1 to 25 of 47 Penetration Tester Jobs in the UK excluding London

At Vertical Structure (an Instil Company), we specialise in providing human-focused security and penetration testing services for web applications, cloud infrastructure and mobile applications. The Role We are looking for a CTL (Infrastructure) to join our dynamic team based in Belfast. As a Pen Tester, you will be part of the delivery team, conducting penetration tests … validate infrastructure and technologies, including cloud-based systems continuously incorporating new techniques into the team's methodology. Automate repetitive tasks by developing scripts to streamline testing processes. Mentor junior penetration testers and contribute to their professional development. Play a key role in enhancing existing tools, methodologies, and reports. Support pre-sales efforts by acting as a penetration testing … non-technical stakeholders. Contribute to thought leadership by writing blogs/white papers and/or speaking at conferences. Need to Have At least 5 years of experience in penetration testing. UK Cyber Security Council Chartership status of Principal or above. Subject matter expertise in web, mobile or network penetration testing with track record of end to end More ❯

Summary: CCL Solutions Group is seeking an exceptional Senior Penetration Tester with CHECK Team Leader Infrastructure (CTL-INF) qualifications to join our elite team of security professionals. Location: Home based Main Job Summary This is more than just a job, we're looking for individuals with a hacker's mindset, deep technical expertise, and a relentless drive to … leading provider of cybersecurity services, we are a team committed to making a real difference in protecting communities, businesses, and the critical infrastructure of the UK. As a Senior Penetration Tester within CCL Solutions Group, your key responsibilities will be: Lead and deliver end-to-end penetration testing engagements across infrastructure and cloud environments. Manage and mentor … Leader certification (Cyber Scheme Team Leader - INF or CREST CCT-INF). Minimum of 2 years delivering CHECK engagements as a CTL. At least 3 years of hands-on penetration testing experience in enterprise environments. Deep understanding of infrastructure testing, Active Directory security, and cloud technologies (AWS, Azure, Kubernetes). Strong familiarity with tools such as Nmap, Burp Suite More ❯

Ocho are exclusively working on a number of Penetration Tester roles! If you're passionate about ethical hacking and want to work on real-world cybersecurity challenges, this is the role for you. This organisation is on a serious growth trajectory, having secured major clients and high-profile projects, offering you the chance to work on cutting-edge … security challenges in a dynamic and ambitious environment. What You'll Be Doing: Perform penetration tests on networks, applications, and infrastructure. Identify and exploit vulnerabilities to strengthen security defences. Use tools like Burp Suite, Nessus, Metasploit, and Kali Linux. Provide detailed reports with clear, actionable recommendations. Experience required: Strong knowledge of OWASP, CVE, and security frameworks. Hands-on experience … with ethical hacking & exploit techniques. Scripting & automation skills a plus. Ability to communicate findings to technical and non-technical teams. Proficiency in using penetration testing tools such as BurpSuite Pro, Nmap, Nessus, and Metaspolit. Experienced in using Kali Linux and the associated penetration testing tool suite Nice to Have: Relevant security certifications (e.g. OSCP, CREST, Cyber Scheme.) UK More ❯

GoDefend is seeking a Penetration Tester with over three years of hands-on experience in offensive security. Youll join a growing, fast-paced cyber security team where your technical expertise and strong client-facing skills will directly contribute to our customers security posture. This hybrid role is ideal for a technically skilled professional who is also confident communicating … with clients and translating complex risks into clear business language. What Youll Be Doing: Conduct penetration testing across web applications, mobile apps, cloud platforms, and internal networks. Perform detailed vulnerability assessments and provide actionable remediation guidance. Create professional, jargon-free reports suitable for both technical and non-technical audiences. Lead or support scoping calls with clients to define the … propose preventative security controls. Keep abreast of emerging threats, vulnerabilities, and tools to enhance internal testing capabilities. What Were Looking For: Technical Skills: Minimum 3 years of hands-on penetration testing experience. Skilled in testing: Web apps, Mobile apps, Cloud (AWS, Azure, GCP), and On-prem infrastructure. Familiar with Burp Suite, Metasploit, Nmap, Wireshark, and other industry tools. Scripting More ❯

