Computer Systems Administrator

Flare Consulting; Singapore; On-site; SGD 150,000 - 210,000; Full time

Job summary

Flare Consulting seeks a Senior Windows Infrastructure Engineer to own Windows server, Hyper‑V and clustered environments within a banking IT operations team. You will lead complex troubleshooting, project deployments and DR readiness in production, with rotating shifts covering Europe hours and weekday/weekend on‑call support.

You will manage AD, automate tasks with PowerShell/Python, and contribute to ITIL‑driven incident, change and problem management, while collaborating on multi‑vendor

Qualifications

• Bachelor’s degree in Engineering, Computer Science or a related field.
• 8–10 years of experience managing Windows server environments, including 3–5 years in a bank or financial institution.
• Subject matter expertise in Windows Server OS, Hyper‑V and Microsoft Failover Clustering.
• Hands‑on experience with HPE server and hyper‑converged hardware; Cisco UCS, Dell VxRail or Nutanix is also relevant.
• Strong scripting skills in PowerShell and Python; Perl or VBScript is a plus.
• Proven experience executing BCP/DR failovers.
• Experience with patching and deployment tools such as Altiris or BMC.
• Experience with monitoring tools such as HP OMI or Tivoli.

Responsibilities

• Manage, maintain and troubleshoot Windows Server environments (2012/2016/2019/2022) as SME.
• Administer Hyper‑V virtualization and Microsoft Failover Clustering; support VMware as needed.
• Provide hands‑on support for data center hardware including HPE Synergy, SimpliVity, Alletra and DL/BL series.
• Diagnose and fix complex performance issues across network, storage and apps.
• Carry out server deployments, security patching and vulnerability remediation from scans.
• Manage Active Directory including groups, user access, and share and security permissions.
• Automate operational tasks using PowerShell, Python and workflow tools.
• Plan and execute BCP/DR exercises with service failovers.
• Lead or contribute to infrastructure projects and deployments.
• Deliver ITIL‑aligned production support including incident, problem and change management.

Skills

Windows Server

Hyper-V

Failover Clustering

PowerShell

Python

Active Directory

Education

Bachelor's degree in Engineering/Computer Science or related field

Tools

VMware vSphere

vCenter

vROps

vRLI

HPE server hardware

Dell VxRail

Nutanix

Cisco UCS

Job description

Senior Windows Infrastructure Engineer (Hyper‑V / Failover Clustering) – Banking

About the Role

We are looking for a Senior Windows Infrastructure Engineer to join infrastructure operations team. You will be the subject matter expert for the bank’s Windows server, Hyper‑V and clustered environments. You will lead complex troubleshooting, project deployments and DR readiness in a mission‑critical production setting. This role works rotating shifts that mainly cover Europe business hours. It also includes a weekday and weekend on-call rotation.

Key Responsibilities

• Manage, maintain and troubleshoot Windows Server environments (2012 / 2016 / 2019 / 2022) as the SME.
• Administer and support Hyper‑V virtualisation and Microsoft Failover Clustering. Support VMware environments where required.
• Provide hands‑on support for data centre and hyper‑converged hardware, including HPE Synergy, SimpliVity, Alletra and DL/BL series.
• Diagnose and fix complex performanceissues across network, storage and application layers.
• Carry out server deployments, security patching and vulnerability remediation from Tenable/Nessus scans.
• Manage Active Directory, including groups, user access, and share and security permissions.
• Automate operational tasks using PowerShell, Python and workflow integration tools.
• Plan and execute BCP/DR exercises, including service failovers.
• Lead or contribute to infrastructure projects and solution deployments.
• Deliver ITIL‑aligned production support, including incident, problem and change management.

Requirements

• Bachelor’s degree in Engineering, Computer Science or a related field.
• 8–10 years of experience managing Windows server environments, including at least 3–5 years in a bank or financial institution.
• Subject matter expertise in Windows Server OS, Hyper‑V and Microsoft Failover Clustering.
• Hands‑on experience with HPE server and hyper‑converged hardware. Cisco UCS, Dell VxRail or Nutanix experience is also relevant.
• Strong scripting skills in PowerShell and Python. Perl or VBScript is a plus.
• Proven experience executing BCP/DR failovers.
• Experience with patching and deployment tools such as Altiris or BMC.
• Experience with monitoring tools such as HP OMI or Tivoli.
• Strong problem‑solving skills across multiple technologies.
• Excellent communication skills and a customer-service orientation.
• Ability to perform under pressure as part of a close‑knit team.
• Willingness to work rotating shifts (Europe hours) and take part in on‑call support.

Good to Have

• VMware vSphere, vCenter, vROps and vRLI.
• ITIL certification.
• Microsoft, VMware or HPE certifications.