The Opportunity
This is a targeted, cross-platform technical due diligence role focused on documenting and validating an integrated Unix and Windows environment being transitioned into a new operating model, producing high-quality current-state artefacts, risk observations, and a pragmatic transition approach.
About the Role
In this role, you will take ownership of the technical review, turning a complex inherited environment into clear, supportable documentation and a transition-ready plan.
- Inventory Unix and Windows services and validate what actually exists in the estate
- Map cross-platform dependencies (DNS, mail relay, proxy, logging, monitoring paths)
- Document monitoring, escalation, control boundaries, and supportability gaps
- Produce current-state artefacts: service inventories, dependency maps, security observations
- Partner with Unix, Microsoft, security, and infrastructure teams to confirm assumptions
- Contribute to a high-level solution architecture and delivery plan for transition
About You
You are a senior infrastructure specialist who can cut through ambiguity, work across teams, and document complex platforms in a way that stands up to scrutiny. Government experience preferred.
- 7+ years in large-scale enterprise Unix and Windows environments
- Strong Unix/Linux (Red Hat or Oracle Linux) admin and hardening practices (SELinux, systemd)
- Windows Server experience across legacy to current (2008 to 2025)
- Hands-on knowledge of services like BIND (DNS), Postfix/Sendmail (SMTP relay), Squid (proxy)
- Experience with transitional architecture (current, interim, target states with decision gates)
- Comfortable engaging stakeholders and writing crisp technical artefacts and recommendations
The Benefits
- Clear, outcomes-based engagement - deliver tangible artefacts that get used
- Work on a complex, integrated enterprise estate - high visibility and impact
- Hybrid flexibility (Brisbane, 3 days onsite) with an initial 6-month contract
How to Apply
Please apply with current resume in Microsoft Word format only (.doc or .docx). If you would like to have a confidential discussion, please contact Nina Magill on nina.magill@davidsonwp.com, quoting reference JN -032026-42642. Want to know more about Davidson? Visit us at www.davidsonwp.com


