Senior System Engineer - Windows (2 Year Contract)

MORGAN MCKINLEY PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Morgan McKinley Pte Ltd is seeking an experienced Senior System Engineer with hands-on expertise in Windows infrastructure, Active Directory, and automation.

The role focuses on designing, implementing, and supporting Windows server environments, driving efficiency through PowerShell automation and AI-assisted operations, while ensuring compliance with security and IT policies across critical business apps.

Qualifications

• Bachelor’s degree in Computer Science or equivalent.
• Hands-on experience with Active Directory, Windows Server, DNS/DHCP.
• Proficient in PowerShell scripting and automation.
• Experience applying AI tools in infrastructure operations (AIOps) is a plus.
• Knowledge of security hardening and IT policies.

Responsibilities

• Design, implement, and manage Windows infrastructure for availability, security, and capacity.
• Translate business requirements into Windows infrastructure solutions.
• Develop and maintain automation runbooks and PowerShell scripts.
• Automate server provisioning, AD administration, health checks, and remediation.
• Apply AI tools to improve troubleshooting and operational efficiency.

Skills

Active Directory

Windows Server

Group Policy

DNS

DHCP

Certificate Services

PowerShell

Automation

AI in IT ops

Troubleshooting

Education

Bachelor’s Degree in Computer Science or equivalent

Job description

Job Summary

We are seeking an experienced Senior System Engineer with strong hands‑on experience in Windows infrastructure, Microsoft Active Directory, technical automation and the practical application of AI tools to infrastructure operations.

The successful candidate will be responsible for designing, implementing, managing and supporting Windows server infrastructure, while actively driving operational efficiency through automation and AI‑assisted engineering. The engineer will identify repetitive operational activities that can be automated, develop and maintain automation scripts and runbooks, and apply AI tools to support troubleshooting, analysis and operational improvement.

This role requires a hands‑on engineer who can translate business and operational requirements into robust Windows infrastructure solutions while ensuring compliance with the technical standards, security requirements and IT policies. The position involves close collaboration with service providers, application teams and operations staff to deliver resilient and supportable Windows infrastructure for critical business applications.

Roles & Responsibilities

Windows Infrastructure Engineering

• Design, implement and manage Windows infrastructure to meet availability, continuity, security and capacity requirements.
• Translate business and application requirements into appropriate Windows infrastructure solutions.
• Provision, configure and maintain Windows virtual machines and supporting services.
• Support infrastructure architecture reviews, implementation planning, testing and operational readiness.
• Perform capacity planning, lifecycle management, maintenance, performance monitoring and troubleshooting.
• Act as the primary Windows infrastructure technical point of contact for new application and infrastructure initiatives.
• Work closely with application teams, infrastructure teams and service providers to resolve technical issues and support production operations.

AI & Technical Automation

• Drive Windows infrastructure operations and day‑to‑day task efficiencies through technical automation, with a focus on reducing repetitive manual activities and improving operational consistency.
• Design, develop, test and maintain PowerShell scripts and automation runbooks for Windows infrastructure administration and operations.
• Automate operational activities such as server provisioning and configuration, Active Directory administration, configuration and hardening checks, health checks, log collection, troubleshooting, reporting and remediation.
• Experience in deploying and working with AI tools applied to Windows infrastructure operations, including AI‑assisted scripting and troubleshooting, log and event analysis, anomaly detection and operational automation.
• Use AI‑assisted development tools to accelerate the development, testing and documentation of scripts and automation, while ensuring outputs are technically validated before production use.
• Identify suitable operational use cases and progressively convert manual procedures into controlled, repeatable and supportable automation runbooks.
• Develop automation with appropriate validation, logging, exception handling, security controls and rollback considerations.
• Maintain automation scripts and configuration artefacts using appropriate version‑control and change‑management practices.
• Continuously identify opportunities where AI and automation can improve infrastructure reliability, troubleshooting effectiveness and operational efficiency.

Qualifications

• Bachelor’s Degree in Computer Science or equivalent
• Strong hands‑on experience in Microsoft Active Directory, Windows Server, Group Policy, DNS, DHCP and Certificate Services administration and troubleshooting.
• Experience in PowerShell scripting and automation for Windows infrastructure administration, configuration management and operational processes.
• Knowledg of Active Directory backup and recovery, migration, upgrades, Sites and Services, Windows authentication, GCC AD, Remote Desktop Services, clustering and high availability.
• Experience in Windows security hardening, infrastructure troubleshooting and root‑cause analysis.
• Ability to apply AI tools in infrastructure operations, including AI‑assisted troubleshooting, scripting, analysis and anomaly detection; AIOps and configuration automation experience is an advantage.
• Ensure compliance with SG-TRM, IM8, IT policies and technical architecture, including change management, documentation, operational runbooks and knowledge transfer.
• Ability to work with internal teams and service providers to maintain secure, reliable and supportable Windows infrastructure.

Morgan McKinley Pte Ltd

Chew Kai-Xinn

EA Licence No: 11C5502

EAP Registration No: R2196712