Junior Penetration Tester Jobs In Sheffield Page 6 by Location

Penetration Tester

Company IconVIQU Limited
Location IconLondon

Overview In this role you will deliver end-to-end penetration testing engagements across web applications, APIs, infrastructure, networks, cloud and mobile environments. You will work directly with clients, help scope engagements, and prese...Read More>>.

Posted: September 30th, 2026
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Security Testing Consultant (Penetration Tester) Hybrid

Company IconBAE Systems
Location IconFrimley

Overview In this role you will conduct security testing across web, infrastructure, cloud, and external surfaces to identify and remediate vulnerabilities. You will work with cross-functional teams within a threat intelligence and security...Read More>>.

Posted: September 30th, 2026
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Penetration Tester

Company IconBarclays
Location IconManchester

Overview As a Penetration Tester, you will help protect our organisation by identifying vulnerabilities in web, network, mobile, and client applications. You’ll work within a collaborative security testing team, turning findings into acti...Read More>>.

Posted: October 1st, 2026
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Penetration Tester

Company IconG Research
Location IconLondon

Overview As a Penetration Tester, you will lead penetration tests and assess vulnerabilities across internal systems and security controls. You strengthen our security posture through ongoing testing, actionable remediation guidance, and co...Read More>>.

Posted: October 1st, 2026
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Senior Penetration Tester

Company IconMorson Group
Location Icon

Overview In this role you will lead hands-on penetration testing across complex environments, delivering security assessments for public sector, CNI, and large enterprises. You’ll work with cloud, containerized tech, and on-prem infrastru...Read More>>.

Posted: October 10th, 2026
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Cyber Security Penetration Testing Consultant

Company IconAccenture
Location IconLondon

Overview In this role you will perform hands-on security testing of client web applications, APIs and infrastructure, working within a collaborative testing team supported by senior testers. You will identify vulnerabilities, demonstrate th...Read More>>.

Posted: October 14th, 2026
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Penetration Tester

Company Icon4Square Recruitment Ltd
Location IconManchester

Penetr Tester – Cyber Security Consultancy About the Role We’re looking for a skilled Penetration Tester to join a growing, highly regarded UK cyber security practice. You’ll be part of an established, CREST-accredited tea...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconPlatform Recruitment
Location IconLondon

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:...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconComputer Network Defence Ltd (CND)
Location IconCheltenham

Get AI-powered advice on this job and more exclusive features.Direct message the job poster from Computer Network Defence Ltd (CND)Cyber Security Recruitment Manager at Computer Network Defence Ltd (CND) | BTL1 | Net+...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconUltima
Location IconReading

Global Talent Acquisition Manager at Ultima Business Solutions - Driving Digital Transformation with the use of Artificial Intelligence and Automation Are you an ambitious cybersecurity professional with a passion for uncovering vulner...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconiFindTech Ltd
Location IconLondon

Direct message the job poster from iFindTech LtdWork Across Internal Security, Compliance & Client EngagementsA fast-growing security-focused business is looking for a Penetration Tester to join their expanding team....Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconTesco
Location IconWelwyn Garden City

About the role We are passionate about step changing our cyber security capability to better protect customers and colleagues across our global business, and we’re building an internal penetration testing function to complement and h...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconHarrington Starr
Location Icon

Harrington Starr has partnered with a global, multi-billion-pound business in Belfast to seek a Vulnerability and Penetration Testing Engineer. This role involves providing security architecture, vulnerability, and risk assessments within their Be...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconLocke and McCloud
Location Icon

Direct message the job poster from Locke and McCloudSenior Recruitment Consultant - Cyber Security at Locke and McCloudI am working with a well-established Cyber Security Consulting and Insurance firm who are looking for a Penetrat...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconPrimis
Location Icon

OverviewThis range is provided by Primis. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay range$45,000.00/yr - $60,000.00/yrDirect message the job p...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconAlexander Associates Technical Recruitment
Location Icon

Get AI-powered advice on this job and more exclusive features.Alexander Associates Technical Recruitment provided pay rangeThis range is provided by Alexander Associates Technical Recruitment. Your actual pay will be based on your...Read More>>.

