23 of 23 Penetration Tester Jobs in the UK excluding London

Penetration Tester | £40K–£60K + Bonus + Hybrid/remote We’re hiring a Penetration Tester to join one of the UK’s most respected, CREST-accredited cyber security consultancies. You’ll work across public and private sector projects, helping clients identify vulnerabilities, strengthen defences, and build resilience against real-world attacks. This role offers autonomy … variety, and technical depth — all within a collaborative team that genuinely values knowledge sharing, personal growth, and work-life balance. What You’ll Do Conduct penetration tests across web apps, APIs, networks, cloud, and mobile platforms. Participate in Red Team and social engineering engagements. Deliver clear, actionable reports and guide clients through remediation. Contribute to scoping calls, proposals, and … client presentations. Mentor junior testers and help shape the consultancy’s internal security capability. What You’ll Bring 2–5 years’ experience in ethical hacking or penetration testing. Strong understanding of OWASP, web, and infrastructure testing. Experience with Burp Suite, Nmap, Nessus, Qualys, Metasploit, Kali Linux. Familiarity with cloud security (AWS, Azure, or GCP). Confident communicator with client More ❯

Penetration Tester – Bristol | Full-Time | Hybrid with Client Travel Salary: £30,000 - £65,000pa (Depending on experience) My client is a UK-based technology and cybersecurity consultancy delivering cutting-edge solutions across sectors including telecoms, finance, defence, rail, and aerospace. With expertise in cybersecurity, software development, and R&D, they work on some of the most critical and … challenging projects in the UK and beyond. The Role They’re looking for an experienced Penetration Tester to join their expert team in Bristol. You’ll be responsible for conducting advanced penetration tests, red team exercises, and vulnerability assessments, helping clients strengthen their defences and reduce risk. What You’ll Do Perform penetration testing across networks … assessments and red teaming activities Create detailed reports and communicate findings clearly to clients Contribute to internal research and tool development What You’ll Bring 2+ years’ experience in penetration testing or vulnerability assessment CHECK, CREST, or equivalent certification Strong technical understanding of networks, OS, and security tools (Metasploit, Burp Suite, Nmap, etc.) Excellent communication and problem-solving skills More ❯

Junior Penetration Tester (Career Switch Opportunity) Location: Hybrid – Bristol/Cheltenham area (travel a couple of times per month, expenses covered) Salary: £30,000 – £40,000 (depending on experience) Clearance: Must be eligible for SC and DV clearance (British citizenship required) About the Role Our client, a specialist cybersecurity consultancy, is seeking technically skilled professionals who are ready … to transition into a hands-on Penetration Testing role. This position is ideal for candidates currently working in roles such as Network Engineer , Systems Administrator , SOC Analyst , or similar, who are looking to move into offensive security and ethical hacking. As a Junior Penetration Tester, you’ll work alongside experienced security consultants on a variety of client … ll gain exposure to a broad range of testing activities — from infrastructure and web application assessments to red teaming and vulnerability research. Key Responsibilities Assist in the delivery of penetration tests and vulnerability assessments. Support senior testers in scoping, executing, and reporting on client engagements. Develop and document exploits, proof-of-concepts, and findings. Contribute to continuous learning and More ❯

Job Title: Senior Penetration Tester (Infrastructure Focus) Location: London (Hybrid/Flexible) Salary: Up to £80,000 + Bonus + Benefits Employment Type: Permanent Overview We are seeking an experienced Senior Penetration Tester with a strong background in infrastructure security testing to join a growing offensive security team. The ideal candidate will have deep technical expertise … role in strengthening the organisation's security posture by conducting infrastructure-focused assessments, mentoring junior testers, and influencing remediation strategies. Key Responsibilities Deliver internal and external network and infrastructure penetration tests , including on-premises and cloud-hosted environments Perform testing of Windows & Linux infrastructure, Active Directory, network services, and security appliances Conduct vulnerability exploitation , privilege escalation, and lateral movement … debriefs Contribute to tooling, methodology enhancement, and internal research initiatives Stay up-to-date with emerging vulnerabilities, exploits, and attacker techniques Required Skills & Experience 3-5+ years' professional penetration testing/offensive security experience Strong understanding of enterprise infrastructure, AD security, networking, and protocols Proficiency with tools such as Nmap, Nessus, Metasploit, BloodHound, Burp Suite, Kali/Linux More ❯

Mid/Senior Penetration Tester - Remote - Up to £60k - New Role (REF46) A leading organisation that delivers IT solutions to over 2000 companies in the public and private sectors, requires a skilled and enthusiastic Penetration Tester to join its growing team. Suitable candidates will have the following: Proven history in the delivery of penetration testing More ❯

