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Open nowPosted today

Senior Windows Infrastructure Engineer

UNITECH CONSULTING PTE. LTD.

Pay
SGD 9,000 – SGD 10,300 a month
Where
Central, Singapore
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Your applicationOpen nowSenior Windows Infrastructure EngineerUNITECH CONSULTING PTE. LTD. · Central, Singapore

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The clock on this job

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13.3% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.6%3 days
  3. 13.3%7 days
  4. 21.3%14 days
  5. 35.7%30 days
  6. 59.1%60 days
This job: posted today

The posting

Job Summary:

We are seeking an experienced senior Windows infrastructure engineer to manage, maintain, and support enterprise Windows server infrastructure in a financial services environment. The role requires strong hands-on expertise in Windows Server administration, Hyper-V virtualization, Microsoft Failover Clustering, Active Directory, and enterprise server hardware.

The successful candidate will be responsible for infrastructure operations, server deployment, performance optimization, security patching, vulnerability remediation, disaster recovery, and production support. The candidate must be comfortable working in rotating shifts primarily covering European business hours, with rotational on-call support during weekdays and weekends.

Key Responsibilities:

  • Manage, administer, and troubleshoot enterprise Windows Server environments, including Windows Server 2012, 2016, 2019, and 2022.
  • Provide subject matter expertise in Microsoft Hyper-V virtualization and failover clustering technologies.
  • Manage and maintain VMware vSphere, ESXi, vCenter, and related virtualization platforms.
  • Administer Microsoft Active Directory, including user and group management, access controls, security permissions, and authentication.
  • Manage and support enterprise server hardware, including HPE ProLiant DL servers, HPE Synergy, HPE SimpliVity, and related data center infrastructure.
  • Perform server deployment, configuration, maintenance, upgrades, and infrastructure migrations.
  • Implement security patches, OS updates, and vulnerability remediation activities.
  • Conduct vulnerability assessments and coordinate remediation using tools such as Tenable/Nessus.
  • Monitor infrastructure performance, availability, and health using tools such as HP OMI, Tivoli, and other monitoring platforms.
  • Troubleshoot complex infrastructure issues involving Windows OS, virtualization, network, storage, and application dependencies.
  • Develop and maintain automation scripts using PowerShell, Python, Perl, and VBScript.
  • Support infrastructure backup, business continuity, and disaster recovery activities, including failover testing and service recovery.
  • Participate in infrastructure projects, solution deployment, upgrades, and technology transformation initiatives.
  • Work with internal teams, vendors, and stakeholders to resolve critical incidents and ensure service availability.
  • Follow ITIL-based incident, problem, change, and operational management processes.
  • Provide rotational on-call support during weekdays and weekends and work in rotating shifts primarily covering European business hours.

Job Requirements:

  • Minimum 8–10 years of relevant experience in Windows Server administration and enterprise infrastructure management.
  • Minimum 3–5 years of experience supporting IT infrastructure within banking or financial services institutions.
  • Strong hands-on expertise in Windows Server operating systems (2012/2016/2019/2022).
  • Expert-level knowledge of Microsoft Hyper-V and Failover Clustering.
  • Strong knowledge of VMware vSphere, ESXi, and vCenter technologies.
  • Hands-on experience with enterprise server hardware, preferably HPE ProLiant DL servers, HPE Synergy, and HPE SimpliVity.
  • Strong knowledge of Active Directory administration, user access management, and security permissions.
  • Experience in infrastructure security patching, vulnerability assessment, and remediation.
  • Hands-on scripting experience with PowerShell and Python; Perl and VBScript knowledge will be an advantage.
  • Experience with infrastructure monitoring, patch management, and deployment tools such as HP OMI, Tivoli, Altiris, and BMC.
  • Good understanding of infrastructure performance troubleshooting across network, storage, and application environments.
  • Experience in business continuity planning (BCP), disaster recovery planning (DRP), and infrastructure failover operations.
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Excellent communication and interpersonal skills, with a customer-service-oriented approach.
  • Ability to work independently and collaboratively under pressure.

Work Environment:

  • Working hours: Rotational shifts, primarily covering European business hours.
  • On-call support: Required on a rotational basis, including weekdays and weekends.

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