Windows ICT Infrastructure Engineer (AI & Technical Automation)

NTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

NTT Singapore PTE. LTD. seeks an experienced Windows ICT Infrastructure Engineer to design, implement and manage Windows server infrastructure, with strong hands-on AD, security, and automation focus.

The role emphasizes AI-assisted engineering and automation to improve operational efficiency in Windows environments. You will collaborate with service providers, application teams and operations staff to deliver resilient, scalable Windows infrastructure for critical business applications,

Qualifications

• Strong hands-on knowledge of Microsoft Active Directory administration and troubleshooting.
• Experience with Active Directory backup and recovery.
• Proficient in Group Policy creation and troubleshooting.
• Experience with AD migration and upgrade planning.
• Understanding Windows authentication/authorisation mechanisms.
• Knowledge of AD Sites and Services design and configuration.
• Experience with GCC AD and RD Services integration.
• Proficient in Windows Server roles and features (DNS, DHCP, Certificate Services).
• Experience with Windows clustering and high availability configurations.
• Proficient in PowerShell scripting and automation.

Responsibilities

• Design, implement and manage Windows server infrastructure to meet availability, security and capacity requirements.
• Translate business needs into robust Windows infrastructure solutions.
• Provision, configure and maintain Windows VMs and supporting services.
• Support architecture reviews, planning, testing and operational readiness.
• Perform capacity planning, lifecycle management, maintenance and monitoring.
• Serve as the primary Windows infrastructure technical point of contact for new initiatives.
• Collaborate with application teams, infrastructure teams and service providers to resolve issues.

Skills

Active Directory administration

Group Policy

PowerShell scripting

Windows Server administration

AD migration

Windows security hardening

Troubleshooting Windows Server

AD Sites and Services

Remote Desktop Services

DNS/DHCP/Certificate Services

Job description

We are seeking an experienced Windows ICT Infrastructure 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 Authority's 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.

Key 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.

Security, Governance & Operational Readiness

• Ensure Windows infrastructure solutions comply with the Authority's Technical Architecture, SG-TRM, IM8 and applicable Authority IT policies.
• Ensure automation is appropriately tested, documented and implemented through established change-management processes.
• Maintain technical documentation, operational procedures and automation runbooks.
• Support operational readiness and knowledge transfer to operations teams and service providers.
• Ensure Windows infrastructure configurations remain secure, controlled and supportable throughout their lifecycle.

Desired Skills and Experience

• Strong hands-on knowledge and experience are required in:
  • Microsoft Active Directory administration and troubleshooting.
  • Active Directory backup and recovery.
  • Group Policy creation, implementation and troubleshooting.
  • Active Directory migration and upgrade planning.
  • Windows authentication and authorisation mechanisms.
  • Active Directory Sites and Services design and configuration.
  • GCC Active Directory and Remote Desktop Services integration.
  • Windows Server roles and features including DNS, DHCP and Certificate Services.
  • Windows clustering and high-availability configurations.
  • PowerShell scripting and automation.
  • Windows security hardening and configuration management.
  • Troubleshooting complex Windows Server and Active Directory issues.