Sr Subject Matter Expert (Support&Ops)

HCL Technologies Limited; Chennai; On-site; INR 900,000 - 1,800,000; Full time

Job summary

HCLTech is seeking an L3 Windows & Virtualization Engineer to act as the primary support layer, monitoring systems, handling incidents, and ensuring timely escalation while maintaining SLA compliance and stability.

You will work with Windows OS, AD/DNS/DHCP, VMware ESXi/vCenter, vRA, PowerShell/PowerCLI, and backup solutions to keep infrastructure reliable. Strong problem-solving and collaboration with vendors are essential.

Qualifications

• Experience with Windows OS and server administration.
• Hands-on with AD, DNS, DHCP and user management.
• VMware environment expertise (VM lifecycle, snapshots, cloning).
• Scripting with PowerShell/PowerCLI for automation.
• Experience with patching, backups and security hardening.

Responsibilities

• Monitor systems, handle incidents, and perform initial troubleshooting.
• Escalate issues timely to maintain SLA and stability.
• Administer VMware vCenter/ESXi; manage VMs, cloning, and migrations.
• Configure virtual networking, storage basics, and backups.
• Perform patching, upgrades, and vulnerability remediation.

Skills

Windows OS

Server administration

AD/DNS/DHCP

VMware ESXi/VCenter

PowerShell/PowerCLI

RDP and user mgmt

Tools

VMware vSphere

PowerCLI

Veeam

vRA

Job description

L3 Windows & Virtualization Engineers act as the primary support layer responsible for monitoring systems, handling incidents, performing initial troubleshooting, and ensuring timely escalation while maintaining SLA compliance and operational stability.

Key Responsibilities

Strong knowledge of Windows OS and server administration.

Hands-on experience with AD, DNS, DHCP, and user management.

Handle user accounts, password issues, and access management.

Monitor server health, uptime, disk usage, and performance.

Restart services and analyze event logs for troubleshooting.

Manage file permissions, printers, and RDP access issues.

Administer VMware environment (VM lifecycle, snapshots, cloning).

Perform VM creation, migration, and resource management.

Ensure HA, DRS, and cluster load balancing.

Manage datastores and storage (SAN/NAS basics).

Support backup solutions (Veeam, snapshots, restore).

Handle vCenter and ESXi installation, configuration, and troubleshooting.

Perform patching, upgrades, and SSL certificate management.

Configure virtual networking (vSwitch, port groups, VLANs).

Integrate automation tools (vRA, third-party tools).

Coordinate vendor cases (VMware/Microsoft) and track RCA.

Perform performance tuning, capacity planning, and RCA.

Implement Windows patching, backup, and security hardening.

Administer IIS, file servers, and clustering (Failover/Always On).

Handle AD migration, OS upgrades, and Azure AD hybrid setup.

Perform advanced PowerShell and PowerCLI scripting.

Support RDS farm setup and troubleshooting.

Perform replication, SRM configuration, and DR operations.

Analyze dumps, crashes, and advanced system issues.

Handle vulnerability remediation and compliance management.

Other Requirements

Excellent knowledge of Windows VMware along with understanding

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 September2026totaled $14.8billion.