Posted: June 6th, 2026
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Penetration tester

Company IconSynergy Solutions International Limited
Location IconLondon

Synergy Solutions International Limited is a London based Consultancy firm providing IT expertise and services as part of Software as a Service (SaaS) working model. We aim to provide affordable and efficient software expertise to individuals,...Read More>>.

Posted: June 6th, 2026
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Penetration Tester

Company IconBarlowe LLP
Location IconLondon

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world‑class researchers and engineers in an environment that values deep exploration and methodi...Read More>>.

Posted: July 25th, 2026
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Penetration Tester

Company IconGuideposts Trust Limited
Location IconCardiff

Full time, Monday - Friday, 37.5 hours per week. Overview We are looking for a skilled Penetration Tester to join our growing team. This role will be performing manual penetration testing duties across several disciplines using...Read More>>.

Posted: July 29th, 2026
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Penetration Tester

Company IconUKTL
Location Icon

Salary: £40,000 - 80,000 per yearRequirements:Conduct security testing on hardware and software to uncover vulnerabilities in complex systems.Apply positive and negative testing techniques to stress-test ne...Read More>>.

Posted: September 8th, 2026
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Senior Penetration Tester

Company IconBridewell
Location IconLondon

As a result of growth, weare looking for an experiencedSeniorPenetration Testerwith solid experience of infrastructureandwebapplicationtestingto delivertesting engagementson a range of key client work. This is an excellent opportunity fo...Read More>>.

Posted: September 11th, 2026
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Threat & Vulnerability Penetration Tester (TVM)

Company IconThames Water
Location IconReading

Thames Water is seeking a Security Penetration Tester to support TVM solutions and vulnerability remediation across the IT estate. You will work with Digital teams to ensure mitigations are implemented and maintained, aiming for high security, com...Read More>>.

Posted: September 13th, 2026
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Security Consultant: Penetration Testing Specialist (Hybrid)

Company IconCitation Cyber
Location IconGuildford

Citation Cyber in the United Kingdom is seeking a Security Consultant to join a hybrid team delivering penetration testing across client environments. You’ll identify vulnerabilities, report findings and advise on remediation while collaborating...Read More>>.

Posted: September 16th, 2026
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Penetration Testing Security Consultant (CHECK/SC)

Company IconCitation Cyber
Location IconPortsmouth

Citation Cyber is a leading UK cyber security consultancy delivering penetration testing and related services. We are looking for a Security Consultant to join our CHECK-aligned penetration testing team, delivering assessments across client enviro...Read More>>.

Posted: September 16th, 2026
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Penetration Testing Security Consultant – Hybrid, Training & Growth

Company IconCitation Cyber
Location IconPreston

Citation Cyber in the UK is seeking a Security Consultant (Penetration Testing) to join our hybrid team. You will deliver security assessments across client environments, identify vulnerabilities and advise on remediation.The ideal candidat...Read More>>.

Posted: September 16th, 2026
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Security Consultant: Penetration Testing & Cloud Assessments

Company IconCitation Cyber
Location IconBirmingham

Citation Cyber is seeking a Security Consultant to join its penetration testing team. You’ll deliver security assessments across client environments, identify vulnerabilities and help strengthen cyber resilience.You will conduct infrastru...Read More>>.

Posted: September 16th, 2026
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Security Consultant: Penetration Testing & Hybrid Work

Company IconCitation Cyber
Location IconBath

Citation Cyber is seeking a Security Consultant (Penetration Testing) in the UK on a hybrid basis. You will perform infrastructure and web application testing, cloud security assessments, and deliver clear reports with remediation guidance....Read More>>.

