101 to 125 of 194 Penetration Tester Jobs

Social network you want to login/join with: Penetration Tester, Watford, Hertfordshire Client: Network IT Recruitment Limited Location: Watford, Hertfordshire, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 6 Posted: 31.05.2025 Expiry Date: 15.07.2025 Job Description: If you're looking to join an established organisation expanding their penetration testing capabilities, this is … a genuine opportunity for a penetration tester to deliver impactful testing work without being sidetracked by red tape. You'll focus on delivering high-quality assessments and reports, honing your skills across various testing disciplines, with full investment in training and certifications (including those you pursue personally). What you'll be doing Deliver high-quality penetration …/External Infrastructure Web Applications, APIs Hardware & Embedded Software Produce clear, concise, actionable reports for both technical and non-technical audiences. Work independently or collaboratively with a team of penetration testers. Engage with clients and stakeholders to explain findings and remediation steps. What's in it for you? Remote-first culture – work from anywhere in the UK Salary up More ❯

Our client is seeking a Senior Penetration Tester to join their growing security team. This is a unique opportunity to work a genuine 4-day week (no compressed hours) -giving you 79 extra days off a year -while focusing on high-quality, service-led testing and client relationships. This isn't your typical offensive security role. You'll … in both delivery and pre-sales, working closely with clients and internal sales teams to shape secure outcomes-not just find vulnerabilities. Key Responsibilities Deliver web, infrastructure, and cloud penetration testing with a business-focused approach. Act as a technical advisor in pre-sales , helping scope work and educate internal sales teams on testing services. Build strong client relationships … translating technical findings into clear, actionable recommendations. Champion security best practices and support remediation discussions. Mentor junior testers and contribute to continuous service improvement. Requirements CREST Registered Tester or equivalent (e.g., OSCP with CREST equivalency). 4 years' experience in penetration testing, preferably in a mission led environment. Strong communication and report writing skills. Experience working with sales 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 ❯

network you want to login/join with: Are you an offensive security specialist excited about delivering the best service? Join a boutique Cyber Security consultancy focused on the Penetration Testing market. They prioritize quality testing and reports over marketing hype, ensuring clients see real benefits from their testing outputs. The company is based in Cheltenham but offers flexible … working locations. Key Responsibilities: Deliver CHECK penetration testing services. Engage in non-CHECK testing where necessary. Collaborate with the sales team for technical input. Produce high-quality reports for clients. Stay updated on industry trends and attack methods. Conduct testing across INF, APP, Mobile, AD, or Cloud environments. Possess a CHECK equivalency certification. Hold or be eligible to hold … security clearance. Experience with Linux and Windows OS. Proficiency with common penetration testing tools. Knowledge of Cloud services like Azure or AWS (preferred). Ability to script or code in Bash, Python, etc. Understanding of cybersecurity standards such as ISO27001, PCI-DSS, or CIS. This role offers growth opportunities and the chance to work with interesting clients in a More ❯

Red Team Penetration Tester - Up to £ 7 0,000 (Permanent, Remote with occasional travel to client sites) We're seeking an experienced Red Team Operator to simulate sophisticated adversaries against some of the UK's most critical infrastructures. This is a hands-on role involving assumed breach, phishing, custom tooling, Active Directory abuse, and advanced detection evasion. Key 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 ❯

employees are remote workers, but that doesn't stop us keeping in touch and maintaining a strong positive culture amongst our whole team. About the role The role of Penetration Tester is responsible for identifying vulnerabilities in Youth4Youth’s systems, applications, and infrastructure. This involves simulating cyberattacks, conducting security assessments, documenting findings, and recommending mitigations. The role requires … communication with other Youth4Youth team members, developing test strategies for penetration testing, executing tests, analysing results, and creating detailed reports on security weaknesses and solutions. Responsibilities Perform security-focused testing of Youth4Youth’s applications, including vulnerability assessments and penetration testing. Experience with web and chat-based applications. Collaborate with developers to validate fixes and retest vulnerabilities. Regularly liaise … exploited and remediation steps. Skills Excellent problem-solving and communication skills to engage with team members. Understanding of OWASP Top 10 vulnerabilities and secure web application development. Experience with penetration testing tools such as Burp Suite, OWASP ZAP and Nikto. Experience with vulnerability reporting, including risk assessment and remediation guidance. Awareness of data protection principles, GDPR and ethical hacking More ❯

Hou je ervan om kwetsbaarheden te ontdekken? Wil je hierover graag adviseren? Voer geavanceerde securitytesten uit voor onze opdrachtgevers met behulp van nieuwste tool en technieken. Als Security Tester (Pentester) ben jij degene die samen met het team ervoor zorgt dat de digitale systemen van onze opdrachtgevers, zowel IT- als OT-omgevingen, optimaal beveiligd zijn. Samen bespreken we de More ❯

will have the ability to take initiative, learn quickly on the job and deal with issues as they arise in a high-pressure environment. You will be an enthusiastic tester with a few years of experience under your belt. You’ll be passionate about, and proud of, working in the security industry, and be constantly researching the latest vulnerabilities … with both government and private sector clients. You will be part of a talented and collaborative international team who are positioning Resillion as an industry leader in delivery of penetration testing services. You will contribute to our thought leadership on various social media platforms and industry events. You will be expected to assist in enforcing the highest standards of 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 ❯

