Senior Infrastructure Engineer – Windows to GCP Migration

Job Title: Senior Infrastructure Engineer Windows to GCP MigrationExperience: 10+ Years

Location: ChennaiRole SummaryWe are seeking a Senior Cloud Infrastructure Engineer to drive core infrastructure operations, lead server OS migration initiatives, and support the strategic transition from Azure to Google Cloud Platform (GCP).This role combines cloud infrastructure architecture and networking with hands-on Windows Server OS troubleshooting, host-level migrations, and system upgrades.

The ideal candidate will have strong multi-cloud experience, deep Wintel administration expertise, and the ability to serve as a primary technical escalation point for cloud infrastructure and legacy operating system environments.Key Responsibilities 1. Server OS Administration & Legacy UpgradesHost-Level OS Upgrades: Lead in-place and side-by-side upgrades of legacy systems, including Windows Server 2012 to 2016, 2019, and 2022, while minimizing business downtime. Troubleshooting & Escalations: Act as the primary escalation point for critical Windows/Wintel OS-level issues, performance bottlenecks, patch management, and server debugging. Hybrid Operations: Manage on-premises-to-cloud server integrations, including Active Directory, Microsoft Entra ID, DNS, and server-level security compliance. 2. Cloud Infrastructure & Migration (Azure to GCP)Cross-Cloud Migration: Execute server and workload migration strategies from Azure to GCP, including pre-migration assessments, dependency mapping, migration planning, and cutover execution. Landing Zone & Network Engineering: Maintain and configure hub-and-spoke topologies, cloud landing zones supporting 200+ workloads, IPsec tunnels, Barracuda VPN, cross-cloud routing, VNet/VPC configurations, and Application Gateways. Infrastructure as Code (IaC): Automate compute, networking, and storage provisioning using Terraform. 3. Systems Monitoring & OptimizationMonitoring Tools: Support infrastructure monitoring operations and assist in transitioning monitoring workflows to Zabbix. Cost Optimization: Optimize cloud infrastructure costs through resource right-sizing, disk-tier adjustments (Premium SSD to Standard SSD), and reservation strategies across development, staging, and production environments. Professional Qualifications Core Experience & Technical SkillsExperience: 10+ years of experience in infrastructure engineering, systems administration, and cloud operations. **Windows Server /