travel My client is a UK-based technology and cybersecurity consultancy delivering cutting‑edge solutions across sectors including telecoms, finance, defence, rail, and...Read More>>.

Posted: June 6th, 2026
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Senior Hardware & Embedded Penetration Tester

Company IconNetSPI
Location Icon

A cybersecurity firm is seeking an experienced Senior Hardware/Embedded Penetration Tester to assess the security of hardware and embedded systems. This role requires strong skills in hardware penetration testing, reverse engineering, and collaborati...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester - Offensive Security Lead

Company IconHack The Box
Location IconLondon

Hack The Box is looking for a Senior Penetration Tester to join their offensive security team in Greater London. This role involves conducting penetration tests on applications, infrastructure, and cloud environments. Key responsibilities include doc...Read More>>.

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

Company IconFSP Consulting Services Limited
Location Icon

A leading cybersecurity consultancy in the UK is seeking a skilled Senior Penetration Tester to join their Cyber Security practice. The role involves leading penetration testing engagements, providing technical advice on security technologies, and co...Read More>>.

Posted: June 6th, 2026
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Penetration Tester - Grow in a Collaborative Security Team

Company IconUltima
Location IconReading

A leading technology provider in Reading is seeking a Penetration Tester to enhance its Security Testing Practice. The role involves delivering high-quality penetration testing engagements, supporting IT Health Checks, and collaborating with senior c...Read More>>.

Posted: June 6th, 2026
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Graduate Penetration Tester — Cybersecurity Analyst

Company IconPlatform Recruitment
Location IconLondon

An innovative cybersecurity firm is seeking a passionate graduate Penetration Tester to join their dynamic team. In this entry-level role, you will conduct vulnerability assessments and simulate cyberattacks to identify weaknesses in various systems....Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester (CHECK) — Flexible & Impactful

Company IconInstil
Location IconBelfast

A cybersecurity firm in Belfast is seeking a Senior Penetration Tester to deliver high-quality penetration testing across diverse client systems. The role requires at least 2 years of experience, proficiency in various testing methodologies, and curr...Read More>>.

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

Company IconCognizant
Location Icon

A leading IT services company is seeking a Security / Penetration Testing Engineer in London. The role includes gathering security requirements, conducting API and UI/Web application penetration testing, and ensuring compliance with industry standard...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester - CTM

Company IconInstil
Location IconBelfast

We are looking for a Senior Penetration Tester with CHECK to join our growing team. You will play a critical role in delivering high‑quality penetration testing engagements across infrastructure, cloud, web, and mobile applications for...Read More>>.

Posted: June 6th, 2026
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Penetration Tester (Web App)

Company IconBulletproof incorporated
Location Icon

OVERVIEWAs 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 cl...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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IT/OT Security Penetration Tester — Hybrid (London)

Company IconConsultancy.uk
Location IconLondon

A premier consulting firm in London is seeking a skilled penetration tester. You will be responsible for high-quality security assessments, working both independently and within teams. The ideal candidate will possess certifications like OSCP or CRES...Read More>>.

Posted: June 6th, 2026
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Lead Penetration Tester - Cloud & App Security

Company IconManchester Digital
Location IconManchester

A leading financial technology company in Manchester is seeking an experienced Penetration Tester to conduct assessments on its core banking platform. The role focuses on Cloud and Application Security, requiring strong skills in penetration testing...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: Offensive Security Engineer

Company IconTesco
Location IconWelwyn Garden City

A leading retail company in the UK is seeking a Cyber Security Specialist to enhance its penetration testing capabilities. In this role, you will perform security assessments on applications and infrastructure, utilizing internal knowledge to address...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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IT/OT Security Penetration Tester (Hybrid)

Company IconAstro Studios, Inc.
Location IconLondon

A leading cybersecurity firm in Greater London is seeking a skilled individual for a penetration testing role. The successful candidate will deliver high-quality security assessments, produce client reports, and collaborate across teams. This positio...Read More>>.

Posted: June 6th, 2026
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Penetration tester - CHECK TEAM MEMBER

Company IconInfoSec People Ltd
Location Icon

OverviewOur client, a leading UK-based MSSP, is looking for a Senior Penetration Testing Consultant to join their Red Team. This is a remote-first role with occasional on-site work, ideal for an experienced tester who wants to take on...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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SC or NATO Cleared Penetration Tester

Company IconiO Associates
Location Icon

Lead Principal Consultant – Penetration Tester iO Associates is seeking SC or NATO Cleared Penetration Testers for a 12 month contract (outside IR35) starting in January, with a likely extension. This is a 100% remote r...Read More>>.

Posted: June 6th, 2026
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Junior Associate Penetration Tester

Company IconRadley James
Location IconManchester

This range is provided by Radley James. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range We’re looking for an Associate Penetration Tester to help id...Read More>>.

Posted: June 6th, 2026
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Senior Penetration Tester, Vulnerability Management

Company IconBank of England
Location IconLeeds

Bank of England is looking for a Lead Penetration Tester to strengthen the security of its systems and services. You will lead penetration testing, assess vulnerabilities, and work across teams to drive effective remediation. The role allows for h...Read More>>.

Posted: June 6th, 2026
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Penetration Tester - Engine by Starling

Company IconManchester Digital
Location IconManchester

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, th...Read More>>.

Posted: June 6th, 2026
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Penetration Tester (OSCP Certified)

Company IconSolutions & Innovations Company
Location IconLondon

Your talent is the key to innovation. At S&l, we're not just offering jobs - we're building careers that make an impact. Apply now and be part of a team shaping the future of cybersecurity and technology.Salary: Up to £45,000 per annum....Read More>>.

