Infrastructure Engineer
- Lead the technical remediation of security vulnerabilities identified in a recent penetration test.
- Manage compliance and patch updates across a hybrid Windows and Azure environment.
- Implement security measures and harden systems against OWASP Top 10 threats.
- Infrastructure Engineer
- Security Focus/PenTest
- Day rate contract
Day Rate Contract - Infrastructure Engineer (Security) - Pen Test remediation - Sydney/Hybrid
Our client is running a security remediation program off the back of a recent penetration test and needs an experienced Infrastructure Engineer to lead the technical fix-up. This isn't BAU support, you'll be closing pen test findings, hardening a hybrid Windows and Azure environment, and proving compliance uplift on a live project.
What you'll be doing:
- Remediating critical and high vulnerabilities from pen test findings across endpoints, on-prem servers, and Azure
- Managing patch and update compliance (Intune, SCCM, Azure Update Manager, WSUS/GPO)
- Implementing and tuning Azure WAF and Application Gateway against OWASP Top 10 threats
- Administering and hardening on-prem Windows Server, Active Directory, DNS/DHCP, and Hyper-V/VMware alongside Azure workloads
- Hardening Entra ID (Conditional Access, MFA, PIM) and reducing privileged access exposure across hybrid identity
- Running vulnerability scanning and EDR triage (Qualys, Defender, Sentinel)
- Aligning remediation work to Essential Eight and ISO 27001 controls
- Managing change through CAB/TAB processes with proper rollback planning
What you'll bring:
- Strong Microsoft stack experience across on-prem Windows Server, AD/GPO, Azure, Entra ID, Intune, Defender, and SCCM
- Confidence working hybrid, not just a pure cloud background
- Practical security tooling exposure: SIEM (Sentinel), EDR, Qualys or equivalent VMDR
- Working knowledge of Essential Eight and ISO 27001 frameworks
- PowerShell scripting for automation and compliance reporting
- Comfortable in a live remediation environment with tight timeline
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