14 of 14 Security Penetration Tester Jobs in the UK

At Vertical Structure (an Instil Company), we specialise in providing human-focused security and penetration testing services for web applications, cloud infrastructure and mobile applications. The Role We are looking for a CTL (Infrastructure) to join our dynamic team based in Belfast. As a Pen Tester, you will be part of … the delivery team, conducting penetration tests and vulnerability assessments across a range of technologies and a wide range of customers including software, fintech, manufacturing, engineering, legal, and public sector. Your insights will be crucial in identifying security weaknesses and helping clients fortify their systems. We offer varied, challenging work in a supportive environment where … tailored actionable recommendations. Manage end-to-end testing, collaborating with clients during kick-off and discovery sessions, providing expert advice and follow up. Stay current with the latest security threats, vulnerabilities, and trends. Research offensive security techniques to assess and validate infrastructure and technologies, including cloud-based systems continuously incorporating new techniques into the More ❯

Cyber Security - Penetration Tester Location: Belfast Hybrid (2 days in office / client site as required) Type: Full-time | Flexible working hours | Hybrid Our client is a long established and independent cyber security firm based in Belfast. As the premier NCSC-approved supplier for CHECK Penetration … to grow, having recently secured several high-impact, multi-year contracts across Northern Ireland, they're strengthening their technical team to meet demand. They are looking for experienced Penetration Testers who are passionate about cyber security, thrive on technical challenges, and want to be part of a trusted and growing consultancy. What You'll … Be Doing: Conducting penetration tests across infrastructure, applications, cloud environments, mobile platforms and operational technology. Performing both manual and automated testing using a range of tools and techniques. Producing clear, concise reports with actionable remediation advice tailored to client needs. Engaging directly with clients to understand requirements and deliver technical debriefs. Staying ahead of evolving threats, techniques More ❯

As a Senior Security Penetration Tester , you will be responsible for supporting the design, implementation, and maintenance of TVM (Threat & Vulnerability Management) solutions, controls and processes across the organisation. You will be liaising with Digital teams to ensure appropriate mitigation and remediation of vulnerabilities detected across our IT estate. This role … as the ability to collaborate effectively with cross-functional teams. The ideal candidate will possess strong communication skills and will be committed to ensuring the highest level of security, compliance, and user experience. What you'll be doing as a Senior Security Penetration Tester Help support and develop … an internal penetration testing function. Conduct network, application penetration testing, code and security reviews. Identify and exploit vulnerabilities through proof-of-concept testing. Support vulnerability management across the enterprise, ensuring that a framework for identification, categorisation and mitigation exists and is implemented and maintained. Responsible for supporting the creation of the More ❯

Consultant – Cyber Security (Penetration Tester) RSM UK Greater London, England, United Kingdom Join or sign in to find your next job Join to apply for the Consultant – Cyber Security (Penetration Tester) role at RSM UK Consultant – Cyber Security (Penetration Tester) RSM UK Greater London, England, United Kingdom 2 weeks ago Be among the first 25 applicants Join to apply for the Consultant – Cyber Security (Penetration Tester) role at RSM UK Get AI-powered advice on this job and more exclusive features. Direct message the … our clients in achieving their strategic goals and empower our people to make an impact and develop their own unique career path. We are seeking an enthusiastic Cyber Security Consultant to join our team. Working alongside our experienced team of specialists, you’ll be delivering offensive security services including digital footprint reconnaissance, social engineering More ❯

s teams are growing, and our software is in demand globally by firefighters, paramedics, hospitals and governments. To meet this demand, we are building an industry-leading cyber security team in Belfast to protect our customers and data from a variety of fast moving and constantly evolving threats. We are looking for an Application Security … are used to help our customers go about their daily job of protecting their communities and saving lives. You will refine our application design and protection using offensive security techniques like design assessment, research, threat intelligence, threat modelling, and controls optimization. You will conduct security assessments of our applications, identify issues, and help address … them early in the development cycle. You'll also support developers in improving coding practices to enhance security and assist with remediating findings from security assessments. Our Security Engineering team operates autonomously within a motivated and forward-thinking Security team. Join our diverse, growing team, working on mission More ❯

Consultant – Cyber Security (Penetration Tester) RSM UK Manchester, England, United Kingdom Join or sign in to find your next job Join to apply for the Consultant – Cyber Security (Penetration Tester) role at RSM UK Consultant – Cyber Security (Penetration Tester) RSM UK Manchester, England, United Kingdom 2 weeks ago Be among the first 25 applicants Join to apply for the Consultant – Cyber Security (Penetration Tester) role at RSM UK Get AI-powered advice on this job and more exclusive features. Direct message the job … support our clients in achieving their strategic goals and empower our people to make an impact and develop their own career path. We are seeking an enthusiastic Cyber Security Consultant to join our team. Working alongside our experienced team of specialists, you’ll be delivering offensive security services including digital footprint reconnaissance, social engineering More ❯

our clients in achieving their strategic goals and empower our people to make an impact and develop their own unique career path. We are seeking an enthusiastic Cyber Security Consultant to join our team. Working alongside our experienced team of specialists, you'll be delivering offensive security services including digital footprint reconnaissance, social engineering … penetration testing and vulnerability assessments to high profile clients across all industries. The purpose of this role is to deliver our offensive security services including digital footprint reconnaissance, social engineering, vulnerability assessments, penetration testing, threat modelling, cyber-attack simulation exercises, and more to high profile clients across all industries. You'll … making improvements, this role is perfect for you! We value diverse experiences and perspectives. Here's what we're looking for in our ideal candidate: Experience in offensive security and penetration testing. Demonstrable experience in infrastructure and web application testing; experience in API testing is desirable. Demonstrable experience using common pentesting tools including Kali More ❯