We are currently seeking a highly skilled and results-oriented Penetration Tester with at least 5 years of hands-on penetration testing experience. This is a rare opportunity to join a highly skilled and diverse security team committed to continuous growth and excellence in the field of offensive security. This role is office-based with occasional travel … to client site. Key Responsibilities Lead internal and external penetration tests, including web, mobile, infrastructure, wireless, cloud, and social engineering. Execute red team, purple team, and breach simulation exercises tailored to client maturity and objectives. Deliver detailed and actionable penetration testing reports Collaborate with clients to understand their specific security needs and present findings in a clear manner. … Develop and maintain security testing methodologies and procedures in alignment with industry best practices. Reviewed penetration test reports to ensure they are up to standard and meet test objectives. Mentor junior penetration testers. Assist in incident response activities, including investigation, containment, and remediation of security incidents. Conduct cloud security assessments. Essential Requirements Must be currently residing in mainland More ❯

Penetration Tester (OSCP Certified) - Up to £45,000 DOE Location: UK fully remote Salary: Up to £45,000 per annum, dependent on experience Employment Type: Full-Time, Permanent Eligibility: UK Residents only (UK Passport or Indefinite Leave to Remain required) - Unfortunately, PSW Visas cannot be considered. A very exciting growth role for the right person! I'm an … experinced cyber recruiter (of 20 yrs+) ready to talk to qualified individuals. We are currently seeking an enthusiastic and technically capable Penetration Tester with at least 6 months of hands-on penetration testing experience and a strong interest in developing advanced technical skills. This is a rare opportunity to join a highly skilled and diverse security team … committed to continuous growth and excellence in the field of offensive security. Key Responsibilities: Conduct hands-on Web Application Penetration Testing Support and contribute to Infrastructure and Cloud Security Assessments Be mentored and trained towards Adversarial Simulation , Red Team Operations , and other advanced offensive security techniques Write detailed, clear, and professional reports for technical and non-technical stakeholders Collaborate More ❯

Penetration Tester (OSCP Certified) - Up to £45,000 DOE Location: UK fully remote Salary: Up to £45,000 per annum, dependent on experience Employment Type: Full-Time, Permanent Eligibility: UK Residents only (UK Passport or Indefinite Leave to Remain required) - Unfortunately, PSW Visas cannot be considered. A very exciting growth role for the right person! I'm an … experinced cyber recruiter (of 20 yrs+) ready to talk to qualified individuals. We are currently seeking an enthusiastic and technically capable Penetration Tester with at least 6 months of hands-on penetration testing experience and a strong interest in developing advanced technical skills. This is a rare opportunity to join a highly skilled and diverse security team … committed to continuous growth and excellence in the field of offensive security. Key Responsibilities: Conduct hands-on Web Application Penetration Testing Support and contribute to Infrastructure and Cloud Security Assessments Be mentored and trained towards Adversarial Simulation , Red Team Operations , and other advanced offensive security techniques Write detailed, clear, and professional reports for technical and non-technical stakeholders Collaborate More ❯

Senior Penetration Tester | 12 Month Initial Contract | £750 - £850 per day (Inside IR35) | Cheltenham or London | 1 day per week on-site | SC Clearance Eligibility Required MERITUS Talent are working with a boutique Defence consultancy supporting a UK Central Government department in their Cyber Security function. We're looking for an experienced Senior Penetration Tester with … leads, particularly those working independently without peer support. Advising the wider project team on best practices in red teaming and adversary simulation. Skills Required: Solid hands-on experience in penetration testing and red teaming, particularly in operational environments. A background in technical QA - reviewing, validating, and improving the output of other testers. Experience as an assessor or contributor to More ❯

Penetration Tester £up to £100,000 GBP Bonus Hybrid WORKING Location: United Kingdom (Greater London) Type: Permanent Role: Penetration Tester (Infrastructure Focus) Work Type & Location: Hybrid - London preferred (other UK locations considered) Role Type: Permanent Start Date: Immediate Anson McCade is proud to be supporting a global innovation and transformation consultancy in growing their elite Digital … Data team. We're seeking a Penetration Tester with a deep focus on infrastructure and Active Directory environments. This isn't your typical web app testing role-this is hands-on, internal infrastructure testing in high-stakes client environments (defence, critical infrastructure, national security). This is a high-trust, high-impact role for someone confident in navigating … sensitive networks, with the ability to think independently, consult directly with clients, and deliver clear, actionable insights. As a Penetration Tester, you will: • Deliver internal infrastructure penetration tests, including Active Directory environments • Act as a trusted advisor to clients-this is a hands-on consulting-facing role • Document clear, concise technical reports for both technical and non More ❯

