Explore exciting penetration tester jobs that challenge your 256 Penetration Tester jobs in the United Kingdom
Senior Penetration Tester - Ethical Hacking
EH1 2AA Edinburgh, Scotland
£60000 Annually
WhatJobs
Posted 13 days ago
Job Viewed
Job Description
Our client is a leading cybersecurity firm seeking a highly skilled Senior Penetration Tester to bolster its offensive security team. This is a critical role focused on identifying vulnerabilities and weaknesses in client systems through simulated cyberattacks. The ideal candidate will possess a deep understanding of security principles and a passion for ethical hacking. This role is fully remote, allowing you to contribute to global security initiatives from your home office.
Responsibilities:
Responsibilities:
- Conduct comprehensive penetration tests against web applications, networks, cloud environments, and mobile applications.
- Identify, exploit, and document security vulnerabilities using a variety of tools and techniques.
- Perform vulnerability assessments and provide detailed reports on findings, including risk analysis and remediation recommendations.
- Develop and maintain testing methodologies and procedures.
- Collaborate with development and IT teams to ensure timely remediation of identified vulnerabilities.
- Stay abreast of the latest threats, vulnerabilities, and penetration testing techniques.
- Communicate complex technical findings clearly and concisely to both technical and non-technical audiences.
- Contribute to the development of security tools and scripts.
- Mentor junior members of the security team.
- Assist in incident response activities when necessary.
- Ensure compliance with industry standards and best practices.
- Minimum 5 years of experience in penetration testing or ethical hacking.
- Strong understanding of network protocols, operating systems, and web application security.
- Proficiency with various penetration testing tools (e.g., Metasploit, Burp Suite, Nmap, Wireshark).
- Experience with scripting languages (e.g., Python, PowerShell) is highly desirable.
- Relevant security certifications such as OSCP, CEH, CISSP, or GIAC.
- Excellent analytical and problem-solving skills.
- Strong written and verbal communication skills.
- Ability to work independently and as part of a remote team.
- Bachelor's degree in Computer Science, Information Security, or a related field, or equivalent practical experience.
This advertiser has chosen not to accept applicants from your region.
0
Penetration Tester
London, London
£55000 - £60000 Annually
Context Recruitment
Posted 6 days ago
Job Viewed
Job Description
Penetration Tester - Leading Managed Services Provider
Remote based.
Salary: Up to 60k, depending on experience.
A leading Managed Services Provider are seeking to recruit a technically skilled Cyber Security / Penetration Tester. This is a fantastic opportunity to join a well-established organisation delivering high-quality security services to enterprise clients across the UK.
As a Penetration Tester, you will be responsible for conducting manual penetration testing across both application and infrastructure layers. You will contribute to secure build reviews, advise on secure design practices, and provide technical insight to both internal teams and clients.
Key Responsibilities
- Perform manual penetration testing of web applications and infrastructure
- Conduct security build reviews across common operating systems (Windows, Redhat, Solaris)
- Analyse and harden database environments in line with security best practices
- Review and advise on web server design and implementation
- Produce clear and concise technical reports for a range of stakeholders
- Collaborate with internal teams and clients to support remediation and secure development
Required Skills and Experience
- Proven experience in manual penetration testing (application and infrastructure)
- Strong understanding of TCP/IP and core networking principles
- Extensive experience testing web-based applications
- Familiarity with secure configuration and build reviews across major operating systems
- Comfortable programming in one or more languages (e.g. Python, Java, C#, Bash)
- Deep knowledge of database security and hardening techniques
- Solid technical understanding of web application architecture and server implementation
- Ideally you'll be working towards CREST Certified Web Application Tester or CREST Certified Infrastructure Tester or equivalent.
If you are a technically driven Penetration Tester seeking a new challenge within a respected Managed Services Provider, we would be pleased to hear from you.
Remote based.
Paying up to 60k, depending on experience.
Must be eligible for SC Clearance.
This advertiser has chosen not to accept applicants from your region.