Principal Penetration Tester – UK remote - £70,000 - £90,000 Our client, a leading cyber security consultancy, is looking for a Principal Penetration Tester to lead and execute complex security assessments and play a key strategic role, driving high-impact penetration testing, red teaming, and security advisory services for clients across various industries. Main Responsibilities: Lead … advanced penetration testing engagements across networks, applications, cloud, and mobile environments. Oversee red teaming exercises, delivering real-world adversary simulation insights. Provide expert security guidance, working with stakeholders to enhance security posture. Mentor and develop junior testers, fostering a high-performance security team. Stay ahead of emerging threats, exploits, and attack methodologies to improve testing capabilities. To be considered … Extensive experience in penetration testing, red teaming, and security consulting. Strong knowledge of attack techniques, threat modelling, and exploit development. Certifications such as CREST CRT/CCS, OSCP, OSEP, or CISSP are highly desirable. Proven ability to lead and deliver high-impact security engagements. More ❯

Penetration Tester – UK remote - £30,000 - £40,000 + Benefits + Bonus Our client is looking for a Penetration Tester to join their established Offensive Security function. This role involves conducting and delivering high-quality security assessments across web applications, infrastructure, mobile, cloud, and networks. Our client is looking for someone who has a wide understanding … of different types of security testing, and in-depth threat-intelligence knowledge. Main Responsibilities: Perform penetration tests on web applications, networks, APIs, cloud environments, and mobile platforms. Assist in red team exercises, social engineering assessments, and security awareness initiatives. Conduct vulnerability assessments, exploit security flaws, and document findings with actionable remediation steps. Simulate real-world attack scenarios to evaluate … custom scripts, tools, and exploits to test system defences. Work closely with security teams to remediate identified vulnerabilities. To be considered, you should have: 1+ years in a professional Penetration Testing role. Strong interest of OWASP Top 10, MITRE ATT&CK Framework, and common exploit techniques. Desire and interest to build a career in the Offensive Security space More ❯

Social network you want to login/join with: Principal Penetration Tester, peterborough col-narrow-left Client: Opus Recruitment Solutions Location: peterborough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: Our client, a leading cyber security consultancy, is looking for a … Principal Penetration Tester to lead and execute complex security assessments and play a key strategic role, driving high-impact penetration testing, red teaming, and security advisory services for clients across various industries. Main Responsibilities: Lead advanced penetration testing engagements across networks, applications, cloud, and mobile environments. Oversee red teaming exercises, delivering real-world adversary simulation insights. … and develop junior testers, fostering a high-performance security team. Stay ahead of emerging threats, exploits, and attack methodologies to improve testing capabilities. To be considered: Extensive experience in penetration testing, red teaming, and security consulting. Strong knowledge of attack techniques, threat modelling, and exploit development. Certifications such as CREST CRT/CCS, OSCP, OSEP, or CISSP are highly More ❯

Social network you want to login/join with: Penetration Tester (Junior), High Wycombe Client: Addition+ Location: High Wycombe, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 12 Posted: 04.06.2025 Expiry Date: 19.07.2025 Job Description: We are currently recruiting for a dynamic UK technology provider for the role of Penetration Tester . … due to the nature of clients. Full UK Driving License & Access to a vehicle are essential. Experience working in the public sector. Minimum of 2+ years of experience in Penetration Testing. Any of the following Penetration Testing Certifications: CompTIA, OSWE, CRTO, CPT, LPT, CEPT, CCPT, CPENT, CRPT, etc. Strong background and understanding of cybersecurity, with a knowledge of … penetration testing frameworks and methodologies. Strong client-facing skills, with the ability to present and discuss findings remotely or in person. Offensive Security Certified Professional (OSCP) certification is highly preferred. How you'll be rewarded Mentorship from Senior Leaders across the business #J-18808-Ljbffr More ❯

Social network you want to login/join with: 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 … 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 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 - work from anywhere in the UK Salary up to £60,000, depending on experience. More ❯

Social network you want to login/join with: Penetration Tester, crawley, west sussex col-narrow-left Client: Network IT Recruitment Limited Location: crawley, west sussex, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: 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 adjacent tasks or red tape! If you … 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 Produce clear, concise and actionable reports More ❯

required: Yes col-narrow-right Job Views: 6 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: Our client, a leading cyber security consultancy, is looking for a Principal Penetration Tester to lead and execute complex security assessments and play a key strategic role, driving high-impact penetration testing, red teaming, and security advisory services for clients … across various industries. Main Responsibilities: Lead advanced penetration testing engagements across networks, applications, cloud, and mobile environments. Oversee red teaming exercises, delivering real-world adversary simulation insights. Provide expert security guidance, working with stakeholders to enhance security posture. Mentor and develop junior testers, fostering a high-performance security team. Stay ahead of emerging threats, exploits, and attack methodologies to … improve testing capabilities. To be considered: Extensive experience in penetration testing, red teaming, and security consulting. Strong knowledge of attack techniques, threat modelling, and exploit development. Certifications such as CREST CRT/CCS, OSCP, OSEP, or CISSP are highly desirable. Proven ability to lead and deliver high-impact security engagements. #J-18808-Ljbffr 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 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 - work from anywhere in the UK Salary up to £60,000, depending on experience. More ❯

