Lead Engineer - Windows Infrastructure

Responsibilities

• Build, provision, and maintain Windows servers, VM clusters, and VMs; apply domain join, security baselines, and GPOs in line with organisational standards.
• Execute monthly patching cycles using WSUS/SCCM or equivalent; validate application services post-patch and record evidence for compliance.
• Monitor OS and VM health (services, event logs, performance counters) and resolve faults; implement and tune monitoring thresholds and dashboards to reduce alert noise.
• Troubleshoot authentication, GPO application, and group membership issues; investigate CPU, RAM, disk, and network performance bottlenecks using perfmon and standard tooling.
• Validate and renew TLS/certificate bindings for Windows services (IIS, RDP, LDAP); enforce least-privilege local admin practices and secure service account usage.
• Ensure antivirus/EDR agents are installed, healthy, and reporting across the Windows estate; remediate coverage gaps in line with security policy.
• Manage and administer Rubrik (the primary backup solution) across the Windows estate: maintain backup agents, validate policy coverage, and run periodic restore tests; capture and document DR evidence; participate in DR tests (site failover, recovery) and document outcomes.
• Track EOL OS and virtualisation layer versions; plan and coordinate in-place upgrades or migrations, managing risk with application and business stakeholders.
• Lead incident response and root-cause analysis for Windows server-related issues; drive lasting remediation and produce post-incident reports.
• Oversee, maintain, and support the Hypervisor/Virtualisation layer (VMware, Hyper-V, or Nutanix) used within on-premises data centres and VMC on AWS.
• Maintain and support Windows Failover Clusters across on-premises data centres and VMC on AWS; ensure HA policies and DRS configurations are current and tested.
• Support application teams with prerequisites, port configurations, and service dependencies; collaborate with network, storage, and cloud teams for seamless operations.
• Keep server runbooks, diagrams, and CMDB attributes current and accurate; maintain comprehensive documentation of architectures, configurations, and operational procedures.
• Provide weekly operational KPIs (availability, incidents, patch compliance, backup success) and present findings in governance, reporting, and service review meetings.
• Ensure alignment with SLA requirements; lead the response to audit findings, ensuring timely remediation and evidenced closure.
• Manage vendor relationships and coordinate with third-party Windows support providers (Microsoft Premier, hardware OEMs); oversee secure decommissioning of EOL hardware.
• Mentor and develop engineers, fostering skill development and knowledge sharing; manage team workload and capacity across concurrent workstreams, maintain and prioritise the team's Jira ticket queue, and organise the On-Call rota for the Windows area.
• Drive continuous improvement in Windows server management processes and stay current with Microsoft technology roadmaps and emerging best practices.
• Support business continuity and disaster recovery planning for Windows server environments.

Requirements

• 7+ years of enterprise Windows Server administration and engineering, with at least 2 years in a team lead or leadership role: including team workload management, tick

Benefits

Additional Information

REGENT LP Regent is a global private holding company focused on investing in and transforming businesses across a broad spectrum of industries including automotive, technology, consumer products, retail, industrial, and media. Known for driving innovation and operational excellence, Regent partners with management teams to unlock long-term value. ROLE OVERVIEW We are seeking an experienced Lead Engineer specialising in Windows Infrastructure to join a global technology team. This area lead role has full accountability for the stability, security, and continuous improvement of an enterprise Windows server estate - spanning on-premises data centres, VMware virtualisation, and VMC on AWS. This role manages the lifecycle of Windows servers, ensuring the stability, security, and performance of business-critical applications. The successful candidate combines deep technical expertise with the ability to mentor junior team members and collaborate across application, network, storage, and cloud teams.* *Please note this role is on-site 5 days per week AREA CONTEXT The Windows area is dedicated to the management of server operating systems, ensuring the stability, security, and performance of business-critical applications. It covers the deployment, patching, and monitoring of Windows servers across data centres and cloud environments. The area addresses operational challenges such as end-of-life hardware, legacy systems, and the need for rapid response to incidents. It supports business continuity through robust backup and recovery processes and aligns with best practices for system administration.

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