# Windows Infrastructure Engineer

**Company:** [Unison Group](http://jobs.workable.com/companies/deKpPhPMtQZga7XoPG1tSo.md)
**Location:** Singapore, Singapore
**Workplace:** on site
**Employment type:** Full-time
**Department:** Manish

[Apply for this job](http://jobs.workable.com/view/77cf3bcc-1b62-46d9-89ad-9b734e2c6738)

## Description

### Role Attributes

-   To manage and support enterprise Windows Server, Active Directory, and VMware infrastructure, ensuring high availability, security, resilience, and operational excellence across Production and Non-Production environments.
-   Drive modernization, automation, standardization, and continuous improvement of core infrastructure services.
-   Ensure end-to-end ownership of Windows infrastructure services including server lifecycle, Active Directory, virtualization, patching, security, and operational governance.
-   Act as technical focal point with key stakeholders such as Tech Risk, IS, Internal / External Audit, Cloud, Network, and Application teams.
-   Drive best practices in infrastructure reliability, automation, monitoring, and service resilience.
-   Maintain awareness of industry best practices, emerging technologies, AI Ops, and infrastructure modernization trends.

### Key Responsibilities

-   Manage enterprise Windows Server environments (2016 / 2019 / 2022) across Production and Non-Production.
-   Manage Active Directory services including Microsoft Active Directory, Domain Controllers, DNS, DHCP, GPO, authentication, replication, and identity lifecycle.
-   Manage and optimize VMware infrastructure including vCenter, ESXi, HA, DRS, vMotion, vSAN, and DR platforms.
-   Execute server provisioning, upgrades, migrations, patching, hardening, and secure decommissioning.
-   Ensure infrastructure monitoring, alerting, capacity planning, and performance optimization.
-   Manage incidents, root cause analysis, problem management, and change activities aligned to ITIL practices.
-   Ensure security compliance, vulnerability remediation, backup, DR readiness, and BCP requirements.
-   Develop automation using PowerShell / scripting tools to improve efficiency.
-   Maintain accurate SOPs, architecture diagrams, operational runbooks, and technical documentation.
-   Provide technical mentoring and guidance to junior engineers.
-   Participate in standby / on-call support where required.

### Key Decisions within the Role

-   Windows Infrastructure roadmap and lifecycle strategy.
-   AD modernization and security improvements.
-   VMware capacity planning and optimization.
-   Operational risk remediation and service improvement priorities.
-   Infrastructure standards, automation, and technical governance.

### Requirements

-   10+ years of infrastructure engineering experience, preferably in Insurance / Financial Services environment.
-   Strong hands-on expertise in Windows Server, Microsoft Active Directory, DNS, DHCP, and GPO.
-   Strong experience in VMware vSphere / ESXi / vCenter administration.
-   Experience in production support or Site Reliability / Operations environment.
-   Strong troubleshooting, stakeholder management, and communication skills.
-   Experience managing critical incidents and multiple priorities in fast-paced environments.
-   Experience in scripting / automation using PowerShell preferred.
-   Presentation and documentation skills with ability to engage technical and non-technical audiences.