Windows Administrator

Cognizant; Helsinki; On-site; EUR 70,000 - 95,000; Full time

Job summary

Cognizant Finland is seeking a seasoned Windows Administrator to join the Infrastructure and Digital Workplace Services team. The role focuses on Windows Server, AD, and core infrastructure, delivering reliable, secure operations and proactive patching in a large enterprise context.

You will oversee SCCM/WSUS, virtualization in VMware ESXi and Hyper-V, and automate tasks with PowerShell, while aligning with ITSM processes.

Qualifications

• 7-10+ years Windows Administrator in enterprise environments.
• Strong knowledge of Windows Server, AD, DNS, DHCP, GPO, IIS, SCCM, WSUS, PowerShell.
• Experience VMware ESXi/vSphere and Hyper-V.
• Backup and disaster recovery experience.
• Ability to work within ITSM controls (change, incident, problem, security, audit).
• Owns issues, with analytical troubleshooting and good documentation.

Responsibilities

• Install, configure, patch, and maintain Windows Server platforms.
• Administer AD, DNS, DHCP, GPO, IIS, certificates, and core Windows services.
• Manage SCCM/WSUS patching, remediation, compliance reporting.
• Support VMware ESXi and Hyper-V workloads, capacity and availability checks.
• Automate recurring tasks with PowerShell and orchestration tools.
• Perform backup, recovery, DR, incident, problem, and change activities via ITSM.
• Troubleshoot L2/L3 issues, contribute to root cause analysis, maintain SOPs/runbooks.
• Participate in on-call or 24x7 production support.

Skills

Windows Server & AD

DNS

DHCP

Group Policy & IIS

PowerShell

SCCM/WSUS

VMware ESXi / vSphere

Hyper-V

Backup & DR

ITSM / Change mgmt

Ownership & comms

Tools

VMware ESXi

vSphere

Hyper-V

SCCM

WSUS

PowerShell

Job description

Windows Administrator (d/f/m)

Permanent Employment – Finland

About Cognizant

Cognizant (Nasdaq-100:CTSH) is one of the world's leading professional services companies, transforming clients' business, operating and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant is ranked 194 on the Fortune 500 and is consistently listed among the most admired companies in the world. Learn how Cognizant helps clients lead with digital at www.cognizant.com or follow us @Cognizant.

About the Team / Business Unit

This role sits within our client's Infrastructure and Digital Workplace Services organisation, delivered by Cognizant as part of an updated enterprise support model. The team is responsible for the Windows & Server Infrastructure tower, working closely with security, service management, and business stakeholders to keep the client's technology estate resilient, secure, and future-ready across Finland.

About You:

You bring hands-on expertise across Windows Server, Active Directory, and core infrastructure services, with strong experience in patch management, virtualization platforms, and automation through PowerShell. You are comfortable troubleshooting complex L2/L3 issues and working within enterprise ITSM processes.

Your Key Result Areas:

• Install, configure, patch, and maintain supported Windows Server platforms.
• Administer Active Directory, DNS, DHCP, Group Policy, IIS, certificates, and core Windows services.
• Manage SCCM/WSUS patching, vulnerability remediation, configuration compliance, and exception reporting.
• Support VMware ESXi and Hyper-V hosted Windows workloads, including capacity and availability checks.
• Automate recurring administration tasks through PowerShell and approved orchestration tools.
• Execute backup, recovery, disaster recovery, incident, problem, and change activities through ITSM processes.
• Troubleshoot complex L2/L3 issues, contribute to root cause analysis, and maintain SOPs and runbooks.
• Participate in agreed on-call or 24x7 production support coverage.

Required & nice to have Skills:

Must Haves:

1. 7-10+ years of hands-on experience as a Windows Administrator (or equivalent Senior Administrator role) within enterprise infrastructure environments.
2. Strong working knowledge of Windows Server, Active Directory, DNS, DHCP, GPO, IIS and SCCM, WSUS, PowerShell.
3. Demonstrated experience in VMware ESXi / vSphere, Hyper-V.
4. Working knowledge of Backup and disaster recovery.
5. Ability to work within enterprise change, incident, problem, security, audit, and service management (ITSM) controls.
6. Strong ownership, analytical troubleshooting, stakeholder communication, and documentation discipline.

Nice to Have/ Your chance to grow

• Microsoft Windows Server or Azure Administrator
• VMware certification
• ITIL Foundation
• Opportunity to broaden exposure across ITSM, security and patch compliance and continuous improvement initiatives within the account.