Windows Infrastructure Engineer (AWS) The Network IT McMahons Point, NSW, AU
Windows/AWS - Systems Engineer and Site reliability Engineer
About the Company
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.
About the Role
This is a hands-on Windows Systems Engineer / Windows Systems Administrator role with strong AWS skills, combining two key areas in roughly equal measure:
~50% Windows engineering and AWS infrastructure
~50% traditional Windows systems administration and corporate IT support
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.
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.
Location & Working Arrangement
Based in North Sydney, 3 days per week in the office, 2 days from home
Participation in an on-call roster is mandatory (approximately one week on, every 3-4 weeks, with potential to reduce as the workplace and automation mature)
Key Responsibilities
Day-to-day administration of Windows servers running in AWS
Investigate and resolve performance issues across Windows and cloud infrastructure
Build, and operate Windows-based AWS cloud services, including enterprise workloads,



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



failover clustering, patching, and hardening
Commercial AWS experience, including Windows workloads on EC2 with Systems Manager, backup, and DR
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
Robust troubleshooting capability across both infrastructure and corporate IT environments
Strong PowerShell scripting and automation capability across Windows Server and AWS estates
SRE practices, including defining and managing SLOs and error budgets
Nice-to-have:
Netskope
Observability tooling - Grafana (the team is moving towards Grafana for observability), Datadog, Dynatrace, Prometheus, Loki, Tempo
Ideal Candidate Profile
An all-round Windows engineer who has developed robust 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.
Certifications
Microsoft Certified: Windows Server Hybrid Administrator Associate, or MCSA/MCSE: Windows Server equivalent - very highly regarded
AWS Certified SysOps Administrator - Associate or Solutions Architect - Associate - very highly regarded; AWS Specialty certifications (Security, Advanced Networking) highly regarded
Terraform Associate or Professional certification well regarded
Microsoft 365 (MS-102) and Juniper (JNCIA-SEC or above) certifications desirable
#J-*****-Ljbffr

📌 Windows Infrastructure Engineer (Aws) (Sydney)
🏢 The Network It
📍 Sydney