1
Penetration Tester
Berkshire, South East
£500 - £525 Daily
Investigo
Posted 6 days ago
Job Viewed
Job Description
Penetration Tester (SC Cleared)
Location: Wokingham - Hybrid working (50/50 split)
Contract Duration: Until 26/12/2025 initially - with a view to extend
Daily Rate: 525/day Inside IR35 - Candidates will need to work through an Umbrella Company
Clearance Required: Active SC Clearance
We are looking for an experienced Penetration Tester to join a cybersecurity team. This role offers the opportunity to work on a hybrid basis, engaging in high-impact security assessments across various platforms and environments.
Key Responsibilities:
- Conduct manual and automated penetration tests on web applications, networks, APIs, and mobile platforms
- Identify, exploit, and document vulnerabilities, delivering detailed risk assessments
- Design and execute red team exercises and threat simulations
- Work closely with development and infrastructure teams to remediate findings
- Produce comprehensive reports highlighting risks, impacts, and mitigation strategies
- Stay up to date on emerging threats, tools, and techniques
- Support internal security awareness training and initiatives
- Contribute to the development of security policies and best practices
Required Skills & Experience:
- Strong background in penetration testing, ethical hacking, or red teaming
- Deep knowledge of OWASP Top 10, MITRE ATT&CK, and CVSS scoring systems
- Proficiency with tools such as Burp Suite, Metasploit, Nmap, Wireshark, and Kali Linux
- Scripting experience with Python, Bash, or PowerShell
- Understanding of network protocols, operating systems, and cloud platforms
- Certifications such as OSCP , CEH , GPEN , or CRTP (highly desirable)
- Excellent analytical, communication, and reporting skills
If you are interested and looking for your next role, please apply with a copy of your CV
This advertiser has chosen not to accept applicants from your region.
2
Penetration Tester
Berkshire, South East
£400 - £415 Daily
Damia Group Ltd
Posted 6 days ago
Job Viewed
Job Description
Penetration Tester - Hybrid (Wokingham) - Circa 400 per day inside ir35 - 2/3 months+
All applicants must hold an active SC clearance.
My client is a global leading IT consultancy. They are on the hunt for an SC cleared PEN Tester to join them on an assigment until the end of the year.
Key Responsibilities
- Conduct manual and automated penetration tests on web applications, networks, APIs, and mobile platforms
- Identify, exploit, and document security vulnerabilities with detailed risk assessment
- Develop and execute red team exercises and threat simulations
- Collaborate with development and infrastructure teams to remediate findings
- Prepare comprehensive reports outlining findings, impact, and mitigation strategies
- Stay current with latest attack vectors, tools, and security trends
- Assist in security awareness training and internal education efforts
- Contribute to security policies and best practices development
Required Skills & Qualifications
- Proven experience in penetration testing, ethical hacking, or red teaming
- Strong understanding of OWASP Top 10, MITRE ATT&CK, and CVSS scoring
- Proficiency with tools like Burp Suite, Metasploit, Nmap, Wireshark, Kali Linux
- Familiarity with scripting languages (Python, Bash, PowerShell)
- Knowledge of network protocols, operating systems, and cloud environments
- Relevant certifications (e.g., OSCP, CEH, GPEN, CRTP) are highly desirable
- Excellent analytical, communication, and report-writing skills"
Penetration Tester - Hybrid (Wokingham) - Circa 400 per day inside ir35 - 2/3 months+
Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website.
Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.
Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.
This advertiser has chosen not to accept applicants from your region.
3
Penetration Tester
Manchester, North West
Cognify Global
Posted today
Job Viewed
Job Description
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 AWS/Kubernetes skills, this one’s for you. Referrals appreciated!
This advertiser has chosen not to accept applicants from your region.
4
Penetration Tester
London, London
AGS
Posted today
Job Viewed
Job Description
My client, HQ in London, is a global Cybersecurity advisory firm. They are hiring a Senior Pentester in London (hybrid, 2x day a week in London offices). Responsibilities: Lead and deliver penetration tests across various industries, including infrastructure, technology, healthcare, financial services, and retail. Engage directly with clients, building credibility and strong professional relationships. Oversee end-to-end testing, from scoping and planning to full-scale execution. Operate independently and collaboratively with other senior and junior operators. Participate in advanced Red Team exercises, remaining undetected by XDR/IDS/IPS/EDR systems. Conduct physical security assessments, including covert access operations. Qualifications & Skills: 5 - 10 years of experience in hands-on penetration testing / red teaming / Offensive Security operations with consulting / client-facing experience. Experience as a CHECK Team Lead. Proficiency in scripting and programming languages such as Python, Ruby, C#, etc. in source code review or automation experience. Desirable: Relevant certifications like OSCP, OSWE, GCPN and others are a great plus. Experience running end-to-end client engagements. Project management skills. Security clearance (SC/DV) is a great plus but not a must. Operational Technology (OT) experience.