Mid/Senior Penetration Tester - Remote - Up to £60k - New Role (REF46) A leading organisation that delivers IT solutions to over 2000 companies in the public and private sectors, requires a skilled and enthusiastic Penetration Tester to join its growing team. Suitable candidates will have the following: Proven history in the delivery of penetration testing More ❯

Mid/Senior Penetration Tester - Remote - Up to £60k - New Role (REF46) A leading organisation that delivers IT solutions to over 2000 companies in the public and private sectors, requires a skilled and enthusiastic Penetration Tester to join its growing team. Suitable candidates will have the following: Proven history in the delivery of penetration testing More ❯

Mid/Senior Penetration Tester - Remote - Up to £60k - New Role (REF46) A leading organisation that delivers IT solutions to over 2000 companies in the public and private sectors, requires a skilled and enthusiastic Penetration Tester to join its growing team. Suitable candidates will have the following: Proven history in the delivery of penetration testing More ❯

Mid/Senior Penetration Tester - Remote - Up to £60k - New Role (REF46) A leading organisation that delivers IT solutions to over 2000 companies in the public and private sectors, requires a skilled and enthusiastic Penetration Tester to join its growing team. Suitable candidates will have the following: Proven history in the delivery of penetration testing More ❯

Mid/Senior Penetration Tester - Remote - Up to £60k - New Role (REF46) A leading organisation that delivers IT solutions to over 2000 companies in the public and private sectors, requires a skilled and enthusiastic Penetration Tester to join its growing team. Suitable candidates will have the following: Proven history in the delivery of penetration testing More ❯

As a Senior Penetration Tester, you will focus on securing the Company's applications through best practice development lifecycle controls and perform penetration tests to assess the effectiveness of security measures. Full-time Closes 03/12/2025 The Information Security department deal with the security of closed sourced, open source and proprietary applications. The team … ensure applications are developed and implemented in a secure manner, as well as being responsible for identifying and remediating risks efficiently through penetration testing. Utilising your knowledge of Secure Development Lifecycles and code assessment, you will work with the Software Development teams to understand and mitigate application-based vulnerabilities. This role is based within the wider Information Security department … development and languages. Working knowledge of CI/CD pipelines and security tooling associated with them. Demonstrative experience in using structured methodologies for conducting and reporting on web application penetration testing. What you will be doing Taking a lead role in the project process to ensure that information security aspects are considered up front and throughout the project lifecycle. More ❯

As a Senior Penetration Tester, you will focus on securing the Company's applications through best practice development lifecycle controls and perform penetration tests to assess the effectiveness of security measures. Full-time Closes 03/12/2025 The Information Security department deal with the security of closed sourced, open source and proprietary applications. The team … ensure applications are developed and implemented in a secure manner, as well as being responsible for identifying and remediating risks efficiently through penetration testing. Utilising your knowledge of Secure Development Lifecycles and code assessment, you will work with the Software Development teams to understand and mitigate application-based vulnerabilities. This role is based within the wider Information Security department … development and languages. Working knowledge of CI/CD pipelines and security tooling associated with them. Demonstrative experience in using structured methodologies for conducting and reporting on web application penetration testing. What you will be doing Taking a lead role in the project process to ensure that information security aspects are considered up front and throughout the project lifecycle. More ❯

Manual Penetration Tester Fully Remote We're proud to be working with a renowned MSP in support of their search for an experienced Manual Penetration Tester. Key Responsibilities Carry out hands-on penetration testing across applications, infrastructure, and networks, with a particular focus on web apps and security products Deliver highly technical and effective security engagements … through hands on systematic and innovative testing Lead teams on client engagements as well as working alone Deliver detailed and actionable penetration test reports efficiently Explain complex security issues in a clear, business-focused way to different audiences, from technical development teams to senior non-technical management teams. Required experience Proven history in the delivery of manual penetration More ❯

Manual Penetration Tester Fully Remote We're proud to be working with a renowned MSP in support of their search for an experienced Manual Penetration Tester. Key Responsibilities Carry out hands-on penetration testing across applications, infrastructure, and networks, with a particular focus on web apps and security products Deliver highly technical and effective security engagements … through hands on systematic and innovative testing Lead teams on client engagements as well as working alone Deliver detailed and actionable penetration test reports efficiently Explain complex security issues in a clear, business-focused way to different audiences, from technical development teams to senior non-technical management teams. Required experience Proven history in the delivery of manual penetration More ❯

