Senior Windows Server Administrator

Work Type : Contract

Work Mode : Complete Work from office (Onsite)

Location : Bangalore, Electronic city - Phase I

Position Summary

We are seeking a highly skilled Senior Windows Server Administrator to manage, optimize, and support enterprise-grade Windows infrastructure across global environments. The role requires deep expertise in Windows Server, Active Directory, virtualization, infrastructure operations, and data center fundamentals, with a strong focus on reliability, security, and performance.

This position operates within a global IT support model, providing L3 support, driving operational excellence, and supporting modernization initiatives including cloud readiness and automation.

Key Responsibilities

Windows Server & Infrastructure Management

• Administer and support Windows Server 2016/2019/2022 and later versions across distributed environments
• Manage Windows Server roles and features, including file/print services and system services
• Perform server provisioning, patching, upgrades, and lifecycle management (physical and virtual)
• Manage RDP and remote server administration activities

Active Directory & Identity Management

• Administer Active Directory Domain Services (AD DS) environments
• Manage users, groups, OUs, and delegation models
• Design and troubleshoot Group Policy Objects (GPOs) for security and performance optimization
• Maintain NTFS and share permissions, ensuring strong access control design

Core Infrastructure Services

• Manage and troubleshoot:

• DNS, DHCP, NTP, and Certificate Services

• Windows services, registry, scheduled tasks, local security policies

• Perform advanced troubleshooting using Event Viewer and log analysis techniques

Virtualization & Data Center Operations

• Administer and manage VMware / virtualization platforms
• Handle VM provisioning, cloning, and automation workflows
• Support physical server provisioning and OS deployment

Hardware & System-Level Expertise

• Utilize hardware management tools:

• HPE iLO, Dell iDRAC, Lenovo XClarity

• Perform:

• BIOS/firmware checks and updates

• RAID/storage controller configuration basics

• NIC teaming and hardware-level troubleshooting

• Understand rack/stack operations and datacenter best practices

High Availability & Performance Optimization

• Implement and manage Windows Failover Clustering
• Perform performance tuning and system resource optimization
• Troubleshoot system issues including CPU, memory, disk, and network bottlenecks

Networking & Infrastructure Fundamentals

• Apply core networking principles (IP addressing, DNS resolution, connectivity troubleshooting)
• Collaborate with network teams for infrastructure issue resolution

Backup, DR, and Compliance

• Design and support backup and recovery solutions
• Participate in Disaster Recovery (DR) planning and testing
• Ensure adherence to enterprise security, audit, and compliance standards

Monitoring, Automation & Operations

• Work with monitoring tools like:

• SCOM, Zabbix, SolarWinds, or equivalent

• Ensure proactive alerting, incident response, and root cause analysis

• Drive automation using scripting (PowerShell preferred)

• Support ITIL processes: incident, problem, change management

Cloud & Modernization

• Contribute to cloud readiness initiatives (Azure exposure preferred)
• Support hybrid infrastructure models and migration readiness

Required Skills & Experience

• Bachelors degree in Information Technology, Computer Science, or equivalent

• 812+ years of relevant experience in enterprise Windows Infrastructure

• Strong hands-on expertise in:

• Windows Server (2016/2019/2022)

• Active Directory, GPO, DNS, DHCP

• VMware / virtualization platforms

• Failover clustering and high availability

• Backup & DR concepts

• Performance tuning and troubleshooting

• Strong experience with:

• Hardware-level troubleshooting and server management tools

• Monitoring tools and proactive operations management

• Solid understanding of data center operations and networking fundamentals

• Experience working in global support environments (24x7/on-call)

Preferred Qualifications

• Certifications (preferred but not mandatory):

• Microsoft Certified (Windows Server / Azure)

• VMware Certification

• ITIL Foundation

• Exposure to:

• Azure infrastructure and hybrid cloud

• Automation frameworks and scripting (PowerShell advanced level)