The posting
Key Responsibility:
Windows Server & Infrastructure Administration
- Perform advanced administration, configuration, troubleshooting, and maintenance of Microsoft Windows Server 2012/2016/2019 environments.
- Manage enterprise Windows server infrastructure including server builds, configuration, upgrades, performance tuning, and lifecycle management.
- Monitor server availability, performance, capacity, and system health to ensure compliance with operational and availability requirements.
- Diagnose and resolve complex Windows operating system, hardware, system services, and infrastructure-related incidents.
- Perform system health checks and proactively identify potential infrastructure issues before they impact business operations.
- Support physical and virtual server environments, including hardware components, storage, system resources, and server dependencies.
- Participate in infrastructure upgrades, technology refresh, server migration, consolidation, and decommissioning activities.
Active Directory & Identity Management
- Provide advanced administration and operational support for Microsoft Active Directory environments.
- Manage and troubleshoot Active Directory components including users, groups, computers, Organizational Units (OUs), Group Policy Objects (GPOs), authentication, permissions, and domain services.
- Perform investigation and resolution of complex AD-related issues involving authentication, access, replication, policies, and domain connectivity.
- Support Active Directory security and administration best practices, including access control and privileged account management.
- Assist with AD restructuring, domain migrations, policy changes, and infrastructure enhancement initiatives.
- Identify opportunities to automate repetitive Active Directory administration and operational tasks.
PowerShell & Automation
- Develop and maintain PowerShell scripts to automate system administration, monitoring, reporting, configuration, maintenance, and operational activities.
- Automate repetitive Windows Server and Active Directory tasks to improve operational efficiency and reduce manual intervention.
- Develop scripts for server health checks, user/account administration, system information gathering, patch validation, service monitoring, and operational reporting.
- Troubleshoot and enhance existing automation scripts while ensuring appropriate error handling, logging, and operational controls.
- Identify opportunities to introduce automation and standardisation into infrastructure support processes.
Server Patching & Security
- Plan, coordinate, and execute Windows Server patching activities in accordance with security requirements, change management procedures, and agreed maintenance windows.
- Perform pre- and post-patch validation to ensure system stability and application availability.
- Investigate patch-related issues and coordinate remediation with relevant infrastructure and application teams.
- Maintain patch compliance and provide accurate operational reporting.
- Support vulnerability remediation and infrastructure hardening activities where required.
- Ensure infrastructure changes are implemented in accordance with approved change management and security procedures.
Server Management & Monitoring Tools
- Administer and utilise enterprise server management, monitoring, deployment, and remote administration tools.
- Monitor infrastructure alerts and events, perform initial investigation, and take appropriate corrective actions.
- Support deployment and configuration management activities across Windows server environments.
- Maintain accurate system configuration information, operational records, and infrastructure documentation.
- Where applicable, utilise Altiris and other enterprise management tools for software deployment, configuration, inventory, patching, and endpoint/server management.
Storage & Hardware Infrastructure
- Demonstrate working knowledge of enterprise server storage technologies and RAID configurations, including RAID 0+1, RAID 1, RAID 5 and other commonly used RAID technologies.
- Troubleshoot server hardware, storage, disk, and RAID-related issues.
- Perform basic analysis of storage performance, capacity, disk health, and redundancy.
- Work with hardware and infrastructure vendors for complex hardware and storage-related incidents.
- Support hardware replacement, server maintenance, and infrastructure refresh activities.
Incident, Problem & Service Management
- Provide Level 2/Level 3 technical support for complex Windows infrastructure and Active Directory incidents.
- Manage incidents in accordance with defined Service Level Agreements (SLAs) and operational priorities.
- Perform detailed troubleshooting, root cause analysis, and problem resolution for recurring or high-impact infrastructure issues.
- Participate in major incident resolution and provide timely technical updates to relevant stakeholders.
- Maintain accurate incident, problem, change, and knowledge records within enterprise ticketing systems such as HP Service Manager / ServiceNow or equivalent platforms.
- Ensure incidents are properly documented, tracked, escalated, and resolved within agreed service levels.
- Participate in problem management activities and recommend preventive measures to minimise recurring incidents.
Change & Release Management
- Implement infrastructure changes in accordance with established ITIL and change management processes.
- Prepare technical implementation plans, risk assessments, rollback plans, and validation procedures for infrastructure changes.
- Support scheduled maintenance activities and planned service outages.
- Ensure all changes are appropriately documented and approved before implementation.
- Participate in post-implementation reviews and contribute to continuous improvement of change processes.
Operational Support & Shift Operations
- Provide infrastructure support within a 24x7 / shift-based operational environment, where required.
- Perform monitoring, incident response, scheduled maintenance, system checks, and operational activities during assigned shifts.
- Participate in on-call or after-hours support arrangements where applicable.
- Ensure effective handover of outstanding incidents, operational issues, and planned activities between shifts.
- Respond effectively to changing priorities and operational requirements in a dynamic technology environment.
Documentation & Continuous Improvement
- Develop and maintain technical documentation including operational procedures, troubleshooting guides, system runbooks, knowledge articles, and infrastructure documentation.
- Identify opportunities to improve infrastructure reliability, operational efficiency, automation, and service quality.
- Contribute to the development and improvement of standard operating procedures and technical support processes.
- Share technical knowledge and provide guidance to junior engineers and other support teams where required.
- Maintain awareness of current Windows infrastructure technologies, security practices, automation techniques, and operational best practices.
Requirements
- Diploma/Degree in Computer Science, Information Technology, Computer Engineering, or a related discipline.
- Minimum 5–8 years of hands-on experience in Windows Server / Infrastructure Administration, preferably within an enterprise environment.
- Strong hands-on experience with Microsoft Windows Server 2012, 2016 and/or 2019.
- Strong knowledge and practical experience in Microsoft Active Directory administration and troubleshooting.
- Good understanding of Group Policy, DNS, DHCP, authentication, permissions, domain services, and Windows infrastructure dependencies.
- Strong PowerShell scripting skills with experience in infrastructure automation.
- Hands-on experience with Windows Server patching, maintenance, upgrades, and troubleshooting.
- Experience working with enterprise server management, monitoring, deployment, and configuration management tools.
- Knowledge of RAID technologies, including RAID 0+1, RAID 1, RAID 5 and other storage configurations.
- Experience with Altiris and/or similar enterprise management tools will be advantageous.
- Experience with enterprise ticketing and IT service management tools, such as HP Service Manager, ServiceNow, or equivalent.
- Good understanding and awareness of ITIL processes, particularly Incident, Problem, Change, Request and Service Management.
- Experience working in an SLA-driven IT operations environment with defined response and resolution targets.
- Strong troubleshooting, analytical, and problem-solving skills.
- Experience supporting enterprise infrastructure in a highly controlled and security-conscious environment will be an advantage.
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PERSOL Tech Services Pte Ltd
UEN No. 202233837K
