Windows Administrator – Patch Management

Oct 15, 2026

HCL SINGAPORE PTE. LTD. Windows Administrator – Patch Management

Main purpose of the role:

To be responsible for the patching and vulnerability management of all Windows Server, VMWare ESXi.

Roles & Responsibilities

System Administration of Windows/VMWare environment.
Extensive Experience in ESXi patching.
Perform Patch assessment and recommend/plan deployment.
To perform patching of ESXi, VMWare using the Tools that customer have with SOP based approach.
Monitor systems to ensure all patching is completed successfully and track patch management metrics, producing reports on compliance & effectiveness.
To perform some basic task on VM using Vcenter.
To escalate on all major patching and any other issues to L2/L3 teams where appropriate.
To raise appropriate changes in order for patch implementation and adhere to internal Change Control and ITIL standards.
To ensure all communications on patch schedule, change planning & approval are done with Apps/Business Owners.
To carry out any other task associated with the role as reasonably requested.
Bios upgrades and firmware upgrades.
Log monitoring/maintenance.

Skills Required

Bachelor's Degree in Information Technology.
9-12 years of experience in Windows System Administration.
Excellent Verbal and written communication skills.
Good interpersonal Skills.
The candidate should have worked in a SLA driven environment.
Ability to work in a flexible, team-oriented and constantly changing environment.
Able to work on weekends as per Roster and perform On-call support (during weekdays) as and when needed.
Knowledge on Active Directory Management (OU/GPO/Forest and domain config and etc).
Experience on Patch management tools like BigFix, SCCM etc.
Experience on Automation of Pre and Post patching tasks.
Hand-on knowledge on various RAID technologies (RAID 0+1, RAID 1, RAID 5 etc.) (Should have basic knowledge)
Knowledge on Clustering (geo cluster, multinodes passive/active) ( Should have basic knowledge

Must Have Skills

Skills