Manual Penetration Tester Fully Remote We're proud to be working with a renowned MSP in support of their search for an experienced Manual Penetration Tester. Key Responsibilities Carry out hands-on penetration testing across applications, infrastructure, and networks, with a particular focus on web apps and security products Deliver highly technical and effective security engagements … through hands on systematic and innovative testing Lead teams on client engagements as well as working alone Deliver detailed and actionable penetration test reports efficiently Explain complex security issues in a clear, business-focused way to different audiences, from technical development teams to senior non-technical management teams. Required experience Proven history in the delivery of manual penetration More ❯

Manual Penetration Tester Fully Remote We're proud to be working with a renowned MSP in support of their search for an experienced Manual Penetration Tester. Key Responsibilities Carry out hands-on penetration testing across applications, infrastructure, and networks, with a particular focus on web apps and security products Deliver highly technical and effective security engagements … through hands on systematic and innovative testing Lead teams on client engagements as well as working alone Deliver detailed and actionable penetration test reports efficiently Explain complex security issues in a clear, business-focused way to different audiences, from technical development teams to senior non-technical management teams. Required experience Proven history in the delivery of manual penetration More ❯

Manual Penetration Tester Fully Remote We're proud to be working with a renowned MSP in support of their search for an experienced Manual Penetration Tester. Key Responsibilities Carry out hands-on penetration testing across applications, infrastructure, and networks, with a particular focus on web apps and security products Deliver highly technical and effective security engagements … through hands on systematic and innovative testing Lead teams on client engagements as well as working alone Deliver detailed and actionable penetration test reports efficiently Explain complex security issues in a clear, business-focused way to different audiences, from technical development teams to senior non-technical management teams. Required experience Proven history in the delivery of manual penetration More ❯

Manual Penetration Tester Fully Remote We're proud to be working with a renowned MSP in support of their search for an experienced Manual Penetration Tester. Key Responsibilities Carry out hands-on penetration testing across applications, infrastructure, and networks, with a particular focus on web apps and security products Deliver highly technical and effective security engagements … through hands on systematic and innovative testing Lead teams on client engagements as well as working alone Deliver detailed and actionable penetration test reports efficiently Explain complex security issues in a clear, business-focused way to different audiences, from technical development teams to senior non-technical management teams. Required experience Proven history in the delivery of manual penetration More ❯

Position Summary As an Associate Penetration Tester at Claranet, you will able to deliver you own web application tests and through training and partnering, you will have the opportunity to become involved in a full range of testing work from mobile app and infrastructure testing to social engineering and Red Team exercises. Role Mission Claranet’s strategy is … be self-motivated and able to work in an independent manner as well as part of a team Excellent written and oral communications skills Positive, collaborative and enthusiastic Conducting penetration testing work out of normal office hours on occasion Willing to travel to deliver onsite work as required Appetite to shadow, train and develop to improve capabilities into all More ❯

Contract Pen Tester – SC Cleared 🚨 I'm on the search for a INF/APP or CSTM certified consultants to deliver ITHCs and penetration testing. 🔹 £700 p/d (Outside IR35) 🔹 6 months (with extension) 🔹 Manchester & Newcastle (mix of on-site + remote) 🔹 SC clearance required If you’re a seasoned tester with these certifications and strong 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 … their testing outputs. The company have an office in Cheltenham however you are welcome to work where is best for you. Job Details 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 … Skills 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 ❯

secure, innovative solutions across industries. We foster collaboration, inclusion, and continuous growth, with networks supporting diversity, equity, and belonging. What You'll do: Lead and manage threat intelligence-led penetration tests across applications, infrastructure, cloud (AWS/Azure/O365), APIs, and OT Develop advanced test plans, identify critical assets, and deliver detailed, actionable reports for technical and business … team capabilities Contribute to research on emerging threats and attack techniques to strengthen proactive security What You'll Bring: CREST CRT (or higher) certification - essential 5+ years' experience in penetration testing with strong understanding of adversarial tactics and threat intelligence Expertise across network, cryptography, vulnerabilities, and attack vectors Strong communication and reporting skills Experience with Breach Attack Simulation, vulnerability More ❯

systems. This role is perfect for someone who is already deeply involved in the Bug Bounty scene or a seasoned 'old-school hacker' looking to break free from traditional penetration testing. What You'll Do: Identify and Exploit Vulnerabilities: Use your technical prowess to identify and exploit external, web-facing vulnerabilities. Understand how these vulnerabilities occur and how they More ❯