Role Summary: Join our dynamic Offensive Security Team! As we expand, we are looking for a Pentester / Red Teamer who is enthusiastic about undertaking a range of security assessments, including penetration testing, red team exercises, vulnerability scanning, and physical access evaluations for our clients. Key Responsibilities: Client Engagement Management: Lead … client projects, ensuring clear communication, timely delivery, and exceeding expectations. Act as the primary liaison, providing updates and guidance. Security Assessment Execution: Conduct detailed security assessments, including penetration testing and vulnerability analysis. Systematically identify and document vulnerabilities across network, application, and physical layers. Prepare concise reports for both technical and non … technical stakeholders. Red Team Challenges: Participate in red team simulations, encompassing social engineering attacks and advanced penetration tactics. Post-initial access, perform internal testing to escalate privileges and gain high-level access. Document methodologies and outcomes, providing actionable insights for enhancing security. Technical Proficiencies: Python / Scripting: Demonstrate a high level of proficiency in Python, essential for More ❯

Glasgow, if preferred. Why join Dionach by Nomios? Since being acquired by Nomios in late 2024, Dionach by Nomios has continued its dynamic growth as a leading information security company. Specializing in penetration testing and information assurance services, we offer an incredible opportunity to be part of an experienced team, build your skills, and … grow professionally. Dionach by Nomios holds impressive certifications, including CREST, CHECK, PCI QSA, and ISO 27001. With our focus on enhancing customers' security and fostering team development,be joining a company that prioritizes both your growth and the safety of our clients. We're in an exciting phase of expansion and are looking for self-motivated individuals … for all our employees. If you require accommodations during the application process, let us know, and we'll work to meet your needs. What You'll Do Lead penetration testing teams to conduct penetration tests across various environments, including web applications, APIs, Cloud, and network infrastructure. Lead on-site customer engagements. Lead on developing More ❯

the amazing things we offer. Did we also mention that we've been awarded Gold Investors in People for a fourth consecutive time? About the role A technical security expert with the ability to conduct penetration tests and the appetite to deliver a wide spectrum of interesting security-related work, seeking … a new challenge to join our growing Cyber team to help shape the company's security and compliance services nationwide for a leading IT and business consultancy, supporting national and international clients. Day to day responsibilities Leading and delivering web application penetration testing, with an expectation to participate in infrastructure penetration testing, vulnerability assessments, and security audits across various business functions as needed Lead technical scoping activities and understand a client's requirements to ensure they get the most out of their engagement with Waterstons Write clear, concise, and professional reports that are understandable to both technical and non-technical stakeholders. Maintain up-to-date More ❯

Penetration Tester / Cyber Security Analyst Country: United Kingdom Location: Remote Sector: Other Salary: GBP Market related Job Type: Contract Technologies: Penetration Testing, Hacking, Ethical Hacking, Cyber Security We are looking for a Penetration Tester with solid experience in … this role. Our client has previously outsourced these tasks and is now looking to bring them in-house. The Cyber Security Analyst will be responsible for designing and setting up the Penetration Testing Environment for both on-premise and cloud solutions. Security is essential given that our client manages multiple large More ❯

My client is one of Europe's hottest Cyber Security start-ups who have an ever-growing, global client base. They are looking to bring on board highly motivated Penetration Testers to the team. Key Skills: Ideally experience in Cyber Security, or at a minimum a decent understanding / interest. Some … penetration testing / red team background. Strong work ethic that can be evidenced. Interviews are currently being scheduled. Apply now if you are interested. #J-18808-Ljbffr More ❯

Cyber Security - Penetration Tester Location: Belfast Hybrid (2 days in office / client site as required) Type: Full-time Flexible working hours Hybrid Our client is a long established and independent cyber security firm based in Belfast. As the premier NCSC-approved supplier for CHECK Penetration More ❯

passionate problem-solvers who are hungry to learn, grow, and make a difference. Position Summary Join a collaborative and dynamic team of cybersecurity professionals to conduct cutting-edge penetration testing across a wide range of technologies and environments. As a Consultant, you'll play a key role in identifying vulnerabilities, simulating real-world cyberattacks, and helping our … clients strengthen their security posture. Your day-to-day will include internal and external network penetration testing, application security assessments (browser-based, API, mobile), cloud environment testing, social engineering engagements, and wireless assessments. What You'll Do Perform security assessments across various platforms and technologies Simulate sophisticated cyberattacks … to assess and improve client defenses Advise clients on technical security and compliance best practices Manage your own testing priorities and deliver high-quality work on time Collaborate with internal teams - PMs, QA, sales, and other consultants to deliver exceptional client service Create and maintain testing methodologies, documentation, and processes Write detailed, high-quality reports for both More ❯