Senior Penetration Tester
2 weeks ago
Senior Penetration Tester – Instil We are looking for a Senior Penetration Tester with CHECK to join our growing team. You will play a critical role in delivering high‑quality penetration testing engagements across infrastructure, cloud, web, and mobile applications for a diverse range of clients, including software, fintech, manufacturing, engineering, legal, and public sector organisations. This is a hands‑on role where your expertise will help identify and remediate security weaknesses, while contributing to the development of our methodologies and mentoring junior testers. If you’re passionate about offensive security and want to work on varied, challenging projects in a supportive environment, we’d love to hear from you. Essential Skills CHECK Team Member (CTM) status Current UK Security Clearance At least 2+ years of penetration testing experience Strong experience with web application and network penetration testing methodologies In‑depth knowledge of operating systems (Linux, Windows, Active Directory) Familiarity with cloud environments and ability to perform cloud security reviews Proficiency with tools such as BurpSuite Pro, Nmap, Nessus, and Kali Linux Knowledge of scripting languages (Python, Shell, etc.) Nice‑to‑Have CHECK Team Lead (CTL) status (Infrastructure or Applications) Relevant certifications (OSCP, Cyber Scheme) Experience with Hack the Box or Capture‑the‑Flag simulations Why Join Instil? Recognition That Matters: A discretionary annual performance bonus that rewards your impact and contribution to our success. Flexibility Built In: Flexible working arrangements and summer hours, because life isn’t 9 to 5, and balance matters. Financial Security: A highly competitive pension scheme with generous employer contributions, private healthcare, and life assurance for peace of mind. Health & Wellbeing: Employee Assistance Programme, mental health support, cycle‑to‑work scheme, and regular social events to keep our culture vibrant. Time to Recharge: 35 days holiday, enhanced maternity pay, and family‑first policies so you can focus on what matters most. Learning Never Stops: From courses to certifications, we’ll invest in your development so you can keep growing and shaping what’s next. Community & Culture: Opportunities to volunteer, give back, and be part of initiatives that make Instil a truly inclusive and connected workplace. Company Description Instil has been delivering world‑class software engineering and technology solutions for over 20 years, trusted by global brands to solve complex challenges and drive innovation. From modernising legacy systems to building cutting‑edge applications, we help our clients navigate an ever‑changing digital landscape with confidence and agility. We’re proud to be an award‑winning employer, reflecting how our people are at the heart of everything we do: Recognised as a Great Place to Work® for three consecutive years, and in 2024 ranked in the Top 20 Best Workplaces in the UK for medium‑sized companies. Winner of Company of the Year at the Digital DNA Awards 2022, celebrating excellence in Northern Ireland’s tech sector. Driven by a love for technology and a commitment to excellence, we bring together people who want to make a difference. We’ll support your journey, because your success is part of ours. Location: Leeds, England, United Kingdom Seniority level: Mid‑Senior level Employment type: Full‑time Job function: Information Technology Industries: Software Development #J-18808-Ljbffr
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Junior Penetration Tester
4 days ago
Leeds, United Kingdom Pentest People Full timePentest People is a UK-based security consultancy specialising in providing Penetration Testing as a Service to all its clients. Our innovative approach to security testing merges the benefits of consultant-led penetration testing with ongoing vulnerability assurance through our advanced SecurePortal. This provides clients with a continuous, living threat...
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Senior Penetration Tester – Cloud
2 weeks ago
Leeds, United Kingdom Instil Full timeA leading technology solutions provider in Leeds is looking for a Senior Penetration Tester to conduct high-quality testing engagements across diverse environments including infrastructure, cloud, web, and mobile applications. The ideal candidate has at least 2 years of experience and strong expertise in penetration testing methodologies. This full-time role...
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Penetration Tester
7 days ago
Leeds, United Kingdom Halo I.S Ltd Full timeResearch and stay up-to-date with the latest security threats, vulnerabilities, and attack vectors to continuously improve testing methodologies and approaches. - Generate comprehensive reports, detailing findings, risks, and recommended remediation actions for technical and non-technical stakeholders. - Mentor and provide technical guidance to junior...
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Penetration Tester
3 days ago
Leeds, United Kingdom NonStop Consulting Ltd Full timeNonStop Consulting is looking for a Penetration Tester for an international private company, available to work on a permanent basis from home with occasional travels to Leeds. **Main skills required**: - Experience working as a penetration tester - Infrastructure testing - Continuous testing - CREST CRT knowledge **What's in it for you?** **Personal...
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Penetration Tester
2 weeks ago
Leeds, Leeds, United Kingdom Claranet Full time £30,000 - £60,000 per yearVacancy NamePenetration TesterReq NumberVN329Employment TypeFull-TimeLocationLeeds/RemotePosition SummaryAbout ClaranetFounded at the beginning of the bubble in 1996, our CEO Charles Nasser had a light bulb moment to develop a truly customer-focused IT business. Since then, Claranet has grown from an Internet Service Provider (ISP) in the UK to being one of...
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Associate Penetration Tester
3 weeks ago
Leeds, United Kingdom Claranet Full timeJob DescriptionPosition SummaryAs an Associate Penetration Tester at Claranet, you will able to deliver you own web application tests and through training and partnering, you will have the opportunity to become involved in a full range of testing work from mobile app and infrastructure testing to social engineering and Red Team exercises.Role...
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Penetration Tester
2 weeks ago
Leeds, United Kingdom Claranet Full timePosition Summary The penetration testing team at Claranet Cyber Security is composed of highly skilled, professional ethical hackers with a real passion for improving our clients’ security posture by demonstrating how systems can be compromised and what steps can be taken to defend. Team members work on everything from client projects to development work...
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Penetration Tester
7 days ago
Leeds, United Kingdom Claranet Full timePosition Summary The penetration testing team at Claranet Cyber Security is composed of highly skilled, professional ethical hackers with a real passion for improving our clients’ security posture by demonstrating how systems can be compromised and what steps can be taken to defend. Team members work on everything from client projects to development work...
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Penetration Tester
7 days ago
Leeds, United Kingdom Claranet Full timePosition SummaryThe penetration testing team at Claranet Cyber Security is composed of highly skilled, professional ethical hackers with a real passion for improving our clients’ security posture by demonstrating how systems can be compromised and what steps can be taken to defend. Team members work on everything from client projects to development work...
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Penetration Tester
7 days ago
Leeds, United Kingdom Claranet Full timePosition SummaryThe penetration testing team at Claranet Cyber Security is composed of highly skilled, professional ethical hackers with a real passion for improving our clients’ security posture by demonstrating how systems can be compromised and what steps can be taken to defend. Team members work on everything from client projects to development work...
