like SAST and DAST deployments. Provide technical support with risk assessments on PHI, and steering improvements to our environment in line with common standards such as NIST. Support External PenetrationTesting and application vulnerability efforts, delivering assessments and prioritizing remediation activities across the organization. Be across Threat Intelligence relevant to our industry and geographic regions, and translating that … with our technology teams. Who You Are - some of the essential things required to be successful in the role At least 4 years' experience in securing software or infrastructure, penetrationtesting or pure product or application security Strong expertise in offensive security techniques and methodologies, including ethical security testing Deep understanding of secure coding practices, common vulnerabilities More ❯
Londonderry, Northern Ireland, United Kingdom Hybrid / WFH Options
Digital Waffle
planning and recommend hardware/software upgrades. Security & Compliance; Implement and manage network security policies, firewalls, and intrusion detection systems (IDS/IPS). Perform vulnerability assessments and network penetration testing. Ensure compliance with ISO 27001, GDPR, SOC 2, and other industry standards. Cloud & Virtualization Networking; Manage cloud networking (AWS, Azure, Google Cloud) including VPCs, peering, and hybrid connectivity. More ❯
You’re walking into a mature environment: The company already has Secure SDLC and DevSecOps practices in place. This isn’t a ground-up build – it’s about stress-testing and strengthening what’s already built. You’ll have impact and visibility: Reporting to the CIO, with close collaboration with the Head of Information Security (compliance), you’ll shape … You’ll Be Doing: Actively identifying vulnerabilities in applications, especially around authentication flows, payments, and sensitive data handling Thinking creatively and adversarially – “breaking the app” to protect it Performing penetrationtesting, threat modelling, and secure code reviews Working directly with developers to integrate security best practices into an already-operational DevSecOps pipeline Advising on product and architectural design … culture that prioritises customer trust and system integrity What We’re Looking For: Deep hands-on experience in application security – not just theory, but experience in secure coding, manual testing, and fixing complex vulnerabilities A proven background in credit cards, payments, or financial transaction systems Understanding of modern application architectures (APIs, microservices, cloud platforms – likely Azure) Familiarity with OWASP More ❯
At Vertical Structure (an Instil Company), we specialise in providing human-focused security and penetrationtesting 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 ethical hacking exercises in client's Infrastructure/cloud, Web Applications and Mobile Applications. Write detailed reports outlining vulnerabilities and providing 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 team's methodology. Automate repetitive tasks by developing scripts to streamline testing processes. Mentor junior penetration testers and contribute to their professional development. Play a key role in enhancing existing tools, methodologies, and reports. Support pre-sales efforts by acting as More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Ocho
Ocho are exclusively working on a number of Penetration Tester roles! If you're passionate about ethical hacking and want to work on real-world cybersecurity challenges, this is the role for you. This organisation is on a serious growth trajectory, having secured major clients and high-profile projects, offering you the chance to work on cutting-edge security … challenges in a dynamic and ambitious environment. What You'll Be Doing: Perform penetration tests on networks, applications, and infrastructure. Identify and exploit vulnerabilities to strengthen security defences. Use tools like Burp Suite, Nessus, Metasploit, and Kali Linux. Provide detailed reports with clear, actionable recommendations. Experience required: Strong knowledge of OWASP, CVE, and security frameworks. Hands-on experience with … ethical hacking & exploit techniques. Scripting & automation skills a plus. Ability to communicate findings to technical and non-technical teams. Proficiency in using penetrationtesting tools such as BurpSuite Pro, Nmap, Nessus, and Metaspolit. Experienced in using Kali Linux and the associated penetrationtesting tool suite Nice to Have: Relevant security certifications (e.g. OSCP, CREST, Cyber Scheme. More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Cyber Guarded Ltd
this requirement will not be considered. Cyber Guarded Ltd is a long-established and independent cyber security firm based in Belfast. As the premier NCSC-approved supplier for CHECK PenetrationTesting in Northern Ireland, including Cyber Incident Exercising being conducted at the highest levels, along with Cyber Advisor – Cyber Essentials, we support clients across both public and private … sectors. As we continue to grow significantly, securing contracts across Northern Ireland, we’re strengthening our technical team to meet demand. We’re 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 do: Conduct infrastructure, app, cloud & OT penetrationtesting Deliver clear, actionable reporting and remediation advice Work hands-on with clients from scoping through debrief Contribute to tooling, methodology and internal R&D What we’re looking for: 2+ years’ paid employment in penetrationtesting CHECK Team Lead or CHECK Team Member status (or equivalent) CTL must hold UK CSC Professional Title at Principal More ❯