An exciting opportunity is available for an experienced Lead Penetration Tester to join a high-performing cyber security team within a large federal government environment.In this role, you will lead the delivery of complex penetration testing and vulnerability assessment activities across enterprise systems, helping to identify security weaknesses and strengthen cyber resilience.
You will also provide expert technical advice, influence security practices, and mentor team members.The successful person will be a highly skilled cyber security professional with a solid background in penetration testing within complex environments.Key ResponsibilitiesLead and deliver penetration testing and vulnerability assessments across applications, infrastructure and enterprise platformsConduct advanced threat simulations to identify weaknesses in security controlsDevelop and execute security testing plans and methodologiesProvide technical leadership and oversight of testing activities and findingsAnalyse and report on vulnerabilities, including clear remediation recommendationsCollaborate with system owners to define scope and ensure effective remediationDrive continuous improvement of tools, techniques and proceduresMentor and coach team members,



supporting capability uplift and knowledge transferContribute to security standards, risk assessments and governance activitiesKey ExperienceProven experience leading complex penetration testing engagements and simulated attack exercisesDeep expertise across web, mobile and infrastructure testingStrong understanding of security vulnerabilities, controls and risk managementExperience providing technical advice to senior stakeholdersAbility to lead teams, set priorities and manage competing workloadsCREST, OSCP/OSCE, CEH, GIAC, or CompTIA Security+/PenTest+ (or equivalent)AGSVA NV1 clearance required (Baseline may be considered)What's on OfferHybrid working arrangement with 2-3 days in the office12 month contract + 2x 12-month extension optionsOpportunity to support the cyber uplift for a major Federal agencyInfluence enterprise-level security posture and resilienceDue to the nature of this role, this job is open to Australian Citizens only.Calleo is an equal opportunity employer and we encourage applications from all people including Aboriginal and Torres Strait Islander peoples.
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📌 Penetration Tester (Melbourne)
🏢 Calleo
📍 Melbourne