Junior Penetration Tester Jobs In Sheffield Page 6 by Location

Ethical Hacker / Penetration Tester – no experience needed

Company IconNEWTO TRAINING LIMITED
Location IconSheffield

Ethical Hacker / Penetration Tester – no experience needed From £45,000 - £65,000 *This is a self-funded career programme with a guaranteed job on completion or 100% of your course fees back*Tr...Read More>>.

Posted: October 9th, 2026
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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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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

This range is provided by Platform Recruitment. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay rangeDirect message the job poster from Platform RecruitmentMy C...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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Cyber Security Test Engineer – CI/CD & Automation

Company IconCoreTech Security
Location IconCheltenham

慨正橡扯, located in Cheltenham, seeks a dedicated Test Engineer to ensure the quality and reliability of software solutions delivered to clients, particularly in the Cyber Security sector. The ideal candidate should possess an active Security...Read More>>.

Posted: June 20th, 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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Hybrid IT & OT Security Penetration Tester

Company IconPA Consulting
Location IconCity of Westminster

We believe in the power of ingenuity to build a positive human future.As strategies, technologies, and innovation collide, we create opportunity from complexity.Our teams of interdisciplinary experts combine innovative thinking and b...Read More>>.

Posted: September 9th, 2026
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Senior Penetration Tester — Lead Web, API & Infra Assessments

Company IconBridewell
Location IconLondon

Bridewell is seeking an experienced Senior Penetration Tester to deliver testing engagements across infrastructure and web applications for a range of clients. The role offers a pathway to develop testing methodologies and participate in ongoing p...Read More>>.

Posted: September 11th, 2026
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Secure Test Infra Engineer – On-Site in Somerset

Company IconSiXworks
Location IconTaunton

SiXworks is seeking a QA Test Infrastructure Engineer on-site in Somerset to design, build, and deliver secure digital solutions for highly secure environments. You will work with engineers, architects, and delivery specialists to develop and test...Read More>>.

Posted: September 12th, 2026
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Senior Offensive Security Engineer - Penetration Testing

Company IconAtariinc
Location IconNewcastle upon Tyne

United States Digital Space LLC is seeking a Senior Offensive Security Engineer to assess and strengthen security across IT infrastructure, applications, and networks. You will identify vulnerabilities, perform hands-on penetration testing, and co...Read More>>.

Posted: September 13th, 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 & 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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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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Senior Penetration Tester

Company IconRMT Accountants & Business Advisors Ltd
Location Icon

DescriptionIn 2023, RMT became part of Sumer Group - a collaboration of renowned regional accountancy practices with a shared vision to champion local small to medium-sized enterprises.Department: Operations - ITLo...Read More>>.

Posted: October 2nd, 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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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 9th, 2026
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Calm Exam Invigilator - Ensure Fair, Secure Testing

Company IconAvanti Schools Trust
Location IconBishop's Stortford

Avanti Grange Secondary School is seeking Exam Invigilators to ensure examinations are conducted smoothly, fairly and in accordance with regulations. You will help create a calm, well-organised environment where every candidate can demonstrate the...Read More>>.

Posted: October 9th, 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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Junior Penetration Tester: Grow Into Security Consultant

Company IconNetwork IT Recruitment Limited
Location Icon

Network IT Recruitment Limited is seeking a Penetration Tester / Ethical Hacker or Security Consultant with a strong appetite and actively pursuing relevant certifications (CRT/CSTM etc.). You will perform security tests across Web, Infra, Cloud,...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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Cyber Security Penetration Testing Consultant

Company IconRemote Worker LTD.
Location IconLondon

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

Posted: October 11th, 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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Penetration Testing Security Consultant - Hybrid, Training

Company IconCitation Cyber
Location IconWarmley

Citation Cyber is seeking a Security Consultant (Penetration Testing) to join our hybrid UK team. You’ll deliver a range of security assessments across client environments, identifying vulnerabilities and advising on remediation.Responsib...Read More>>.

Posted: September 16th, 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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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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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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Graduate Test Engineer — Networking & Security Testing

Company IconPrecept Recruit
Location IconEast Midlands

Precept Recruit is seeking a Graduate Test Engineer in Derby to join a growing team. The role requires SC clearance and offers a salary of 25,000–32,000 per year with exceptional benefits. You will test functional, regression and integration asp...Read More>>.

Posted: October 9th, 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 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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Casual Exam Invigilator: Secure Testing Environment

Company IconDudley Academies Trust
Location IconDudley

St James Academy in Dudley is seeking casual exam invigilators to supervise student examinations and ensure a fair, safe, and secure environment in line with exam guidelines.Applicants should be willing to read or scribe for candidates and...Read More>>.

Posted: October 11th, 2026
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Automation Test Engineer – CI/CD, Security & Quality

Company IconDWP Digital
Location IconLeeds

DWP Digital is seeking a Test Engineer to design, build and maintain automated tests for Universal Credit and Working Age Benefits in a UK-based delivery team. You will work within a multi-functional agile group to deliver automated testing soluti...Read More>>.

Posted: October 12th, 2026
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Cyber Security Tester - Manual Pen Testing & Delivery

Company IconRedcentric
Location IconHarrogate

Redcentric is seeking a skilled Cyber Security Tester to deliver manual security engagements with a focus on practical testing and client outcomes. The role requires leading client engagements and working hands-on within our Cyber Security Divisio...Read More>>.

Posted: October 13th, 2026
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