9 Penetration Tester jobs in the United Kingdom
Senior Penetration Tester
Posted 11 days ago
Job Viewed
Job Description
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 a strong background in adversary simulation and technical quality assurance to join a high-impact project within the UK cyber security space. This role is ideal for someone who's not only delivered high-end red team engagements but has also overseen the work of others and provided expert-level guidance.
You may have worked as a CHECK Team Leader, led adversary simulation teams, or assessed others for recognised exam bodies such as CREST or OSCP. This is a contract position working remotely, with occasional meetings or workshops as required.
The role is a 12 month initial contract (inside IR35) & can be mostly remote with 1 day a week on-site in either Cheltenham or London.
Main Responsibilities:
Reviewing and sampling technical reports to ensure they meet internal and external quality standards.
Coaching and mentoring team 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 recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable.
Got your attention?
If you believe that you have the skills and experience for the role - then please get in touch. We also offer a referral scheme for any candidates whose details are passed to us that we successfully place. If you have any further questions then please contact Ryan Harris at MERITUS Talent.
Senior Penetration Tester
Posted 11 days ago
Job Viewed
Job Description
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 a strong background in adversary simulation and technical quality assurance to join a high-impact project within the UK cyber security space. This role is ideal for someone who's not only delivered high-end red team engagements but has also overseen the work of others and provided expert-level guidance.
You may have worked as a CHECK Team Leader, led adversary simulation teams, or assessed others for recognised exam bodies such as CREST or OSCP. This is a contract position working remotely, with occasional meetings or workshops as required.
The role is a 12 month initial contract (inside IR35) & can be mostly remote with 1 day a week on-site in either Cheltenham or London.
Main Responsibilities:
Reviewing and sampling technical reports to ensure they meet internal and external quality standards.
Coaching and mentoring team 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 recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable.
Got your attention?
If you believe that you have the skills and experience for the role - then please get in touch. We also offer a referral scheme for any candidates whose details are passed to us that we successfully place. If you have any further questions then please contact Ryan Harris at MERITUS Talent.
Senior Penetration Tester
Posted 25 days ago
Job Viewed
Job Description
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 a strong background in adversary simulation and technical quality assurance to join a high-impact project within the UK cyber security space. This role is ideal for someone who's not only delivered high-end red team engagements but has also overseen the work of others and provided expert-level guidance.
You may have worked as a CHECK Team Leader, led adversary simulation teams, or assessed others for recognised exam bodies such as CREST or OSCP. This is a contract position working remotely, with occasional meetings or workshops as required.
The role is a 12 month initial contract (inside IR35) & can be mostly remote with 1 day a week on-site in either Cheltenham or London.
Main Responsibilities:
Reviewing and sampling technical reports to ensure they meet internal and external quality standards.
Coaching and mentoring team 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 recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable.
Got your attention?
If you believe that you have the skills and experience for the role - then please get in touch. We also offer a referral scheme for any candidates whose details are passed to us that we successfully place. If you have any further questions then please contact Ryan Harris at MERITUS Talent.
Senior Penetration Tester
Posted 25 days ago
Job Viewed
Job Description
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 a strong background in adversary simulation and technical quality assurance to join a high-impact project within the UK cyber security space. This role is ideal for someone who's not only delivered high-end red team engagements but has also overseen the work of others and provided expert-level guidance.
You may have worked as a CHECK Team Leader, led adversary simulation teams, or assessed others for recognised exam bodies such as CREST or OSCP. This is a contract position working remotely, with occasional meetings or workshops as required.
The role is a 12 month initial contract (inside IR35) & can be mostly remote with 1 day a week on-site in either Cheltenham or London.
Main Responsibilities:
Reviewing and sampling technical reports to ensure they meet internal and external quality standards.
Coaching and mentoring team 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 recognised exam bodies (e.g. CREST, OSCP, GIAC) is highly desirable.
Got your attention?
If you believe that you have the skills and experience for the role - then please get in touch. We also offer a referral scheme for any candidates whose details are passed to us that we successfully place. If you have any further questions then please contact Ryan Harris at MERITUS Talent.
Consultant Penetration Tester
Posted 1 day ago
Job Viewed
Job Description
**Consultant - Offensive Security Testing**
**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.
**What you'll be doing:**
**What you'll be doing:**
**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-depth threat intelligence analysis.
+ Identify and prioritize OT and IT assets, services, and systems based on their criticality and potential exposure to identified threats.
+ Strategically prioritize, plan, and schedule penetration testing engagements based on comprehensive threat assessments and client-specific requirements.
+ Produce high-quality, detailed reports that clearly articulate technical findings, potential business impact, and strategic, actionable remediation recommendations for both technical and non-technical stakeholders.
+ Clearly and effectively communicate complex security concepts, adversarial tactics, and critical threat intelligence insights to diverse audiences.
+ Collaborate closely with client IT and cybersecurity teams to drive the enhancement of security protocols and ensure effective, threat-informed remediation of identified vulnerabilities.
+ Track the progress of remediation efforts and provide regular, concise updates to stakeholders, highlighting the reduction of identified threats.
