Job Description

Windows Infrastructure Engineer (AWS) The Network IT McMahons Point, NSW, AU

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Windows/AWS - Systems Engineer and Site reliability Engineer

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About the Company

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Our client is a high-performing organisation operating within the financial services industry, delivering advanced technology solutions across cloud, infrastructure, and enterprise Windows platforms. Having migrated from an on-premises environment to AWS, they now run a significant Windows server estate in the cloud and are investing heavily in modernising their Windows and cloud platform capabilities to support complex, customer-facing systems.

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About the Role

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This is a hands-on Windows Systems Engineer / Windows Systems Administrator role with strong AWS skills, combining two key areas in roughly equal measure:

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- ~50% Windows engineering and AWS infrastructure
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- ~50% traditional Windows systems administration and corporate IT support
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You will be building robust automation, managing directory services, and standardising configuration-as-code while also supporting day-to-day corporate IT needs. You'll partner closely with software engineering, database administration, and security teams to embed modern cloud infrastructure practices.

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Windows capability is the primary requirement for this role - candidates need strong, all-round Windows engineering expertise, ideally paired with AWS or broader cloud/SRE experience as a point of differentiation.

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Location & Working Arrangement

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- Based in North Sydney, 3 days per week in the office, 2 days from home
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- Participation in an on-call roster is mandatory (approximately one week on, every 3-4 weeks, with potential to reduce as the environment and automation mature)
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Key Responsibilities

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- Day-to-day administration of Windows servers running in AWS
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- Investigate and resolve performance issues across Windows and cloud infrastructure
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- Build, and operate Windows-based AWS cloud services,



including enterprise workloads, Active Directory replication, storage (FSx/S3), and database layers
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- Take hands-on ownership of service delivery from implementation through to production deployment and ongoing operations
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- Administer AWS Systems Manager (SSM), AWS policies, and role-based access control
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- S3 administration
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- Create scalable systems through automation and platform uplifts, identifying opportunities to reduce manual effort via PowerShell and AWS SSM
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- Control configuration drift and manage automated patching across the Windows fleet
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- Ensure comprehensive observability and alerting across Windows and underlying cloud systems; provision live system metrics, SLO, alerting, and operational reporting dashboards
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- Provide traditional Windows systems administration and support to corporate IT / desktop support teams
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- VPN administration and troubleshooting (Netskope)
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- Microsoft OneDrive / Microsoft 365 administration
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- Provide emergency response and technical leadership during system outages or incidents; conduct post-mortems, root cause analysis, and problem rectification
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- Champion AI-assisted, spec-driven automation practices, using tools such as Claude Code or similar LLM-based coding assistants
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- Potentially contribute to broader automation initiatives, including CI/CD
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- Develop and maintain runbooks, infrastructure diagrams, and OS baseline standard documentation
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Skills & Experience

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Critical:

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- Strong Windows administration / engineering skills - Active Directory Domain Services, Group Policy, DNS, DHCP,



ADCS, IIS, failover clustering, patching, and hardening
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- Commercial AWS experience, including Windows workloads on EC2 with Systems Manager, backup, and DR
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- SCCM / Configuration Manager experience - site and distribution point administration, OS deployment and imaging, application packaging, patch compliance, configuration baselines, collections, and reporting; complementary tooling such as WSUS, MDT, or Group Policy deployment also expected
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- Strong troubleshooting capability across both infrastructure and corporate IT environments
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- Robust PowerShell scripting and automation capability across Windows Server and AWS estates
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- SRE practices, including defining and managing SLOs and error budgets
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Nice-to-have:

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- Netskope
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- Observability tooling - Grafana (the team is moving towards Grafana for observability), Datadog, Dynatrace, Prometheus, Loki, Tempo
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Ideal Candidate Profile

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An all-round Windows engineer who has developed strong AWS/cloud capabilities - potentially someone who has moved from a Windows/Systems Engineering background into cloud or SRE work. The ideal candidate combines both skill sets rather than being purely an SRE/cloud engineer and should be at least comparable to a strong internal Windows candidate in Windows expertise, with additional strength in AWS or another relevant area providing differentiation.

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Certifications

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- Microsoft Certified: Windows Server Hybrid Administrator Associate, or MCSA/MCSE: Windows Server equivalent - very highly regarded
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- AWS Certified SysOps Administrator - Associate or Solutions Architect - Associate - very highly regarded; AWS Specialty certifications (Security, Advanced Networking) highly regarded
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- Terraform Associate or Professional certification well regarded
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- Microsoft 365 (MS-102) and Juniper (JNCIA-SEC or above) certifications desirable
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📌 Windows Infrastructure Engineer (Aws) (New South Wales)
🏢 The Network It
📍 New South Wales