Role: Penetration Tester Type: Permanent Location: Cheltenham/Remote Clearance: SC/DV Are you an offensive security specialist who is excited about delivering the best service possible? Keen to work in a business where you stand to work alongside some very talented testers? CND are working with a boutique Cyber Security consultancy who are focused on the … Penetration Testing market. What makes them stand out? They are not interested in flashy marketing and would never be caught trying to pass off a Nessus scan as a Penetration Test. The business has been built on delivering excellent testing and reports as well as ensuring that clients see the real benefits of their testing outputs. The company … have an office in Cheltenham however you are welcome to work where is best for you. Key Responsibilities: • Work to deliver CHECK penetration testing services • Lean into non-CHECK work where necessary • Work with the sales team to flesh out technical input as needed • Deliver quality reports to customers, • Stay up to date with industry trends and new attack More ❯

an enthusiastic Cyber Security Consultant to join our team. Working alongside our experienced team of specialists, you'll be delivering offensive security services including digital footprint reconnaissance, social engineering, penetration testing and vulnerability assessments to high profile clients across all industries. The purpose of this role is to deliver our offensive security services including digital footprint reconnaissance, social engineering … vulnerability assessments, penetration testing, threat modelling, cyber-attack simulation exercises, and more to high profile clients across all industries. You'll benefit from ongoing coaching, career mentoring, and be supported by our career pathway. You will have an opportunity to continue to develop market leading skills across our different capabilities and advance your professional development. You will make an … improvements, this role is perfect for you! We value diverse experiences and perspectives. Here's what we're looking for in our ideal candidate: Experience in offensive security and penetration testing. Demonstrable experience in infrastructure and web application testing; experience in API testing is desirable. Demonstrable experience using common pentesting tools including Kali Linux, Burpsuite, Nessus and other industry More ❯

Penetration Tester – Infrastructure Salary: £70,000–£100,000 (depending on experience) Location: Hybrid – London (2 days per week on-site) Note: To be eligible for this role, you must be eligible for UK Security Clearance (SC). A high-performing digital security team is looking for an experienced Infrastructure Penetration Tester to join them in delivering … is suited to testers who thrive in technically demanding scenarios, want autonomy, and are motivated by work with real-world impact. Key Responsibilities Conduct internal infrastructure and Active Directory penetration tests in live production environments Produce clear, concise reports tailored to both technical and non-technical audiences Build trusted relationships with clients in a consultancy-facing capacity Work within … the evolution of internal tooling and testing methodologies Operate effectively in environments with limited documentation or predefined processes Essential Experience and Skills At least 4 years’ experience in infrastructure penetration testing Strong knowledge of Active Directory exploitation techniques (privilege escalation, lateral movement, etc.) Confident working in high-stakes, sensitive environments Strong command-line skills across Windows and Linux systems More ❯

like SAST and DAST deployments. Provide technical support with risk assessments on PHI, and steering improvements to our environment in line with common standards such as NIST. Support External Penetration Testing and application vulnerability efforts, delivering assessments and prioritizing remediation activities across the organization. Be across Threat Intelligence relevant to our industry and geographic regions, and translating that to … with our technology teams. Who You Are - some of the essential things required to be successful in the role At least 4 years' experience in securing software or infrastructure, penetration testing or pure product or application security Strong expertise in offensive security techniques and methodologies, including ethical security testing Deep understanding of secure coding practices, common vulnerabilities and risk More ❯

Are you a cybersecurity enthusiast with expertise in penetration testing across infrastructure, web applications, mobile, and cloud environments? A Penetration Tester is needed to deliver high-quality security assessments and support clients in identifying and addressing vulnerabilities across their technology landscape. Based near Doncaster or Manchester, this role involves hands-on penetration testing across infrastructure and … web, or cloud testing. Looking to deepen your expertise and work on meaningful security challenges? Apply now to be part of a team delivering real impact. Key Responsibilities: Conduct penetration testing on infrastructure, web applications, mobile platforms, and cloud environments to uncover vulnerabilities. Analyze testing outcomes and provide actionable recommendations to improve security measures. Collaborate with cross-functional teams … to develop and implement security strategies. Stay updated on emerging cybersecurity threats and adapt testing methodologies accordingly. Skills & Requirements: Proven experience in penetration testing for infrastructure, web applications, mobile, and cloud environments. Strong understanding of networking protocols, systems architecture, and security best practices. Proficiency in using penetration testing tools and techniques to identify vulnerabilities. Excellent problem-solving skills More ❯

