Senior Penetration Tester

The Role Were looking for a Senior Penetration Tester to join our growing security team, delivering high-quality testing across web applications, networks, cloud environments, and APIs for a diverse range of clients.<br><br>Check you match the skill requirements for this role, as well as associated experience, then apply with your CV below.<br><br>This is a hands-on role where youll help organisations identify and remediate real-world security risks.<br><br>Youll also have the opportunity to contribute to improving our tooling, methodologies, and knowledge sharing within the team.<br><br>If youre passionate about offensive security and enjoy practical, problem-solving-led work in a collaborative environment, wed love to hear from you.<br><br>What Youll Be Doing Deliver penetration testing engagements across: Web applications Network and infrastructure Cloud environments APIs and supporting services Identify vulnerabilities, validate exploitability, and clearly articulate risk.<br><br>Produce concise, actionable reports suitable for both technical and non-technical stakeholders.<br><br>Support clients with vulnerability remediation and technical explanations.<br><br>Contribute to the evolution of testing methodologies and internal tooling.<br><br>Collaborate closely with other testers and support the development of junior team members.<br><br>Essential Skills & Experience 2+ years experience in a hands-on penetration testing role.<br><br>Strong experience with web application and network/infrastructure testing.<br><br>Solid understanding of common vulnerability classes (e.g.<br><br>OWASP Top 10).<br><br>Good working knowledge of Linux, Windows, and Active Directory environments.<br><br>Experience testing or reviewing cloud environments (AWS, Azure, GCP).<br><br>Proficiency with common tooling such as: Burp Suite Nmap Nessus (or equivalent) Kali Linux Scripting experience in Python, Bash, or similar, for automation or custom tooling.<br><br>Ability to clearly communicate technical findings and risk.<br><br>Nice to Have Relevant security certifications (e.g.<br><br>OSCP, OSWE, CRTO, Cyber Scheme incl.<br><br>CSTM or CSTL).<br><br>UK Security Clearance Experience with capture-the-flag platforms, labs, or challenge-based learning.<br><br>Mobile application testing experience.<br><br>Prior consultancy or client-facing experience.<br><br>Why Join Instil? At Instil, we believe great work starts with happy, motivated people.<br><br>Thats why weve built a benefits package that supports your wellbeing, growth, and life outside of work, because when you thrive, so do we.<br><br>Recognition That Matters: A discretionary annual performance bonus that rewards your impact and contribution to our success.<br><br>Flexibility Built In: Flexible working arrangements and summer hours, because life isnt 9 to 5, and balance matters.<br><br>Financial Security: A highly competitive pension scheme with generous employer contributions, private healthcare, and life assurance for peace of mind.<br><br>Health & Wellbeing: Employee Assistance Programme, mental health support, cycle-to-work scheme, and regular social events to keep our culture vibrant.<br><br>Time to Recharge: 35 days holiday, enhanced maternity pay, and family-first policies so you can focus on what matters most.<br><br>Learning Never Stops: From courses to certifications, well invest in your development so you can keep growing and shaping whats next.<br><br>Community & Culture: Opportunities to volunteer, give back, and be part of initiatives that make Instil a truly inclusive and connected workplace.<br><br>And thats just the start, drop us a note to find out more.<br><br>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.<br><br>From modernising legacy systems to building cutting-edge applications, we help our clients navigate an ever-changing digital landscape with confidence and agility.<br><br>Were 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 .<br><br>Winner of Company of the Year at the Digital DNA Awards 2022 , celebrating excellence in Northern Irelands tech sector.<br><br>Driven by a love for technology and a commitment to excellence, we bring together people who want to make a difference. xwzovoh <br><br>Well support your journey, because your success is part of ours.<br><br>#LI-PR1 #InstilCareers<br>TPBN1_NI