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Tech Mahindra Logo Tech Mahindra · IT - Software Development

Windows Administrator L3

India, Hyderabad Employment contract · Job Posted May 05, 2026
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Job Description

The Windows Server Engineer (L3) is a senior technical role responsible for designing, implementing, optimizing, and supporting enterprise-level Windows Server infrastructure. This engineer handles major incidents, deep troubleshooting, automation, lifecycle management, and provides guidance to L1/L2 teams. The role requires extensive expertise across Active Directory, DNS/DHCP, DFS, Group Policy, virtualization, clustering, security, and Microsoft infrastructure services.

Job Responsibility

  • Install, configure, and manage Windows Server 2016/2019/2022 environments
  • Perform OS hardening, patching, and lifecycle management
  • Manage server roles such as AD DS, DNS, DHCP, Distributed File Services, IIS, Print Services, etc.
  • Design and manage Group Policies, OU structures, and access control
  • Support ADFS, Azure AD Connect, and SSO integrations
  • Build and support Windows Failover Clusters
  • Manage Hyper V, cluster shared volumes (CSV), and storage configurations
  • Troubleshoot high availability, quorum, and cluster resource issues
  • Administer Hyper V and VMware vSphere environments (preferred)
  • Implement and monitor server security baselines and hardening policies
  • Manage BitLocker, Windows Defender, firewall rules, and auditing
  • Ensure compliance with organizational standards (SOX, HIPAA, PCI, etc.)
  • Create scripts using PowerShell for automation, reporting, and configuration tasks
  • Tune performance for CPU, memory, disk I/O, and network bottlenecks
  • Manage monitoring tools such as SCOM, SolarWinds, LogicMonitor, etc.
  • Serve as Level 3 escalation for critical and complex server issues
  • Perform root cause analysis (RCA/PCA)
  • Implement preventive measures and improve processes
  • Participate in 24x7 on-call rotation as required
  • Prepare SOPs, architecture diagrams, knowledge articles, and change documentation
  • Mentor L1/L2 teams and provide technical leadership across projects

Requirements

  • 8+ years of hands-on experience in enterprise Windows Server environments
  • Expert knowledge of Windows Server OS (2016-2022)
  • Expert knowledge of Active Directory, DNS, DHCP
  • Expert knowledge of Group Policy
  • Expert knowledge of Failover Clustering
  • Expert knowledge of PowerShell automation
  • Strong understanding of TCP/IP networking
  • Strong understanding of PKI / Certificates
  • Strong understanding of Storage (SAN/NAS)
  • Strong understanding of VMware and Hyper V
  • Windows Server Administration Certification is preferred
  • Working experience on ServiceNow
  • ITSM Best Practices
  • Healthcare industry experience is a plus
  • Knowledge of data center operations and best practices
  • A team player with a positive attitude and excellent interpersonal skills
  • Ability to understand and comply with business processes and procedures
  • Ability to work in a fast paced, dynamic environment
  • Collaboration with cross functional teams between onshore and offshore

Nice to have

  • Windows Server Administration Certification
  • Healthcare industry experience
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