Senior Systems Engineer (Wintel, Cloud)

Tangspac Consulting Group; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

Tangspac Consulting Group seeks a skilled Windows Systems Administrator to join their infrastructure team in Singapore. You will design, deploy, and harden Windows Server environments across physical and virtual infrastructures, ensuring high availability, security, and regulatory compliance for core banking platforms.

Collaborating with application, security, and network teams, you will automate operations with PowerShell and IaC, manage VMware ESXi/vCenter, and maintain Active Directory, DNS,

Qualifications

• 5+ years of hands-on experience as a Windows Systems Engineer or similar infrastructure role.
• Advanced working knowledge of Windows Server 2016/2019/2022 and Cloud
• Strong proficiency in PowerShell for automation (scripting, deployment, monitoring, IaC)
• Solid understanding of Active Directory, DNS, and Group Policy management
• Proven experience with VMware (vSphere, ESXi, vCenter) in production environments
• Demonstrated ability to troubleshoot OS crashes, performance bottlenecks, application compatibility issues, and hardware failures
• Experience with hardware monitoring tools and performance tuning in both physical and virtualized environments
• Strong analytical and problem-solving skills, with the ability to work calmly under pressure in fast-paced production environments
• Excellent verbal and written communication skills, with a strong customer service orientation

Responsibilities

• Design, configure, and maintain Microsoft Windows Server environments (2016/2019/2022) and cloud environments in highly available, regulated settings
• Manage and optimize VMware virtualization infrastructure, including ESXi hosts, vCenter, and virtual machine lifecycle
• Administer core directory and authentication services including Active Directory, Kerberos, DNS, and Group Policy
• Automate routine tasks, deployment, configuration, infrastructure-as-code (IaC), and system monitoring using PowerShell (or Python/C#)
• Troubleshoot complex operating system and application issues, performing root cause analysis and implementing permanent fixes
• Monitor hardware health and perform performance tuning across physical servers and virtual machines
• Partner with security teams to apply patches, remediate vulnerabilities, and ensure compliance with internal policies and regulatory standards
• Provide clear and timely communication to stakeholders, maintaining a high degree of customer service for all technical queries and incident escalations

Skills

PowerShell

Automation

Windows Server

Active Directory

DNS

Group Policy

VMware ESXi

vCenter

Python

C#

Cloud understanding

Communication

Tools

VMware ESXi

vCenter

Windows Server

Active Directory

Job description

A Financial institution is seeking a skilled and proactiveWindows and Cloud Systems Administrator to join their infrastructure team. In this role, you will be responsible for the design, deployment, hardening, and ongoing support of mission-critical Windows-based systems across physical and virtual environments. You will work closely with application, security, and network teams to ensure high availability, performance, and security compliance for enterprise banking and payment platforms.

Key Responsibilities

• Design, configure, and maintainMicrosoft Windows Server 2016/2019/2022 and Cloudenvironments in a highly available, regulated setting

• Manage and optimizeVMwarevirtualization infrastructure, including ESXi hosts, vCenter, and virtual machine lifecycle

• Administer core directory and authentication services includingActive Directory,Kerberos,DNS, andGroup Policy

• Automate routine tasks, deployment, configuration, infrastructure-as-code (IaC), and system monitoring usingPowerShell(or Python/C#)

• Troubleshoot complex operating system and application issues, performing root cause analysis and implementing permanent fixes

• Monitor hardware health and perform performance tuning across physical servers and virtual machines

• Partner with security teams to apply patches, remediate vulnerabilities, and ensure compliance with internal policies and regulatory standards

• Provide clear and timely communication to stakeholders, maintaining a high degree of customer service for all technical queries and incident escalations

Required Qualifications & Experience

• 5+ yearsof hands-on experience as a Windows Systems Engineer or similar infrastructure role

• Advanced working knowledge ofMicrosoft Windows Server 2016/2019/2022and Cloud

• Strong proficiency inPowerShellfor automation (scripting, deployment, monitoring, IaC)

• Solid understanding ofActive Directory,DNS, andGroup Policymanagement

• Proven experience withVMware(vSphere, ESXi, vCenter) in production environments

• Demonstrated ability to troubleshoot OS crashes, performance bottlenecks, application compatibility issues, and hardware failures

• Experience with hardware monitoring tools and performance tuning in both physical and virtualized environments

• Strong analytical and problem-solving skills, with the ability to work calmly under pressure in fast-paced production environments

• Excellent verbal and written communication skills, with a strong customer service orientation