Senior System Administrator – L3 (APAC)

Senior System Administrator – L3 (APAC)

Job Description

About Savills:

For over 160 years, Savills has been helping people thrive through place and spaces.

Listed on the London Stock Exchange, we have more than 40,000 professionals collaborating across over 70 countries, delivering unrivalled coverage and expertise to the world of commercial and prime residential real estate.

By applying world research data and trends to local and global settings, we’re able to empower our clients with insights from the forefront of the industry – bringing their aspirations to life through innovative, tailor-made solutions.

Whether we are working with a global corporate looking to expand, an investor seeking to sustainably optimise their portfolio, or a family trying to find a new home, we help our clients make better property decisions.

Equal Employment Opportunity:

Savills is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Scope:

The System Administrator - L3 is a senior technical role responsible for supporting and improving on-premises and Microsoft Azure infrastructure. The position provides advanced troubleshooting across Windows Server, Active Directory, Microsoft Entra ID, Azure, patching, Microsoft Exchange, Veeam Backup, reporting, Microsoft Graph API and infrastructure automation.

The role acts as an escalation point for complex incidents and contributes to infrastructure projects, operational reporting and process improvement. Success requires strong ownership, structured analysis and clear communication with technical and business stakeholders.

Key Responsibilities

On-Premises Server Administration

• Administer and support Windows Server infrastructure across physical and virtual environments.
• Provide L3 troubleshooting for operating systems, server performance, services, storage, networking and application-related issues.
• Complete server builds, upgrades, migrations, hardening, maintenance and decommissioning activities.
• Diagnose CPU, memory, disk, service and event-log issues, and support virtualization and hybrid infrastructure environments.

Microsoft Azure and Cloud Infrastructure

• Administer and troubleshoot Azure Virtual Machines and supporting infrastructure services.
• Resolve Azure VM connectivity, performance, availability, storage and configuration issues.
• Troubleshoot dependencies and connectivity between on-premises and Azure environments.
• Work with Azure networking, Network Security Groups, monitoring, storage and related components, and support cloud migration and modernization initiatives.

Azure and Windows Patching

• Plan, execute, monitor and validate monthly security and cumulative patching cycles using Azure Update Manager and enterprise Windows Server patching processes.
• Perform pre-patch health checks and post-patch server and application validation.
• Troubleshoot Windows Update failures, compliance gaps and deployment errors.
• Maintain patch-compliance dashboards and management reports.

Active Directory and Microsoft Entra ID

• Administer Active Directory and provide L3 support for replication, DNS, Group Policy, Kerberos, authentication, domain-controller and sign-in issues.
• Manage users, groups, computers, organisational units, Group Policy Objects and delegated permissions.
• Support hybrid identity environments involving Active Directory and Microsoft Entra ID.
• Resolve complex identity, authentication and access incidents.

Microsoft Graph API and Infrastructure Automation

• Develop and maintain secure automation using Microsoft Graph API, PowerShell, Azure Automation and related scripting technologies.
• Automate user lifecycle, licence management, reporting, device and inventory processes, and recurring administrative tasks.
• Design API-based integrations and workflows across Microsoft 365 and Azure services using appropriate identity, authentication and authorisation methods.
• Create reusable scripts, runbooks and operational tools with maintainable logging and error handling.

Dashboard, Reporting and Monitoring

• Design and maintain dashboards covering server health, Azure resources, patch compliance, backup status, licences and service performance.
• Create management and technical dashboards using Power BI or other enterprise reporting platforms.
• Automate data collection and dashboard refresh processes using Azure Monitor, Log Analytics, Microsoft Graph API, PowerShell and other approved sources.
• Develop actionable operational indicators and reporting for technical teams and management.

Backup, Recovery and Business Continuity

• Administer and troubleshoot Veeam Backup & Replication jobs, including backup, replication and recovery activities.
• Perform virtual machine, file and application-level restores.
• Monitor backup health, capacity, retention and recovery points.
• Support backup testing, disaster recovery and business-continuity activities.

Microsoft Exchange

• Administer and support Microsoft Exchange Server and/or Exchange Online.
• Troubleshoot mail flow, mailbox, Outlook, authentication, connectivity, permissions and transport issues.
• Support hybrid messaging environments where applicable.

L3 Incident, Problem and Change Management

• Act as a senior escalation point for complex infrastructure incidents.
• Apply structured troubleshooting, root-cause analysis and permanent remediation across Windows Server, Azure, Active Directory, DNS, Exchange, Veeam and hybrid infrastructure.
• Contribute to major incident, problem and change-management processes.
• Prepare clear root-cause analysis documentation for critical incidents and recurring problems.

Documentation, Stakeholder and Vendor Management

• Maintain SOPs, architecture notes, knowledge articles, automation documentation and troubleshooting guides.
• Provide clear technical updates to management, service desk and L2 teams, project teams and business stakeholders.
• Coordinate with vendors and Microsoft support on complex technical issues.
• Promote knowledge sharing and continuous improvement across infrastructure operations.

Key Success Metrics (KPIs)

• Consistent resolution and ownership of complex L3 infrastructure incidents within agreed service targets.
• Stable, secure and reliable on-premises and Azure infrastructure.
• High patch compliance and effective remediation of deployment failures and compliance gaps.
• Reliable backup operations, successful recovery validation and effective disaster-recovery support.
• Accurate, actionable dashboards and timely operational reporting.
• Measurable reduction in repetitive manual activity through secure and maintainable automation.
• Clear documentation, stakeholder communication and root-cause analysis quality.

Experience & Qualifications

• 8+ years of relevant experience in enterprise infrastructure administration and troubleshooting.
• Strong hands-on experience supporting hybrid on-premises and Microsoft Azure environments.
• Advanced troubleshooting capability across Windows Server, Active Directory, Microsoft Entra ID, DNS, Group Policy, Kerberos, Exchange and Veeam.
• Demonstrated experience with Microsoft Graph API, PowerShell, automation runbooks and API-based workflows.
• Experience creating infrastructure dashboards, operational reports and monitoring solutions.
• Strong analytical, incident-management, documentation and communication skills.

Preferred Certifications

• Microsoft Certified: Azure Administrator Associate (AZ-104).
• Microsoft Certified: Windows Server Hybrid Administrator Associate (AZ-800/AZ-801).
• Microsoft 365 or Microsoft Entra ID-related certification.
• ITIL certification is mandatory.