Senior Penetration Tester -240,000+ Total Package Entasis Partners are proud to be exclusively supporting a global organisation at the forefront of innovation in financial systems and high-performance computing. This is not your average security role. Our partner operates in a deeply technical, high-trust environment where the scale of data, the pace of experimentation, and the … of internal talent make for an exceptionally challenging and rewarding opportunity. With a newly developed central London site focused on next-generation research, this firm is seeking a Senior Penetration Tester to strengthen its already world-class internal security capability. The Opportunity This is a hands-on, highly autonomous role embedded within a specialist cyber function. You’ll … be trusted to scope, execute, and deliver sophisticated penetration tests and control assessments across a range of technologies including Kubernetes, Jenkins, and Windows-based infrastructure. More than just finding issues, you’ll work in partnership with teams across the business to advise, remediate, and embed meaningful improvements. The environment is agile, collaborative, and engineered for depth not red tape. More ❯

this requirement will not be considered. Cyber Guarded Ltd is a long-established and independent cyber security firm based in Belfast. As the premier NCSC-approved supplier for CHECK Penetration Testing in Northern Ireland, including Cyber Incident Exercising being conducted at the highest levels, along with Cyber Advisor – Cyber Essentials, we support clients across both public and private sectors. … As we continue to grow significantly, securing contracts across Northern Ireland, we’re strengthening our technical team to meet demand. We’re looking for experienced Penetration Testers who are passionate about cyber security, thrive on technical challenges, and want to be part of a trusted and growing consultancy. What you’ll do: Conduct infrastructure, app, cloud & OT penetration … remediation advice Work hands-on with clients from scoping through debrief Contribute to tooling, methodology and internal R&D What we’re looking for: 2+ years’ paid employment in penetration testing CHECK Team Lead or CHECK Team Member status (or equivalent) CTL must hold UK CSC Professional Title at Principal level or above Strong knowledge of networks, OS (Linux More ❯

Why join Dionach by Nomios? Since being acquired by Nomios in late 2024, Dionach by Nomios has continued its dynamic growth as a leading information security company. Specializing in penetration testing and information assurance services, we offer an incredible opportunity to be part of an experienced team, build your skills, and grow professionally. Dionach by Nomios holds impressive certifications … If you require accommodations during the application process, let us know, and we'll work to meet your needs. What You'll Do Lead and mentor a team of Penetration testers, fostering a collaborative and high-performance work environment. Lead and oversee complex infrastructure penetration tests ensuring that they are conducted thoroughly and in accordance with project requirement. … and mobile application tests, internal tests, infrastructure tests, but also, social engineering. Ensure all testing activities comply with CHECK standards. What We're Looking For Experience : Significant experience in penetration testing, including network, web application and internal penetration testing as well as experience of leading customer engagements on-site. Communication : Strong verbal and written skills for stakeholder management More ❯

Join a dynamic cybersecurity team near Doncaster or Manchester, where you'll play a key role in securing clients' digital landscapes. As a penetration testing expert, you will work on cutting-edge projects across infrastructure, web applications, mobile, and cloud environments. Collaborating with a talented team, you'll have the opportunity to contribute to innovative cybersecurity solutions while enjoying … continued growth and development in the field. Take the next step in your cybersecurity career-apply now! Responsibilities: Conduct penetration testing on infrastructure, web applications, mobile platforms, and cloud environments to uncover vulnerabilities. Analyze testing outcomes and provide actionable recommendations to improve security measures. Collaborate with cross-functional teams to develop and implement security strategies. Stay updated on emerging … cybersecurity threats and adapt testing methodologies accordingly. Skills/Must Have: Proven experience in penetration testing for infrastructure, web applications, mobile, and cloud environments. Strong understanding of networking protocols, systems architecture, and security best practices. Proficiency in using penetration testing tools and techniques to identify vulnerabilities. Excellent problem-solving skills with a detail-oriented approach. Must be able More ❯

to work in a business where you stand to work alongside some very talented testers? CND are working with a boutique Cyber Security consultancy who are focused on the Penetration Testing market. What makes them stand out? They are not interested in flashy marketing and would never be caught trying to pass off a Nessus scan as a Penetration … tests. Currently holds a CHECK equivalency certification. Eligibility to hold or currently hold clearance. Experience working with Linux and Windows OS. Strong understanding of working with common tooling for penetration testing. Ideally, a knowledge of Cloud services such as Azure or AWS. Capability to script or code in Bash, Python etc. Appreciation for Cyber Security standards such as ISO27001 More ❯

