1 to 25 of 43 Permanent Penetration Tester Jobs in England

Penetration Tester – UK (Hybrid/Remote) Salary: Competitive + Benefits We’re looking for an experienced Penetration Tester to join our growing cybersecurity team. You’ll conduct a wide range of security assessments — from web and network testing to red teaming and social engineering — helping clients strengthen their defenses against real-world threats. What You’ll … Do Perform penetration tests across web, network, mobile, and API environments. Identify, validate, and exploit vulnerabilities to demonstrate real-world risk. Produce clear, actionable reports and present findings to clients. Maintain tools, follow OWASP/PTES/NIST methodologies, and stay current with emerging threats. Collaborate with clients to scope tests and provide security guidance. What You’ll Bring … CREST Registered Penetration Tester (CRT) certification required. Additional certs (OSCP, GPEN, CEH) a plus. 3–5 years’ experience in penetration testing or offensive security. Strong communication skills and attention to detail. Bachelor’s degree in Cybersecurity, Computer Science, or related field. More ❯

Infrastructure Penetration Tester | CHECK | CREST | CSTL/CTL | Networking | Config Reviews | API Testing | Contract Pen Testing | Infrastructure | External & Internal Networks | SR2 is partnered with a leading security consultancy on a significant multi-phase testing programme, and we’re looking for an experienced Infrastructure Penetration Tester to join the team. This role will focus on delivering hands … on penetration testing across external and internal networks, reviewing system configurations, and identifying vulnerabilities within critical infrastructure. You’ll work alongside a small team of experienced testers to support a major client undergoing large-scale change, ensuring their environment is secure and compliant. Key Responsibilities: Conduct comprehensive external and internal infrastructure penetration tests , starting with perimeter systems and … lead and wider team across a six-phase testing programme Engage directly with stakeholders and SMEs to ensure smooth onboarding and delivery Skills & Experience Required: Proven background in infrastructure penetration testing within complex network environments CREST certification or CHECK Team Member/CHECK Team Lead (CTM/CTL) status advantageous Strong understanding of networking, configuration management, and common attack More ❯

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 ❯

Senior Infrastructure Penetration Tester Location: London flexible hybrid Salary: £70,000 – £80,000 We’re hiring on behalf of our client, a growing Penetration Testing Consultancy, for a Senior Infrastructure Penetration Tester to join their elite Testing team. This role is ideal for someone who thrives on deep technical challenges, values autonomy, and enjoys working … in a fast paced and growing environment. What You’ll Be Doing Leading infrastructure penetration tests across complex environments (on prem, cloud, hybrid). Identifying and exploiting vulnerabilities in networks, systems, and configurations. Developing custom tooling and scripts to support testing and reporting. Conducting technical research and publishing internal findings or blogs. Supporting threat modelling and contributing to detection … engineering efforts. Working closely with clients to provide solutions and deliver elite technical assessments. What You Bring Strong hands on experience in infrastructure penetration testing. Ability to work independently and think creatively. Strong consultative experience, ability to work closely with various clients and discuss on both technical and non technical levels. More ❯

Senior Infrastructure Penetration Tester Location: London flexible hybrid Salary: £70,000 – £80,000 We’re hiring on behalf of our client, a growing Penetration Testing Consultancy, for a Senior Infrastructure Penetration Tester to join their elite Testing team. This role is ideal for someone who thrives on deep technical challenges, values autonomy, and enjoys working … in a fast paced and growing environment. What You’ll Be Doing Leading infrastructure penetration tests across complex environments (on prem, cloud, hybrid). Identifying and exploiting vulnerabilities in networks, systems, and configurations. Developing custom tooling and scripts to support testing and reporting. Conducting technical research and publishing internal findings or blogs. Supporting threat modelling and contributing to detection … engineering efforts. Working closely with clients to provide solutions and deliver elite technical assessments. What You Bring Strong hands on experience in infrastructure penetration testing. Ability to work independently and think creatively. Strong consultative experience, ability to work closely with various clients and discuss on both technical and non technical levels. 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 ❯

Introduction Wipro is looking for a Penetration tester to join our QET team. As the Penetration tester, you will be responsible for coordinating and executing end-to-end penetration testing (Pentest) projects, working closely with a dynamic team to deliver high-quality security assessments and documentation. About Wipro Wipro is an exciting organization to work … salary, a generous benefits package, training and development opportunities, up to 6% employer contributory pension, and a quarterly bonus. Your Responsibilities Coordinate with the team to scope and execute penetration tests end-to-end, producing clear documentation. Apply working knowledge of Jira, ServiceNow (SNOW), and Confluence to manage and track security projects. Operate effectively in a regulatory compliance environment. More ❯

Penetration Tester Permanent – up to £85k per annum London based – hybrid working – 2-3 days office based Must have CHECK CTL and certified Role Overview: We are seeking a highly skilled and experienced Offensive Security Consultant with a strong focus understanding on threat intelligence and attack methods. The ideal candidate will be responsible for managing and conducting advanced … penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across a variety of environments, including OT, IT, web applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial approaches, excellent communication skills, and the ability to provide strategic and actionable recommendations to significantly enhance our clients' security posture. Responsibilities: Lead and manage the full … lifecycle of complex penetration testing engagements, applying a strong threat intelligence-led approach. Execute advanced penetration tests across a broad range of environments (applications, infrastructure, web, APIs, O365, Azure, AWS, OT), directly applying your knowledge of current threat landscapes and attacker TTPs. Develop and maintain sophisticated test plans, execution plans, and targeted use cases directly informed by in More ❯

Penetration Tester Permanent – up to £85k per annum London based – hybrid working – 2-3 days office based Must have CHECK CTL and certified Role Overview: We are seeking a highly skilled and experienced Offensive Security Consultant with a strong focus understanding on threat intelligence and attack methods. The ideal candidate will be responsible for managing and conducting advanced … penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across a variety of environments, including OT, IT, web applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial approaches, excellent communication skills, and the ability to provide strategic and actionable recommendations to significantly enhance our clients' security posture. Responsibilities: Lead and manage the full … lifecycle of complex penetration testing engagements, applying a strong threat intelligence-led approach. Execute advanced penetration tests across a broad range of environments (applications, infrastructure, web, APIs, O365, Azure, AWS, OT), directly applying your knowledge of current threat landscapes and attacker TTPs. Develop and maintain sophisticated test plans, execution plans, and targeted use cases directly informed by in 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 ❯

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 ❯

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 ❯