Posted: June 6th, 2026
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Penetration Tester - Remote, Flexible & Impactful

Company IconDarkshield
Location Icon

Darkshield is seeking an experienced Penetration Tester in York, UK, to conduct security assessments and ethical hacking. The successful candidate will identify vulnerabilities, simulate cyberattacks, and provide actionable security recommendation...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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Penetration Tester - Hybrid Role with Training & Growth

Company IconRed Moon recruitment
Location IconGloucester

Red Moon recruitment is seeking a Penetration Tester for a hybrid role in Gloucester. You will conduct security assessments, identify vulnerabilities, and provide actionable recommendations. This position involves working with a range of clients a...Read More>>.

Posted: June 8th, 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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Hands-on Cyber Penetration Tester – Cloud & Apps

Company IconeasyJet Airline Company PLC
Location IconLondon

easyJet Airline Company PLC is seeking a Digital Safety Penetration Tester in Luton. You will engage in ethical hacking across diverse applications and infrastructures, identifying vulnerabilities and enhancing security measures.The ideal c...Read More>>.

Posted: June 12th, 2026
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Digital Safety Penetration Tester

Company IconeasyJet Airline Company PLC
Location IconLondon

Job Description Digital Safety Penetration Tester (16997) We are easyJet – a FTSE listed, £multi‑billion low‑cost airline that serves tens of millions of customers every single year. If you’re reading this, you have proba...Read More>>.

Posted: June 12th, 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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Penetration Tester - Quant trading firm - London

Company IconLa Fosse
Location IconLondon

A leading quantitative investment management firm is looking to hire a Penetration Tester to join its established Security Assurance function. The business operates at the intersection of technology and financial markets, running complex, high-...Read More>>.

Posted: June 13th, 2026
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Senior Penetration Tester — Infra & Web Assessments

Company IconBridewell
Location Icon

Bridewell is seeking an experienced Senior Penetration Tester to deliver high-quality security assessments and work on exciting projects.The position offers a hybrid working policy, dedicated training budget, and opportunities for personal...Read More>>.

Posted: June 14th, 2026
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Digital Safety Penetration Tester

Company IconeasyJet
Location IconLuton

About easyJet easyJet is a FTSE-listed, multi‑billion‑pound low‑cost airline that serves tens of millions of customers each year and operates a network of over 1,200 routes across 38 European countries. Role Overview...Read More>>.

Posted: June 15th, 2026
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Senior Penetration Tester — In‑Lab Security & Telecoms

Company IconNational Physical Laboratory
Location Icon

The National Physical Laboratory in Birmingham seeks skilled professionals for security assessments and penetration testing roles. Applicants should have a background in infrastructure, networking, or software development, along with hands-on pene...Read More>>.

Posted: June 15th, 2026
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Penetration Tester United Kingdom

Company IconBugcrowd Inc.
Location Icon

Bugcrowd is a security platform that empowers organizations to protect themselves against threat actors by uniting the collective expertise of elite hackers, supported by data and AI‑powered technology. Position Summary Bugcro...Read More>>.

Posted: June 20th, 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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SC-Cleared Penetration Tester (Hybrid/Lab)

Company IconUK Telecoms Lab (UKTL)
Location Icon

UK Telecoms Lab (UKTL) is seeking skilled individuals to conduct security assessments and penetration tests in a controlled environment. The ideal candidate will possess hands-on experience in testing various technologies, produce technical report...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 IT & OT Security Penetration Tester

Company IconPA Consulting
Location IconCity of Westminster

PA Consulting in City of Westminster is seeking a penetration testing expert to work in a hybrid environment, collaborating with teams on diverse projects to enhance security practices.The ideal candidate will hold industry-recognized certi...Read More>>.

Posted: June 26th, 2026
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Remote Infrastructure Penetration Tester

Company IconPunk Security Ltd.
Location IconNorth East

Punk Security Ltd. in North East England is seeking junior and mid-level penetration testers to support our infrastructure team. You will engage in diverse technologies, conducting penetration tests and contributing to professional reports....Read More>>.

Posted: June 28th, 2026
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Trainee Penetration Tester - job guarantee

Company IconNewto Training
Location Icon

Kickstart Your Career in Ethical Hacking – With Guaranteed Job Opportunities Are you ready to break into one of the fastest-growing industries? Cyber professionals are in high demand worldwide, and Newto Training can help you bec...Read More>>.

Posted: July 5th, 2026
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Trainee Penetration Tester

Company IconNewto Training
Location Icon

Kickstart Your Career in Ethical Hacking – With Guaranteed Job Opportunities Are you ready to break into one of the fastest-growing industries? Cyber professionals are in high demand worldwide, and Newto Training can help you bec...Read More>>.

Posted: July 5th, 2026
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Junior Penetration Tester

Company IconNewto Training
Location Icon

Kickstart Your Career in Ethical Hacking – With Guaranteed Job Opportunities Are you ready to break into one of the fastest-growing industries? Cyber professionals are in high demand worldwide, and Newto Training can help you bec...Read More>>.

Posted: July 5th, 2026
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Penetration Tester (CTM)

Company IconOscar Associates (UK) Limited
Location IconCheltenham

Penetration Tester | CHECK Team Member | £50-55k We're working with a growing UK cyber security consultancy delivering penetration testing services to government and public sector organisations.They're looking for a...Read More>>.

Posted: June 30th, 2026
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Penetration Tester (CHECK Team Member)

Company IconOscar Associates (UK) Limited
Location Icon

Role: Penetration Tester (CHECK Team Member)Location: United Kingdom - Remote Salary: £40,000 - £50,000Type: Permanent, Full-TimeSummary:...Read More>>.

Posted: July 3rd, 2026
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