Wintel infrastructure architect

Wipro; Singapore; On-site; SGD 100,440 - 167,400; Full time

Job summary

Wipro Singapore is seeking a 24x7 on-call Infrastructure Engineer to provide Level 3 escalation for Wintel and Microsoft 365 services across multiple sites. The role focuses on RCA, preventive actions, and end-to-end incident resolution.

Responsibilities include AD/DNS/DHCP, SCCM, VMware vCenter/ESXi administration, Citrix environments, and Microsoft 365 Defender security management. You will also automate with PowerShell and document IT processes.

Qualifications

• Must have hands-on experience with Windows Server administration (various versions).
• Proficient in Active Directory, DNS, DHCP and Group Policy.
• Experience with VMware vCenter/ESXi, including clustering and DR.
• Familiarity with Microsoft 365 services and Defender security features.
• Experience with SCCM and Citrix environments.

Responsibilities

• Provide 24x7 on-call Level 3 escalation for infrastructure incidents and service requests.
• Perform RCA and implement corrective/preventive actions for major incidents.
• Administer AD Forests with multiple domains and sub-domains.
• Maintain VMware vSphere/vCenter, clusters, HA/DR, and vMotion.
• Manage Microsoft 365 services, Defender, and security configurations.
• Develop PowerShell scripts to automate operations and reporting.
• Create and maintain SOPs, architecture diagrams, and documentation.

Skills

Active Directory

DNS/DHCP

VMware vCenter/ESXi

SCCM

Microsoft 365 Admin

PowerShell

Group Policy

Disaster Recovery

Citrix ADC

PKI

Education

Bachelor's degree in IT/Computing

Tools

SCCM

VMware vCenter

Citrix

PowerShell

Windows Server

Job description

Provide 24x7 on-call support for Wintel infrastructure and Microsoft 365 services across multiple sites.

About the Role

Act as the primary Level 3 escalation point for infrastructure related incidents and service requests.

Responsibilities

• Perform Root Cause Analysis (RCA) and implement corrective and preventive actions for major incidents.
• Administer enterprise Active Directory Forest environments with multiple domains and sub-domains.
• Troubleshoot Active Directory, DNS, DHCP, Group Policy and replication related issues.
• Implement, configure and administer Microsoft Configuration Manager (SCCM) environments.
• Design, implement and maintain VMware vSphere Foundation (VVF) 9.x and vCenter 7.X infrastructure including vCenter Server, ESXi hosts, clusters, HA, DRS, Datastores and vMotion.
• Perform VMware lifecycle management, upgrades, patching, migrations and disaster recovery activities.
• Manage and maintain Microsoft 365 services including Exchange Online, SharePoint Online, Teams and OneDrive.
• Administer Microsoft 365 Defender, email security, SPF, DKIM and DMARC configurations.
• Configure, administer and troubleshoot Citrix ADC and Citrix Virtual Apps environments.
• Administer and maintain enterprise Antivirus and Endpoint Security solutions.
• Configure and maintain Data Loss Prevention (DLP) solutions and policies.
• Administer and maintain Public Key Infrastructure (PKI), Certificate Services and certificate lifecycle management.
• Create, configure and maintain Group Policy Objects (GPO) for operational, security and compliance requirements.
• Manage Windows Failover Clusters supporting SQL and application environments.
• Administer Print Servers and enterprise file sharing services.
• Manage Windows Server upgrades, migrations, patching and lifecycle management.
• Manage and maintain enterprise datacentre infrastructure including physical Dell PowerEdge servers and infrastructure appliances.
• Perform server hardware troubleshooting, firmware upgrades, hardware refresh and lifecycle management activities.
• Perform datacentre operations, disaster recovery testing, failover exercises and infrastructure maintenance activities.
• Develop and maintain PowerShell automation scripts to improve operational efficiency and reporting.
• Maintain technical documentation, SOPs, architecture diagrams and operational standards.
• Provide technical guidance, knowledge transfer and support to L1/L2 support teams.
• Support End User Computing Team when any issues are escalated and need support for L2/L3.

Qualifications

Strong hands-on experience in Windows Server Administration (2008/2012/2016/2019/2022/2025).

Required Skills

• Strong hands-on experience in Active Directory, DNS, DHCP and Group Policy.
• Strong hands-on experience in VMware vCenter Server and ESXi Administration.
• Strong hands-on experience in VMware HA, DRS, vMotion and Cluster Management.
• Strong hands-on experience in Citrix ADC and Citrix Virtual Apps Administration.
• Strong hands-on experience in Microsoft Configuration Manager (SCCM).
• Strong hands-on experience in Microsoft Office 365 Administration including Exchange Online, SharePoint Online, Teams and OneDrive.
• Good understanding of Microsoft 365 Defender, SPF, DKIM and DMARC.

Preferred Skills

None specified.

Pay range and compensation package

None specified.

Equal Opportunity Statement

We are committed to diversity and inclusivity.