Are you looking for an exciting new opportunity? Join a trusted security and compliance partner offering comprehensive services including GRC consulting, CREST-accredited penetration testing, and an industry-leading vulnerability management service. As the number one Global Service Partner of Vanta, the company has a proven track record of helping hundreds of businesses from tech startups to global industry … posture and compliance needs. If you would like to learn more about this opportunity, feel free to reach out and apply today! Responsibilities: Work across the full spectrum of penetration testing and red teaming Contribute to client relationships and leading high-level engagements Scoping and delivering advanced red team assessments Mentoring more junior team members Supporting innovation through offensive … security research Required Skills/Qualifications: Minimum 7 years of penetration testing experience, with at least 4 years in red teaming Strong hands-on background across a range of testing disciplines, including networks, infrastructure, applications, and cloud Comfortable in client-facing roles with strong communication skills Deep understanding of adversary simulation, lateral movement, and offensive tooling Capable of producing More ❯

Job Title: Penetration Tester Job Type: Permanent Salary: Up to £70,000 Location: Belfast/Remote (2 days per week on-site) Penetration Tester - Role & Responsibilities Performing penetration tests across cloud, infrastructure & applications Requirements analysis Manual and automated testing Producing clear & concise reports tailored to client needs. Staying ahead of evolving threats, techniques and industry … standards. Penetration Tester - Required Experience 2+ years' experience in Penetration Testing Knowledge of networking, operating systems (Linux, Windows) and web technologies Familiarity with OWASP Top 10 Excellent communication skills - verbal and written Eligibility for SC Clearance Interviews: June 2025 Start Date: July 2025 How to Apply: Apply to Gary Hargreaves at X4 Technology to learn more about More ❯

Join to apply for the Security Engineer (Pen Tester) role at Sky Join to apply for the Security Engineer (Pen Tester) role at Sky Get AI-powered advice on this job and more exclusive features. Job Description We believe in better. And we make it happen. Job Description We believe in better. And we make it happen. Better … problems? If yes, we want to hear from you! We are a Product Security SDL team consisting of a Security lead, SDL coach, threat model architects, a software pen tester and a hardware assessor. We work with development teams across Group Product to improve their security posture. What You'll Do Perform software security testing and code analysis using More ❯

If you're looking to join an established organisation expanding their penetration testing capabilities. As part of this strategic investment I'm now on the lookout for a number of experienced penetration testers to join the team. This is a genuine opportunity for a penetration tester to deliver impactful testing work - without getting side lined with … of testing disciplines with full investment for training & certifications (including those you personally want to go for) this could be for you. What you'll be doing As a penetration tester you will deliver high-quality tests across a range of environments: Internal/External Infrastructure WebApp, API's Hardware & Embedded Software Cloud (AWS, GCP, Azure) Produce clear … concise and actionable reports for both technical and none technical audiences. Ability to work on your own or collaboratively alongside a skilled team of penetration testers. Engage with clients and internal stakeholders to explain finding and remediation steps wherever appropriate. What's in it for you? Remote first culture - Must be UK Based Exposure to a wide variety of More ❯

If you're looking to join an established organisation expanding their penetration testing capabilities. As part of this strategic investment I'm now on the lookout for a number of experienced penetration testers to join the team. This is a genuine opportunity for a penetration tester to deliver impactful testing work - without getting side lined with … of testing disciplines with full investment for training & certifications (including those you personally want to go for) this could be for you. What you'll be doing As a penetration tester you will deliver high-quality tests across a range of environments: Internal/External Infrastructure WebApp, API's Hardware & Embedded Software Cloud (AWS, GCP, Azure) Produce clear … concise and actionable reports for both technical and none technical audiences. Ability to work on your own or collaboratively alongside a skilled team of penetration testers. Engage with clients and internal stakeholders to explain finding and remediation steps wherever appropriate. What's in it for you? Remote first culture - Must be UK Based Exposure to a wide variety of More ❯

If you're looking to join an established organisation expanding their penetration testing capabilities. As part of this strategic investment I'm now on the lookout for a number of experienced penetration testers to join the team. This is a genuine opportunity for a penetration tester to deliver impactful testing work - without getting side lined with … of testing disciplines with full investment for training & certifications (including those you personally want to go for) this could be for you. What you'll be doing As a penetration tester you will deliver high-quality tests across a range of environments: Internal/External Infrastructure WebApp, API's Hardware & Embedded Software Cloud (AWS, GCP, Azure) Produce clear … concise and actionable reports for both technical and none technical audiences. Ability to work on your own or collaboratively alongside a skilled team of penetration testers. Engage with clients and internal stakeholders to explain finding and remediation steps wherever appropriate. What's in it for you? Remote first culture - Must be UK Based Exposure to a wide variety of More ❯