SeniorAdministrator - MS Windows,Endpoint Management,Hyper-V,MS Cluster Server
India
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Job Description
SeniorAdministrator - MS Windows,Endpoint Management,Hyper-V,MS Cluster Server
Noida, Uttar Pradesh

Job Summary

We are looking for an experienced Compute – Windows L2 Engineer with 5–7 years of hands-on experience in managing and supporting enterprise Windows infrastructure across on-premises and cloud environments. The role is responsible for advanced troubleshooting, administration, maintenance, patching, performance optimization, and operational support of Windows Server environments. The engineer will manage escalations from L1 teams, perform root cause analysis, execute infrastructure changes, support virtualization and cloud-hosted Windows workloads, and contribute to automation and continuous improvement initiatives. The ideal candidate should have strong knowledge of Windows Server, Active Directory, DNS, DHCP, Group Policy, PowerShell, VMware/Hyper-V, Microsoft Azure and/or AWS, along with experience working within ITIL-based enterprise support environments.

Key Responsibilities

Windows Server Administration Administer and support enterprise Windows Server environments, including Windows Server 2016/2019/2022 and associated services. Perform server provisioning, configuration, maintenance, upgrades, decommissioning, and operational health checks. Troubleshoot complex OS, performance, service, connectivity, storage, and resource-utilization issues. L2 Incident & Problem Management Take ownership of incidents escalated from L1 teams and drive technical resolution within defined SLAs. Perform detailed troubleshooting using Windows Event Viewer, performance counters, system logs, network utilities, and PowerShell. Participate in root cause analysis for recurring and major infrastructure incidents. Work with L3, application, database, storage, network, cloud, and security teams for complex issues. Active Directory & Windows Infrastructure Services Administer and troubleshoot Active Directory, Group Policy, DNS, DHCP, domain authentication, and Windows services. Troubleshoot domain membership, replication, authentication, GPO application, name resolution, and access-related issues. Support secure administration of servers and infrastructure services according to organizational security requirements. Cloud Infrastructure Support Administer and support Windows workloads hosted on Microsoft Azure and/or AWS. Manage cloud-hosted Windows virtual machines and perform activities such as provisioning, monitoring, resizing, disk management, connectivity troubleshooting, and operational maintenance. Troubleshoot OS-level issues on cloud virtual machines and coordinate with cloud/platform teams when infrastructure-level intervention is required. Virtualization Support Support Windows workloads running on VMware vSphere/ESXi and/or Microsoft Hyper-V. Perform VM provisioning, resource configuration, snapshot-related operational activities, and troubleshooting. Analyze VM performance and resource utilization issues and coordinate remediation with virtualization/platform teams. Patching & Vulnerability Remediation Plan and execute Windows Server patching and security remediation activities. Troubleshoot failed patches, update-related issues, service failures, and post-patching incidents. Perform pre-change validation, post-patch health checks, and rollback/recovery activities where required. Work with security and vulnerability management teams to remediate OS-level vulnerabilities. Performance Monitoring & Capacity Support Monitor server availability, CPU, memory, disk, services, event logs, and other infrastructure health indicators. Analyze performance degradation and recurring infrastructure alerts. Support capacity planning by identifying resource constraints and recommending appropriate remediation. PowerShell & Automation Use PowerShell for server administration, health checks, information gathering, troubleshooting, and repetitive operational activities. Develop or enhance basic automation scripts to reduce manual effort and improve operational consistency. 

Skill Requirements

Support standardization of administrative and monitoring activities. Backup & Recovery Troubleshoot Windows server backup failures and coordinate resolution with backup/platform teams. Support file, system, or server recovery activities in accordance with approved procedures. Participate in recovery validation and disaster recovery activities where applicable. Change & Configuration Management Plan, document, and execute infrastructure changes following established Change Management procedures. Perform impact analysis, implementation validation, and rollback planning for Windows infrastructure changes. Maintain server configuration and operational documentation. Operational Excellence & Documentation Develop and maintain SOPs, troubleshooting guides, technical documentation, and knowledge articles. Identify recurring incidents and recommend permanent fixes or automation opportunities. Contribute to service improvement initiatives aimed at increasing availability, stability, and operational efficiency. L1 Support & Technical Guidance Provide technical guidance to L1 engineers for incident resolution and troubleshooting. Review escalated tickets to ensure adequate diagnostics and supporting information are captured. Conduct knowledge-sharing sessions and help improve L1 troubleshooting capabilities.

Other Requirements

Strong hands-on administration experience with Windows Server 2016/2019/2022. Strong understanding of Active Directory, Group Policy, DNS, DHCP, Windows Services, NTFS permissions, and domain authentication. Hands-on experience troubleshooting Windows server performance, OS, service, storage, and network-connectivity issues. Working knowledge of Microsoft Azure and/or AWS Windows workloads. Good experience with VMware vSphere/ESXi and/or Microsoft Hyper-V. Experience with enterprise Windows patching and vulnerability remediation. Good knowledge of PowerShell scripting for administration and automation. Understanding of networking concepts including TCP/IP, DNS, routing basics, ports, firewall connectivity, RDP, and name resolution. Knowledge of server backup, recovery, high availability, and disaster recovery concepts. Experience using infrastructure monitoring and alert-management platforms. Experience with ITSM tools such as ServiceNow or equivalent. Strong understanding of Incident, Problem, Change, Request, and Knowledge Management processes. Ability to analyze logs, identify root causes, and document technical resolutions.
Other Requirement : Strong analytical and troubleshooting abilities. Ability to independently manage complex L2 incidents and technical escalations. Strong ownership and follow-through on production issues. Effective communication and coordination with global technical teams and stakeholders. Good technical documentation and knowledge-management skills. Ability to work effectively in a multi-vendor and cross-functional environment. Ability to mentor and provide technical guidance to L1 engineers. Comfortable working in a 24x7 infrastructure operations/support environment, where applicable.
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 230,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2026 totaled $14.8 billion.