Senior Windows Systems Engineer

optimum solutions (singapore) pte ltd; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Optimum Solutions (Singapore) Pte Ltd is seeking a seasoned Infrastructure Engineer to design, manage, and automate secure Windows infrastructure and Active Directory environments. You will leverage PowerShell scripting and AI-assisted tools to streamline IT operations and reduce manual workloads.

The role focuses on provisioning Windows VMs, AD operations, automation, and governance to ensure highly available, compliant IT services across on-premise and cloud environments in Singapore.

Qualifications

• Strong hands-on background in Windows Server and Microsoft Active Directory engineering.
• Strong experience in Azure and GCC Cloud environments
• Advanced proficiency in PowerShell scripting and translating manual operational processes into reliable, repeatable automation.
• Practical experience integrating AI tools or AIOps platforms into infrastructure operations and troubleshooting.
• Deep expertise in root-cause analysis, complex system troubleshooting, and supporting highly available, secure environments.
• Experience with GCC Active Directory and Remote Desktop Services integration.

Responsibilities

• Infrastructure Management: Provision, configure, and maintain on premise as well as Cloud environments: Windows VMs, high-availability clusters, and core server roles (DNS, DHCP, Certificate Services).
• Active Directory Administration: Oversee end-to-end AD operations, including Group Policy (GPO), Sites & Services, migrations, authentication mechanisms, and backup/recovery.
• AI & Automation: Develop, test, and maintain PowerShell runbooks to automate server provisioning, health checks, and remediation. Utilize AI tools for assisted scripting, log analysis, and anomaly detection.
• Security & Governance: Harden Windows environments and ensure strict compliance with institutional IT policies (e.g., SG-TRM, IM8). Manage automation scripts via secure version-control and change-management processes.
• Collaboration & Support: Act as the primary technical point of contact for new infrastructure initiatives. Create detailed technical documentation and drive knowledge transfer to operational teams.

Skills

Windows Server

Active Directory

Azure Cloud

PowerShell

AI/AIOps

Automation scripting

Root-cause analysis

Job description

About the Role

Design, manage, and automate secure Windows infrastructure and Active Directory environments, leveraging advanced PowerShell scripting and AI-assisted tools to streamline IT operations and reduce manual workloads.

Key Responsibilities

• Infrastructure Management: Provision, configure, and maintain on premise as well as Cloud environments: Windows VMs, high-availability clusters, and core server roles (DNS, DHCP, Certificate Services).
• Active Directory Administration: Oversee end-to-end AD operations, including Group Policy (GPO), Sites & Services, migrations, authentication mechanisms, and backup/recovery.
• AI & Automation: Develop, test, and maintain PowerShell runbooks to automate server provisioning, health checks, and remediation. Utilize AI tools for assisted scripting, log analysis, and anomaly detection.
• Security & Governance: Harden Windows environments and ensure strict compliance with institutional IT policies (e.g., SG-TRM, IM8). Manage automation scripts via secure version-control and change-management processes.
• Collaboration & Support: Act as the primary technical point of contact for new infrastructure initiatives. Create detailed technical documentation and drive knowledge transfer to operational teams.

Qualifications & Skills

• Strong hands-on background in Windows Server and Microsoft Active Directory engineering.
• Strong experience in Azure and GCC Cloud environments
• Advanced proficiency in PowerShell scripting and translating manual operational processes into reliable, repeatable automation.
• Practical experience integrating AI tools or AIOps platforms into infrastructure operations and troubleshooting.
• Deep expertise in root-cause analysis, complex system troubleshooting, and supporting highly available, secure environments.
• Experience with GCC Active Directory and Remote Desktop Services integration.