Posted: September 16th, 2026
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Penetration Testing Security Consultant (Hybrid, Training)

Company IconCitation Cyber
Location IconWakefield

Citation Cyber is seeking a Security Consultant (Penetration Testing) to deliver comprehensive assessments for client environments in a hybrid UK role. You will conduct infrastructure and web application tests, produce clear reports, and present f...Read More>>.

Posted: September 16th, 2026
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Security Testing Consultant (Penetration Tester) Hybrid

Company IconBAE Systems Digital Intelligence
Location IconFrimley

Location(s): UK, Europe & Africa : UK : Frimley || UK, Europe & Africa : UK : Gloucester || UK, Europe & Africa : UK : Guildford || UK, Europe & Africa : UK : Leeds || UK, Europe & Africa : UK : London || UK, Europe & Africa : UK : Manchester B...Read More>>.

Posted: September 21st, 2026
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Security Testing Consultant | Penetration Tester

Company IconBAE Systems Digital Intelligence
Location IconFrimley

BAE Systems Digital Intelligence in the UK seeks a Security Testing Consultant - Penetration Tester to perform and lead security assessments across web apps, infrastructure, cloud and external surfaces. You will work with CTS teams to build threat...Read More>>.

Posted: September 22nd, 2026
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Penetration Tester

Company IconBarclays Bank Plc
Location IconManchester

Job DescriptionPurpose of the roleTo identify potential vulnerabilities within the banks IT systems using penetration testing tools and techniques to ensure security of computer systems, applications, servers, and networks....Read More>>.

Posted: September 30th, 2026
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Junior Penetration Tester

Company IconHamilton Barnes ?
Location IconFareham

Junior Penetration Tester | Up to £30,000 | Office-Based, Fareham Join one of the UK's multi award-winning MSSPs as a Junior Penetration Tester, based in their Fareham office, where you'll take your first step into a professional offensi...Read More>>.

Posted: October 7th, 2026
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Junior Penetration Tester – Web, API & Cloud Security

Company IconLloyds Banking Group
Location Icon

Lloyds Banking Group is seeking a Junior Penetration Tester to join its Security Testing team. You’ll support offensive security testing across web, API, mobile, infra and cloud assets within a regulated financial services environment, reporting...Read More>>.

Posted: October 11th, 2026
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Penetration Tester – Web, API & Infra (Hybrid UK)

Company IconAccenture UK
Location IconLondon

Accenture is seeking a Cyber Security Penetration Tester to deliver hands-on testing of client web applications, APIs and infrastructure across the UK. You will work in a collaborative testing team with CHECK Team Leaders, performing manual and to...Read More>>.

Posted: October 11th, 2026
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Lead Ethical Hacking Penetration Tester

Company IconDriver & Vehicle Licensing Agency
Location IconSwansea

Salary: £57,515 - 82,430 per year Requirements Experience leading penetration testing and ethical hacking activities within complex enterprise environments. Experience designing and delivering vulnerabilit...Read More>>.

Posted: October 11th, 2026
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Senior Penetration Tester – Web, Network & Mobile Security

Company IconBarclays
Location IconManchester

Barclays is hiring a Penetration Tester at the Assistant Vice President level, based in Knutsford (Radbroke Hall) or Manchester (4 Piccadilly Place). The role involves leading security assessments across web, network and mobile environments, deliv...Read More>>.

Posted: October 12th, 2026
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Senior QA Engineer - Cloud Security Testing (Hybrid Belfast)

Company IconOcho People Ltd.
Location IconNorthern Ireland

Ocho People Ltd. in Belfast is seeking a senior, hands-on QA Engineer to lead test strategy across multiple Belfast teams.You’ll write test code weekly, build and own testing frameworks, and set the standard for how engineers test their w...Read More>>.

Posted: October 12th, 2026
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Cyber Security Penetration Testing Consultant

Company IconAccenture UK
Location IconLondon

Job Title: Cyber Security Penetration Testing ConsultantLocations: UK wide (hybrid work- 1x a month in office)Salary: Competitive salary and package (Depending on level of experience)Please Note: Any offer of employment is sub...Read More>>.

