Senior Windows Server & AD Engineer | PowerShell Automation

jobline resources pte. ltd.; Singapore; On-site; SGD 70,000 - 120,000; Full time

Job summary

jobline resources pte. ltd.

in Singapore seeks a skilled Windows Server and infrastructure specialist to administer and maintain Windows Server environments, Active Directory, DNS, and Group Policy, while ensuring security, compliance, and reliable operations. You will perform server builds, patching, monitoring, incident resolution, and automation with PowerShell, contributing to continuous improvement and documentation.

Qualifications

• Strong hands-on experience in Windows Server 2016, 2019, and/or 2022 administration.
• Experience managing Active Directory, DNS, Group Policy, DHCP, and Certificate Authority services.
• PowerShell scripting experience for automation and operational support.
• Familiarity with IT service management processes such as incident, problem, change, and request management.
• Strong troubleshooting, documentation, and communication skills.

Responsibilities

• Administer and maintain Windows Server 2016, 2019, and 2022 environments.
• Perform server installation, configuration, patching, maintenance, backup checks, and troubleshooting.
• Monitor server health, performance, availability, and capacity.
• Support server upgrades, system refreshes, and lifecycle management activities.
• Analyse system logs, event logs, and performance data to identify and resolve technical issues.
• Maintain technical documentation, operational procedures, and configuration records.
• Manage and maintain Active Directory Domain Services, including user accounts, security groups, organisational units, permissions, and domain access.
• Administer and troubleshoot Group Policy Objects to enforce security settings, configuration standards, and operational requirements.
• Manage and support DNS services, including name resolution, zone management, records, replication, and troubleshooting.
• Support related core infrastructure services such as DHCP, Certificate Authority, authentication, and access control.
• Ensure Active Directory, DNS, and Group Policy configurations are secure, reliable, and properly documented.
• Apply security updates, server patches, and configuration changes in line with organisational standards.
• Perform server hardening and support vulnerability remediation activities.
• Review system and security logs to identify potential risks, misconfigurations, or suspicious activities.
• Ensure server, Active Directory, DNS, and Group Policy configurations comply with internal security policies and audit requirements.
• Support audit preparation, compliance reporting, and remediation of security findings.
• Provide Level 2 and Level 3 support for Windows server and infrastructure-related incidents.
• Troubleshoot issues involving servers, Active Directory, DNS, Group Policy, authentication, and access control.
• Perform root cause analysis for recurring or complex technical problems.
• Work with application, network, security, and service management teams to restore services and prevent recurrence.
• Support change management activities, including planning, implementation, validation, and post-change review.
• Work with security teams to address risks, resolve audit or vulnerability findings, and improve the organisation’s overall security posture.
• Develop and maintain PowerShell scripts to automate routine administrative tasks.
• Automate activities such as health checks, reporting, patch validation, log review, and account administration.
• Identify opportunities to improve operational efficiency, system reliability, and support processes.
• Contribute to infrastructure improvement, system integration, and modernisation initiatives.

Skills

Windows Server administration

Active Directory

DNS

Group Policy

PowerShell scripting

IT service management

Troubleshooting

Documentation

Security compliance

Tools

PowerShell

Job description

jobline resources pte. ltd.

in Singapore seeks a skilled Windows Server and infrastructure specialist to administer and maintain Windows Server environments, Active Directory, DNS, and Group Policy, while ensuring security, compliance, and reliable operations. You will perform server builds, patching, monitoring, incident resolution, and automation with PowerShell, contributing to continuous improvement and documentation.