Senior Windows Infrastructure Engineer

cornerstone global partners pte. ltd.; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

Cornerstone Global Partners is seeking an L3 support engineer to maintain and optimize enterprise Windows infrastructure, Active Directory, VMware, and Nutanix in a 24x7 managed services environment. You will participate in on-call rotation, incident response, and DR activities to ensure service levels.

The role requires strong experience with Windows Server administration, VMware ESXi/vCenter, and Entra ID operations, plus automation using PowerShell and Python.

Qualifications

• Experience in 24x7 enterprise IT support and incident management.
• Knowledge of AD and Entra ID operations is required.
• Familiarity with backup and disaster recovery processes.

Responsibilities

• Incident, problem and change management.
• RCA and KEDB management.
• Patching and vulnerability remediation.
• Lifecycle management and EOL/EOS tracking.
• Capacity and performance management.
• DR planning and execution.

Skills

Windows Server Administration

Active Directory Administration

VMware ESXi & vCenter

Nutanix Prism & AHV

Tools

SCCM

BigFix

Datadog

Grafana

AD Manager Plus

Quest Recovery Manager

PowerShell

Python

Terraform

Ansible

Job description

Provide L3 support for enterprise Windows infrastructure, VMware, Nutanix, Active Directory and Hybrid Identity services in a 24x7 managed services environment.

Support Coverage

24x7 operational support, shift rotation,on-call support, major incident management, SLA compliance and DR activities.

Technical Requirements

• Windows Server 2016/2019/2022Administration
• Active Directory, DNS, DHCP,DFS, GPO, ADFS, KMS, RDS
• VMware ESXi, vCenter, HA, DRS,vMotion
• Nutanix Prism, AHV, CVM, LCM
• SCCM, BigFix, Datadog, Grafana
• AD Manager Plus and QuestRecovery Manager

AD and Entra ID Responsibilities

• Azure AD / Entra ID Operations
• Conditional AccessAdministration
• Identity Governance
• RBAC Administration
• Access Certification ReviewsEntra Connect Management
• AD Recovery using QuestRecovery Manager
• AD Manager Plus Administration
• Security and Compliance Audits
• Hybrid Identity Management
• Certificate LifecycleManagement

Automation Skills

• Ansible Automation Platform
• Terraform Infrastructure asCode
• PowerShell Automation
• Python Scripting
• Workflow Automation
• Reusable Playbooks and IaCModules

Operational Responsibilities

• Incident, Problem and ChangeManagement
• RCA and KEDB Management
• Patching and VulnerabilityRemediation
• Lifecycle Management andEOL/EOS Tracking
• Capacity and PerformanceManagement
• DR Planning and Execution
• OEM Coordination
• Documentation, SOP and RunbookMaintenance

Preferred Certifications

• Microsoft Windows Server HybridAdministrator
• Microsoft Identity and AccessAdministrator
• VMware VCP/VCAP
• Nutanix NCP
• Red Hat Ansible Automation
• Hashicorp Terraform Associate
• ITIL Foundation

Cornerstone Global Partners (EA License Number: 19C9859) is an affirmative equal-opportunity employer and recruitment firm. We evaluate qualified applicants without regard to race, colour, religion, creed, gender, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class.