Posted: October 13th, 2026
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Security Engineer-Pentest, Continuous Security Testing

Company IconAmazon Inc.
Location IconLondon

Security Engineer-Pentest, Continuous Security Testing Job ID: 10575736 | Amazon Development Centre (London) Limited We are looking for a Security Engineer to join Continuous Security Testing (CST), the AWS team that thinks like an...Read More>>.

Posted: October 14th, 2026
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Cyber Security Penetration Testing Consultant

Company IconAccenture UK & Ireland
Location IconLondon

Job Title: Cyber Security Penetration Testing ConsultantLocations: UK wide (hybrid work- 1x a month in office)Salary: Competitive salary and package (Depending on level of experience)Please Note: Any offer of employment...Read More>>.

Posted: October 15th, 2026
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Penetration Tester: Hands-on Security Defender

Company IconQuik Hire Staffing
Location Icon

We are hiring for one of our clients, seeking a Penetration Tester to work on a Full-Time basis. The role involves identifying and exploiting vulnerabilities in systems, networks, and applications to assess security posture. Responsibilities inclu...Read More>>.

Posted: October 8th, 2026
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Penetration Tester

Company Iconbeaumont
Location Icon

Enjoy getting hands-on with security testing and helping clients understand what to fix and why? I'm looking for a Cyber Security Consultant to join an established IT services business, working with clients to identify vulnerabilities and i...Read More>>.

Posted: October 9th, 2026
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Senior Penetration Tester: Lead Offensive Security

Company IconSaepio Solutions Ltd
Location Icon

Ruptura InfoSecurity is seeking an experienced Senior Penetration Tester to lead complex testing engagements across infrastructure, web apps, cloud and internal environments. You will identify attack paths, craft remediation guidance and present f...Read More>>.

Posted: October 12th, 2026
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Hybrid Penetration Tester - Secure Banking Tech & Cloud

Company IconLloyds Banking Group
Location IconManchester

Lloyds Banking Group is seeking a Junior Penetration Tester in Manchester with hybrid working. You will support offensive security testing across web, API, mobile, infrastructure and cloud assets, planning, executing and reporting engagements to s...Read More>>.

Posted: October 9th, 2026
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Graduate Security Consultant / Penetration Tester

Company IconOscar Technology
Location IconRowberrow

Graduate Security Consultant / Penetration Tester Bristol £28,000-£34,000About the roleOur client is looking for a motivated graduate to join a cyber consultancy team in Bristol, beginning a career in security consulting a...Read More>>.

Posted: October 9th, 2026
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Graduate Penetration Tester — Mentored Security Consultant Path

Company IconOscar Technology
Location Icon

Oscar Associates (UK) Limited is seeking a Graduate Security Consultant / Penetration Tester in Bristol, offering structured mentorship and training from day one to start a career in cyber consultancy and security testing.This entry point r...Read More>>.

Posted: October 9th, 2026
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Penetration Tester (Hybrid) - Banking Security

Company IconLloyds Bank plc
Location IconManchester

Lloyds Banking Group is seeking a Junior Penetration Tester to join our Security Testing team in a hybrid role across multiple UK sites, including Manchester. You will perform security testing across Web, API, and infrastructure, and work closely...Read More>>.

Posted: October 11th, 2026
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Junior Penetration Tester - Hybrid & Growth

Company IconLloyds Banking Group
Location IconLeeds

Lloyds Banking Group in the United Kingdom is seeking a Junior Penetration Tester to join the Chief Security Office's Security Testing team. You will plan, execute and report on offensive security engagements across web, API, mobile, infrastructur...Read More>>.

Posted: October 11th, 2026
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Hands-On Physical Security Tester for Product Testing

Company IconBRE
Location IconWatford

BRE is seeking a Physical Security Technician to join our Assurance Division in Watford. The role is hands-on, focusing on testing physical security products against national, international, and LPCB standards.You will conduct manual attack...Read More>>.

Posted: October 16th, 2026
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