+ Conduct proactive security research and contribute to the creation of technical content on emerging threats, advanced attack techniques, and threat intelligence-led testing methodologies.
+ Contribute to strengthening security monitoring (blue team) capabilities by providing valuable insights into offensive techniques and adversarial behaviors to enhance detection and response effectiveness.
+ Drive the patching regime for identified vulnerabilities, prioritizing remediation efforts based on threat intelligence and the potential for exploitation by advanced threat actors.
**What experience you'll bring:**
**What you'll bring:**
**Skills and Qualifications:**
+ Minimum of 5 years of demonstrable professional experience in penetration testing, with a strong emphasis on understanding, emulating, and leveraging adversarial tactics and threat intelligence.
+ Comprehensive understanding of OT and IT asset profiles, technologies, and security best practice principles, with a proven ability to contextualize them within the current threat landscape.
+ In-depth knowledge of network protocols, cryptography, security vulnerabilities, and common attack vectors employed by sophisticated threat actors.
+ Demonstrated proficiency in utilizing a wide range of penetration testing tools and methodologies, including those specifically used for threat intelligence analysis and application.
+ Proven experience in scoping and executing complex penetration tests, particularly those directly informed and driven by threat intelligence.
+ Exceptional written and verbal communication skills, with the ability to articulate complex technical findings and nuanced threat intelligence insights clearly and concisely to diverse audiences.
+ Strong organizational and time management skills, with a proven ability to effectively manage and prioritize multiple concurrent engagements.
+ Current CREST CRT certification or higher is essential.
+ Must hold or be eligible for SC Clearance.
**Desirable Skills:**
+ Experience with Breach Attack Simulation tools and methodologies.
+ Experience in Vulnerability Management processes and integrating threat intelligence.
+ Understanding of Risk Management frameworks and how threat intelligence informs risk assessments.
+ Hands-on experience with security reviews of AWS, Azure, and GCP environments, incorporating cloud-specific threats.
+ Experience with ISO 27001 auditing/implementation, understanding the role of threat intelligence in compliance.
+ Other advanced cybersecurity certifications such as CISM, CISSP, ECSA, CREST CCT.
**Who we are:**
We're a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects.
Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Women's Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.
For more information on Diversity, Equity and Inclusion please click here: Creating Inclusion Together at NTT DATA UK | NTT DATA ( we'll offer you:**
We offer a range of tailored benefits that support your physical, emotional, and financial wellbeing. Our Learning and Development team ensure that there are continuous growth and development opportunities for our people. We also offer the opportunity to have flexible work options.
You can find more information about NTT DATA UK & Ireland here: are an equal opportunities employer. We believe in the fair treatment of all our employees and commit to promoting equity and diversity in our employment practices. We are also a proud Disability Confident Committed Employer - we are committed to creating a diverse and inclusive workforce. We actively collaborate with individuals who have disabilities and long-term health conditions which have an effect on their ability to do normal daily activities, ensuring that barriers are eliminated when it comes to employment opportunities. In line with our commitment, we guarantee an interview to applicants who declare to us, during the application process, that they have a disability and meet the minimum requirements for the role. If you require any reasonable adjustments during the recruitment process, please let us know. Join us in building a truly diverse and empowered team.
**Closing Date:**
31/07/2025
Back to search Email to a friend Apply now
Senior Penetration Tester
Posted 10 days ago
Job Viewed
Job Description
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 a strong background .
WHJS1_UKTJ
Senior Penetration Tester
Posted today
Job Viewed
Job Description
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 a strong background .
Be The First To Know
About the latest Penetration tester Jobs in United Kingdom !
Penetration Tester UK
Posted 406 days ago
Job Viewed
Job Description
Dionach are a dynamic cyber security company looking for an experienced UK based Penetration Tester to join our growing Cyber Security Team.
Do you have extensive experience in penetration testing as a Penetration Tester?
Do you want to continue your technical progression while gaining more responsibilities? If so, keep reading, this job is for you!
Your main role will be as a Penetration Tester and Cyber Security Consultant, with options for research and development, and to work in other areas of information security consultancy, as well as providing a wide range of services: web and mobile application tests, internal tests, infrastructure tests, social engineering and a range of other security assessments. See Dionach Services for a full list of the services we offer.
To support your growth, we will provide opportunities to improve your qualifications, mentor others and work with a wide variety of technologies and organisations.
Requirements
Essential experience and skills:
- Significant experience in penetration testing, including network, web application and internal penetration testing.
- Holding a relevant certification such as Offensive Security OSCP, CREST CRT, or Cyber Scheme CSTM.
- Experience in leading customer engagements.
- Experience of working as the solo penetration tester on jobs and of working in teams.
- Outstanding verbal communication skills with the ability to explain things in a clear and non-technical way.
- Excellent technical writing skills with a good capacity to adjust your report summary to non-technical people.
- Based in the UK and eligible for Security Check (SC) clearance (UK national or resident in the UK for a minimum of five years).
Experience and skills that would also be beneficial:
- Leading penetration test teams.
- Mentoring your peers.
- Ownership and leadership on developing and providing training courses.
- Proactive at writing technical documents and improving processes.