Role: Penetration Tester Location: London Salary: £45k - £60k Work Pattern: On-Site For 3 Months and Then 3 Days On-Site/2 Days WFH Skillset: OWASP, Cloud Platforms, SSL/TLS Summary An elite security consultancy has a brand new role for an experienced Penetration Tester to join their team. The role is being offered … Cloud Platforms OSI Model Benefits Annual Training and Development Plans Regular Performance Reviews Industry Events and Conferences Hybrid Working After Probation Period Apply Now! If you are an experienced Penetration Tester and you are looking to progress with an organisation alongside ambitious and driven professionals, then look no further - this is the role for you! Referrals: If this … Email: to recommend someone for this role. Interviews for this role will be held imminently. To be considered, please send your CV to me now to avoid disappointment. Role: Penetration Tester Location: London Salary: £45k - £60k Work Pattern: On-Site For 3 Months and Then 3 Days On-Site/2 Days WFH Skillset: OWASP, Cloud Platforms, SSL More ❯

Direct message the job poster from iFindTech Ltd Work Across Internal Security, Compliance & Client Engagements A fast-growing security-focused business is looking for a Penetration Tester to join their expanding team. This is a hands-on, cross-functional role where you'll support internal security maturity, contribute to client-facing consultancy projects, and work directly with security … purple team exercises alongside the SOC to simulate attack scenarios and improve detection Run internal vulnerability assessments and pen tests to support compliance and readiness for audits Deliver external penetration testing services — from scoping and testing to risk analysis and reporting What We're Looking For: Practical experience in penetration testing across networks, applications, and cloud environments Solid … type Full-time Job function Job function Information Technology Industries Computer and Network Security Referrals increase your chances of interviewing at iFindTech Ltd by 2x Get notified about new Penetration Tester jobs in London Area, United Kingdom . Product Security Engineer (University Grad) London, England, United Kingdom 1 week ago Woking, England, United Kingdom 1 week ago London More ❯

Social network you want to login/join with: Penetration Tester (Junior), west london col-narrow-left Client: Addition+ Location: west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 9 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: We are currently recruiting for a dynamic UK technology provider for … the role of Penetration Tester. This is a fantastic opportunity to join a business known for its cutting-edge connectivity, cloud, and communications solutions. Role Overview *CANDIDATES MUST BE BASED IN THE UK* Location: Remote with ad hoc travel to customer sites. What you'll be doing: Conduct a variety of IT security engagements and ensure client deliverables meet … due to the nature of clients. Full UK Driving License & Access to a vehicle are essential. Experience working in the public sector. Minimum of 2+ years of experience in Penetration Testing. Any of the following Penetration Testing Certifications: CompTIA, OSWE, CRTO, CPT, LPT, CEPT, CCPT, CPENT, CRPT, ect. Strong background and understanding of cybersecurity, with a knowledge of More ❯

Pattern: On-Site For 3 Months and Then 3 Days On-Site/2 Days WFH Summary An elite security consultancy has a brand new role for an experienced Penetration Tester to join their team. The role is being offered on a permanent basis from their central London office, close to major transport links. You will be tasked … Previous Testing Experience OWASP Web Applications Testing Methodology OSI Model Annual Training and Development Plans Regular Performance Reviews Industry Events and Conferences Apply Now! If you are an experienced Penetration Tester and you are looking to progress with an organisation alongside ambitious and driven professionals, then look no further - this is the role for you! Referrals: Interviews for More ❯

Pattern: On-Site For 3 Months and Then 3 Days On-Site/2 Days WFH Summary An elite security consultancy has a brand new role for an experienced Penetration Tester to join their team. The role is being offered on a permanent basis from their central London office, close to major transport links. You will be tasked … Web Applications Testing Methodology SSL/TLS , HTTP OSI Model Annual Training and Development Plans Regular Performance Reviews Industry Events and Conferences Apply Now! If you are an experienced Penetration Tester and you are looking to progress with an organisation alongside ambitious and driven professionals, then look no further – this is the role for you! Referrals: If this More ❯

We’re a tight-knit team of UK-based cyber security professionals delivering high-quality, consultative penetration testing to companies of all sizes, from scaling startups to established names. We focus on real risk, clear communication, and delivering value that actually helps clients stay secure. Right now, we’re growing, and we’re looking for someone technical, capable, and … collaborative to join us. You won’t be just another tester churning through engagements. We’re not about conveyor belt consulting. We’re building a delivery team with autonomy, purpose, and pride in the craft, and this is your chance to help shape that from the ground up. What You’ll Be Doing Delivering penetration testing engagements, mostly More ❯