Windows & VMware Infrastructure Expert – L4 / Technical SME

12–18+ years | Windows Expert + VMware Expert | Deep Troubleshooting | DC Migration | VMware Cluster Migration | Windows Cluster | PowerShell/PowerCLI | P1/P2 Technical Escalation | RCA | Infrastructure Transformation

Short JD

Looking for a Windows & VMware L4 Technical Expert with 12–18+ years of strong hands on experience in enterprise infrastructure. Expert level knowledge of Windows Server, VMware ESXi, vCenter, HA/DRS, vMotion, Storage vMotion, VMware networking/storage and Windows Failover Clustering. Mandatory experience in Data Center migrations, VMware cluster migrations and complex infrastructure transformation projects. Candidate must possess exceptional troubleshooting and RCA skills and be capable of independently resolving critical Windows/VMware issues across OS, virtualization, storage and network layers.

Strong

PowerShell/PowerCLI skills and experience handling P1/P2 incidents are highly desirable. This is a hands on L4 SME role, not a coordination/management position.

Key Responsibilities

1. Windows Server – L4 Expertise

. Provide L4 technical support for complex Windows Server issues. . Strong hands on administration and troubleshooting of: Windows Server 2016/2019/2022/2025 Active Directory DNS/DHCP Group Policy Kerberos/NTLM authentication Failover Clustering Windows Server networking IIS Windows services and components

. Troubleshoot complex: OS performance issues Memory/CPU problems Disk and filesystem issues Blue Screen/BSOD Application crashes Authentication failures Domain trust issues GPO problems DNS resolution issues Windows Update/patching failures

. Analyze Windows Event Logs, dump files, performance counters and system traces.

. Perform deep root cause analysis rather than workaround based resolution.

. Engage Microsoft Support for complex product defects when required.

1. VMware – L4 Expertise Strong hands on expertise in:

. VMware vSphere . ESXi

. vCenter

. vSphere HA/DRS

. vMotion

. Storage vMotion

. VMware clusters

. Datastores

. VMFS/NFS

. VMware networking

. Standard and Distributed vSwitches

. VLANs

. NIC teaming

. VMkernel networking

. HA/DRS configuration

. VMware Tools

. VMware snapshots

. Resource pools

. Templates

. VMware Lifecycle Manager

Advanced VMware Troubleshooting

. Troubleshoot ESXi host failures.

. Analyze VMware HA/DRS issues.

. Troubleshoot vMotion failures.

. Troubleshoot VM performance issues.

. Troubleshoot datastore and storage latency.

. Troubleshoot network connectivity between ESXi, VMkernel and physical network.

. Analyze CPU Ready, memory ballooning, swapping and contention.

. Troubleshoot VM snapshot and consolidation issues.

. Troubleshoot vCenter and ESXi communication problems.

. Perform advanced log analysis using ESXi/vCenter logs.

. Identify whether issues originate from VMware, Windows, Storage or Network and drive resolution with the respective teams.

1. Data Center Migration – SME Strong experience in end to end Data Center migration projects is mandatory.

The candidate should have hands on experience with:

. Data Center exit/migration projects. . Physical to virtual migrations.

.



Virtual to virtual migrations.

. VMware workload migrations.

. Windows server migrations.

. Application dependency analysis.

. Server discovery and dependency mapping.

. Migration wave planning.

. Pre migration health checks.

. Migration execution.

. Post migration validation.

. Rollback planning and execution.

. Migration troubleshooting.

. Business/application validation.

Should be capable of handling migration day technical escalations independently.

1. VMware Cluster Migration Strong practical experience in VMware cluster migration is highly desirable.

Responsibilities include

. Design and execute VMware cluster migration. . ESXi host evacuation and workload migration.

. Cluster build and configuration.

. vCenter integration.

. HA/DRS configuration.

. Network configuration.

. Storage/datastore migration.

. VM migration using vMotion/Storage vMotion.

. Validate VM dependencies before migration.

. Handle legacy to new cluster migration.

. Perform cluster to cluster workload migration.

. Troubleshoot failed vMotion/migration activities.

. Perform post migration performance and availability validation.

. Execute rollback when required.

Expected Scenario

Candidate should be able to independently troubleshoot situations such as:

VM cannot vMotion from Cluster A to Cluster B.

They should be able to determine whether the root cause is:

vCenter ESXi CPU compatibility EVC Network VMkernel Storage Datastore VLAN VM configuration VMware Tools Snapshot DRS/HA rather than simply escalating the issue to another team.

1. Windows Cluster Migration Strong experience in Windows Failover Cluster migration.

. Windows Failover Clustering. . SQL/FILE/Application cluster awareness.

. Cluster shared volumes.

. Cluster roles/resources.

. Cluster quorum.

. Witness configuration.

. Cluster networking.

. Cluster validation.

. Storage migration.

. Node migration.

. Cluster OS rolling upgrade.

. Troubleshoot cluster resource failures.

. Troubleshoot quorum and node communication issues.

. Perform cluster migration with minimal downtime.

1. Advanced Troubleshooting The candidate should be an expert troubleshooter capable of handling major incidents involving multiple technology layers.

Expected troubleshooting approach

Application Windows VMware Storage Network Physical Infrastructure

Should have experience with

. Performance bottlenecks . Server hangs/freezes

. VM crashes

. ESXi host failures

. Storage latency

. Network packet loss

. Authentication failures

. Cluster failures

. DNS problems

. Active Directory replication issues

. vCenter failures

. Datastore issues

. VM boot failures

. Unexpected VM resets

. Hardware/firmware related issues

1. Performance Engineering Solid understanding of Windows and VMware performance metrics.

Windows

. CPU utilization .



Memory utilization

. Paging

. Disk I/O

. Disk latency

. Network utilization

. Process/thread analysis

. Performance Monitor

. Windows Performance Recorder/Analyzer

. Event Viewer

VMware

. CPU Ready

. CPU Co stop

. Memory Ballooning

. Memory Compression

. Swap

. Storage latency

. IOPS

. Throughput

. Network drops

. vMotion performance

. Datastore utilization

1. Automation & Scripting Strong scripting capability is preferred.

. PowerShell . PowerCLI

. Windows automation

. VMware PowerCLI

. REST/API based automation

. Ansible – desirable

Should be capable of creating scripts for:

. Server health checks

. VMware health checks

. VM inventory

. Cluster validation

. Datastore checks

. Capacity reports

. VM migration preparation

. Windows configuration validation

. Automated remediation

1. Critical Incident / Problem Management

. Act as the L4 technical escalation point for P1/P2 incidents. . Lead technical troubleshooting during major incidents.

. Provide technical direction to L1/L2/L3 teams.

. Perform deep dive RCA.

. Identify permanent corrective actions.

. Eliminate recurring incidents.

. Provide technical input to Problem Management.

. Participate in technical review boards.

. Work with Microsoft/VMware/vendor support when required.

. Provide detailed technical RCA and remediation plans.

1. Infrastructure Transformation Participate as a technical SME in:

. Data Center transformation. . VMware modernization.

. VMware cluster consolidation.

. Hardware refresh.

. Windows OS upgrades.

. VMware version upgrades.

. Infrastructure modernization.

. Cloud migration.

. Private Cloud migration.

. Disaster Recovery implementation.

. Server consolidation.

. Infrastructure automation.

Your future duties and responsibilities

Required qualifications to be successful in this role

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

Come join our team—one of the largest IT and business consulting services firms in the world.

📌 Windows & VMware Infrastructure Expert –/ Technical SME (Bengaluru)
🏢 CGI
📍 Bengaluru