- Driving licence.
Benefits
- Remote or hybrid working with the opportunity to use Dionach offices based on your preference, and of course, attend team events!
- Technical development and time to develop your skills
- Training labs
- Certification training and sponsorship
- Private health insurance
- Eye care plan
- Employee benefits & discounts platform
- EAP scheme and wellbeing platform, including confidential telephone/face-to-face support and counselling
- Income Protection if unable to work due to illness or injury
Why choose Dionach?
Dionach are a growing information security company specialising in penetration testing and information assurance services. You will have the opportunity to join an experienced team and enhance your skills. Dionach have leading industry certifications including CREST, Cyber Scheme, CHECK, PCI QSA and ISO 27001, with a focus on improving customers’ security, and developing people’s skills and qualifications.
Dionach are always looking for self-motivated people who wish to work in a fun, flexible environment, where they can make a difference to the business. We are a growing business which provide opportunities for both interesting work and career development.
Dionach are proud to be an equal opportunities employer with a commitment to creating an environment which values equality, encourages diversity, and contributes to an inclusive organisational culture.
We strive to create the best working environment possible for each of our employees, whether working from home or from one of our offices. We offer encouragement and support so our employees can develop to their full potential and utilise their unique talents.
Job types: full-time, permanent
Location: remote or hybrid
Gross salary: up to £45-£65k per annum, depending on experience.
Jr. Penetration Tester Internship
Posted 240 days ago
Job Viewed
Job Description
This is a remote position.
The Jr. Penetration Tester Internship Program at EncryptEdge Labs provides aspiring penetration testers with a structured, hands-on experience that covers various aspects of ethical hacking and vulnerability assessment. Over eight weeks, interns will complete challenges designed to build a solid foundation in penetration testing techniques. The curriculum spans topics such as reconnaissance, system hacking, web application security, network-level attacks, and advanced exploitation techniques.
Participants will also learn post-exploitation strategies, reporting, and remediation, culminating in a Capstone Project: Entry Level Penetration Test that tests their acquired skills. This program is ideal for those looking to kickstart a career in offensive security.
Key Responsibilities:
Learn and perform penetration testing techniques and methodologies. Set up and configure penetration testing labs and environments. Conduct information gathering, vulnerability scanning, and network penetration testing. Execute web application security testing and system hacking techniques. Engage in post-exploitation tasks, report writing, and remediation strategies. Engage in a Capstone Project: Entry Level Penetration Test to demonstrate acquired skills. Requirements Core Attributes: Passion for Cybersecurity : Strong interest in offensive security and ethical hacking. Consistency : Proven ability to complete tasks and challenges within deadlines. Documentation Skills : Ability to create clear, concise, and professional reports. Communication Skills : Effective collaboration with mentors and peers. Educational and Learning Background: A degree in Computer Science , Information Security , or related disciplines is preferred but not mandatory. Evidence of self-learning through certifications, projects, or challenges in cybersecurity. Foundational Knowledge: Basic understanding of network protocols (e.g., TCP/IP, HTTP) and operating system fundamentals (Windows/Linux). Familiarity with Linux command-line tools and basic cybersecurity concepts is advantageous but not required. Certifications (Desirable): EC-Council’s Certified Ethical Hacker (CEH) (optional for entry-level candidates) eLearnSecurity Junior Penetration Tester (eJPT) . CompTIA Pentest+ (optional for entry-level candidates). Key Skillset: Proficiency in foundational ethical hacking techniques : reconnaissance, scanning, and exploitation. Basic understanding of vulnerability scanning and writing clear, actionable reports. Knowledge of legal and ethical standards in penetration testing. Technical Tool Familiarity: Hands-on experience with tools like: Kali Linux , Metasploit , Nmap , and Nikto . Web security platforms such as Burp Suite and OWASP ZAP . Basic scripting knowledge in Python , Bash , or a similar language. Logistics and Preparedness: Access to a dedicated computer and a stable internet connection . Ability to set up a secure and isolated work environment (training and support will be provided). Preferred Experience: Practical exposure to penetration testing labs, online challenges, or project-based learning. Previous course work or personal projects in ethical hacking or cybersecurity-related domains. Benefits Hands-on Experience: Gain practical knowledge and skills in penetration testing, including reconnaissance, system hacking, network-level attacks, and advanced exploitation techniques. Professional Development: Receive guidance on career development and opportunities to build a portfolio through real-world challenges and reports. Global Exposure: Participate in a global internship program, connecting with cybersecurity professionals from worldwide. Certificate of Completion: Earn a certificate of completion at the end of the internship, demonstrating your proficiency in penetration testing. Letter of Experience: Interns who successfully complete the program will also receive a letter of experience, outlining the skills and competencies developed during the internship. Letter of Recommendation: Outstanding interns will receive personalized letters of recommendation from EncryptEdge Labs. Remote Learning: Enjoy the flexibility of a remote internship that allows you to work from anywhere. Mentorship: Access support from experienced mentors and cybersecurity experts throughout the internship. Job Opportunities: Top-performing interns may be recommended for job placements through our network of partners and clients, helping you launch your career in penetration testing.