Computer Systems Administrator

Flare Consulting Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Flare Consulting Pte Ltd is seeking a Senior Windows Infrastructure Engineer to join the infrastructure operations team. You will be the subject matter expert for the bank’s Windows servers, Hyper-V, and clustered environments, leading complex troubleshooting and DR readiness in a production setting.

This role involves rotating shifts covering Europe hours with on-call duties. Responsibilities include managing Windows Server environments, Hyper-V and Failover Clustering, data centre hardware,

Qualifications

• 8–10 years managing Windows Server environments.
• 3–5 years in a bank or financial institution.
• Subject matter expert in Windows Server OS, Hyper-V and Failover Clustering.

Responsibilities

• Manage Windows Server environments (2012/2016/2019/2022) as SME.
• Administer Hyper-V virtualization and Failover Clustering; support VMware when required.
• Provide hands-on data centre and hyper-converged hardware support (HPE, SimpliVity, Alletra).
• Diagnose performance issues across network, storage and applications.
• Carry out server deployments, patching and vulnerability remediation.
• Manage Active Directory: groups, users, permissions.
• Automate tasks with PowerShell and Python.
• Plan and execute BCP/DR exercises and service failovers.
• Lead or contribute to infra projects and deployments.
• Deliver ITIL-aligned production support (incidents, problems, changes).

Skills

Hyper-V

Failover Clustering

PowerShell

Python

Windows Server OS

BCP/DR

Communication

Banking experience

Education

Bachelor’s degree in Engineering or Computer Science

Tools

Altiris

BMC

Tivoli

HP OMI

HPE Synergy

Cisco UCS

Dell VxRail

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.