This advertiser has chosen not to accept applicants from your region.
5
Penetration Tester
Digital Waffle
Posted today
Job Viewed
Job Description
Job Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid / Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We’re looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You’ll conduct network, web, and application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing techniques. Requirements UK National (security clearance eligibility required). 1–3 years’ experience in penetration testing or offensive security. CHECK Team Member status (or eligible within 6 months). Strong technical understanding of attack methods, tools, and frameworks. Excellent communication and reporting skills. Desirable CREST CRT, OSCP, or similar certifications. Experience with government or regulated environments.
This advertiser has chosen not to accept applicants from your region.
Be The First To Know
About the latest Penetration tester Jobs in United Kingdom !
6
Penetration Tester
Bristol, South West
Experis
Posted today
Job Viewed
Job Description
We are currently recruiting for a growing team of Penetration Testers with offensive cyber security and red teaming experience . Ideal candidates will have at least 2 years’ experience in offensive pen testing roles. REQUIRED – 5 years living in the UK for security checks The role is remote/hybrid and includes travel to client’s locations performing comprehensive, advanced pen testing including: Conduct thorough penetration tests to identify vulnerabilities in systems, networks and applications Develop and execute exploit scenarios to simulate real-world cyber attacks Provide detailed reports Collaborate with cross functional teams to implement security best practices Stay up to date on the latest security trends , tools, techniques to enhance testing methodologies and procedures. Other responsibilities within the team include security assessments, risk analysis, incident response, research, compliance, and documentation. Desirable Qualifications include CHECK team member, OSCP and CREST . However, if you have some at least 1 of these and are working towards the others your application will still be of interest. A degree in computer science or related subject required. Fully SC clearance is an advantage, and full security checks will be completed in the role.
This advertiser has chosen not to accept applicants from your region.
7
Penetration Tester
Reading, South East
Searchability NS&D
Posted today
Job Viewed
Job Description
Penetration Tester – Cyber Security Contract until December 2025 (extension likely) Hybrid working, 50/50 split between home and site in Berkshire Active SC clearance required ABOUT THE CLIENT: Our client is a leading organisation within the cyber and defence technology sector, delivering secure digital solutions to UK government and critical national infrastructure programmes. They are expanding their cyber capability and are seeking an experienced Penetration Tester to join the team on a long-term contract, supporting a range of high-impact security projects. THE PENETRATION TESTER ROLE: As a Penetration Tester, you will perform manual and automated testing across web applications, networks, APIs, and mobile platforms. You’ll identify and document vulnerabilities, support red team operations, and collaborate with development and infrastructure teams to ensure effective remediation and security improvements. Key responsibilities include: Conducting penetration tests and vulnerability assessments across multiple environments Performing red team and threat simulation exercises Producing detailed reports outlining findings, risks, and mitigation strategies Staying current with emerging attack vectors, tools, and exploits Contributing to internal security awareness and best practice initiatives PENETRATION TESTER ESSENTIAL SKILLS: Proven experience in penetration testing, ethical hacking, or red teaming Strong understanding of OWASP Top 10, MITRE ATT&CK, and CVSS scoring Skilled in tools such as Burp Suite, Metasploit, Nmap, Wireshark, Kali Linux Familiarity with scripting languages (Python, Bash, PowerShell) Knowledge of network protocols, operating systems, and cloud security principles Relevant certifications (OSCP, CEH, GPEN, CRTP) highly desirable Excellent analytical, communication, and report-writing skills Must hold active SC clearance TO BE CONSIDERED: Please either apply through this advert or email me directly at . For further information, please call me on . By applying for this role, you give express consent for us to process and submit (subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS: Penetration Tester, Ethical Hacker, Red Team, Cyber Security, OWASP, MITRE ATT&CK, Vulnerability Assessment, OSCP, GPEN, CEH, CRTP, SC Cleared, NSD
This advertiser has chosen not to accept applicants from your region.
