Senior Offensive Security Engineer

2 days ago

Dublin, Ireland Reperio Human Capital Full time

Senior Offensive Security Engineer 198728 Desired skills: Red-teaming, Penetration-testing, Exploitation, Application, Security, Cloud Senior Offensive Security EngineerLocation: Dublin Type: Full-TimeSalary: €100,000 - €125,000A technical security group expanding its remit is adding an engineer who can move comfortably between structured offensive testing and the messier realities of live systems. The work leans on methodology, creativity, and the discipline required to validate assumptions rather than rely on scanning outputs. The environment is broad applications, identity flows, underlying infrastructure, and the occasional quirk that only shows up once multiple trust boundaries intersect. It's a role suited to someone who enjoys breaking things responsibly, translating findings into actionable engineering guidance, and helping raise the security bar across a distributed estate.The RoleYou'll design and execute targeted offensive test plans, validate vulnerabilities, and support engineering teams through the remediation lifecycle. Expect deep dives into internal applications, APIs, containerised workloads, network pathways, cloud components, and identity configurations. You'll also participate in adversary-simulation exercises and provide clear technical reporting anchored in risk and exploitability.Primary ResponsibilitiesExecute internal penetration tests across applications, infrastructure, identity workflows, and cloud-backed servicesValidate and triage vulnerabilities, distinguishing genuine exploitable paths from noiseProduce concise, technically grounded findings and remediation guidanceRe-test fixes and document closure evidenceContribute to threat-informed adversary simulations and coordinated red/blue engagementsReview externally submitted findings and support internal verificationPartner with engineering teams to improve designs, authentication flows, and control patternsMaintain and enhance internal tooling, repeatable test patterns, and documentation used by the teamProvide risk summaries and posture updates to technical stakeholdersSkills & ExperienceStrong technical background in offensive security, penetration testing, or exploit developmentHands-on experience with tooling such as Burp, Nmap, Kali, custom scripts, or internal frameworksSolid understanding of application security, infrastructure fundamentals, and cloud-native attack pathsAbility to articulate complex vulnerabilities to technical and non-technical audiencesExperience guiding teams through remediation cyclesFamiliarity with MITRE ATT&CK, OWASP, and threat modelling approachesCertifications (OSCP, CRTO, GPEN, OSEP, are beneficial but not requiredReperio Human Capital acts as an Employment Agency and an Employment Business. Recruiter not found

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