8
Penetration Tester
London, London
Accenture
Posted today
Job Viewed
Job Description
Job Description: Penetration Tester Role Location: Any UK Salary: Competitive (based on experience) Level: Accenture will be hiring at Specialist Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history (typically including no periods of 30 consecutive days or more spent outside of the UK) at the point of application. Applicants must be UK nationals. The above information relates to a specific client requirement This role requires CHECK team member/ CTM qualification. Our Cyber Practice is a fast-growing community of industry leading experts. The practice covers Assurance, Compliance, Security Operations (SecOps), Offensive Security and Security Research. It is critical that the relevance and quality of the services that we provide is maintained and augmented and that the team members have every opportunity to grow and learn with the organisation. Job Description This is a highly rewarding and hands on role with exposure across both traditional and groundbreaking enterprise IT as well as custom operational technology systems. Your work will see you lead and find a solution to customer problems in an agile, innovative and team centric manner. We are looking for experience in the following skills: · CHECK Team Member status - will need to hold Check Team member exam · Broad understanding of various penetration specialities from infrastructure to applications and cloud testing · Demonstrable ability in deriving security requirements from functional objectives with limited knowledge of the underlying solution and customer/team direction Communicate effectively verbally and in writing, demonstrated through: · Effectively explain complex technical solutions to a non-technical audience · Writing meaningfully to deliver clear information, and guidance · Giving impactful presentations, articulating clearly key points Demonstrate critical thinking by: · Analysing and evaluating information · Using information gathered to present solutions and reach decisions Work in partnership with others to: · Effectively manage both internal and external stakeholders to ensure synergy · Collaborate meaningfully with all parties to ensure outcomes are reached effectively What’s in it for you At Accenture in addition to a competitive basic salary, you will also have an extensive benefits package which includes 25 days’ vacation per year, private medical insurance, car allowance (paid as cash), Bonus scheme, and 3 extra days leave per year for charitable work of your choice! Flexibility and mobility are required to deliver this role as there may be requirements to spend time onsite with our clients and partners to enable delivery of the first-class services we are known for. About Accenture Accenture is a leading global professional services company that helps the world’s leading organizations build their digital core, optimize their operations, accelerate revenue growth and enhance services—creating tangible value at speed and scale. We are a talent- and innovation-led company with 774,000 people serving clients in more than 120 countries. Technology is at the core of change today, and we are one of the world’s leaders in helping drive that change, with strong ecosystem relationships. We combine our strength in technology and leadership in cloud, data and AI with unmatched industry experience, functional expertise and global delivery capability. Our broad range of services, solutions and assets across Strategy & Consulting, Technology, Operations, Industry X and Song, together with our culture of shared success and commitment to creating 360° value, enable us to help our clients reinvent and build trusted, lasting relationships. We measure our success by the 360° value we create for our clients, each other, our shareholders, partners and communities. Visit us at Accenture provides a broad range of services in strategy and consulting, interactive, technology and operations, with digital capabilities across all these services. With our thought leadership and culture of innovation, we apply industry expertise, diverse skill sets and next-generation technology to each business challenge. We believe in inclusion and diversity and supporting the whole person. Our core values comprise of Stewardship, Best People, Client Value Creation, One Global Network, Respect for the Individual and Integrity. Year after year, Accenture is recognized worldwide not just for business performance but for inclusion and diversity too. “Across the globe, one thing is universally true of the people of Accenture: We care deeply about what we do and the impact we have with our clients and with the communities in which we work and live. It is personal to all of us.” – Julie Sweet, Accenture CEO Equal Employment Opportunity Statement We believe that no one should be discriminated against because of their differences. All employment decisions shall be made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, military veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by applicable law. Our rich diversity makes us more innovative, more competitive, and more creative, which helps us better serve our clients and our communities.
This advertiser has chosen not to accept applicants from your region.
9