Senior Azure Cloud Support Engineer (L3) – Enterprise Migration

Job Description – Senior Azure Cloud Support Engineer (L3) – Enterprise Migration Job Title: Senior Azure Cloud Support Engineer (L3) Experience: 8–12 Years Employment Type: Contract / Full-Time Location: Malaysia / Singapore (Hybrid/Onsite as required) Job Summary We are seeking a highly skilled Senior Azure Cloud Support Engineer (L3) to join a large-scale enterprise cloud transformation program involving the migration of 300+ business-critical applications from an on-premises environment to Microsoft Azure. The ideal candidate will possess deep expertise in Azure Infrastructure, IIS, Azure Application Gateway, AKS, Istio Service Mesh, Microsoft SQL Server, MySQL, enterprise networking, and security. The role requires hands-on experience in designing, executing, and supporting complex cloud migrations while ensuring minimal downtime, high availability, and operational excellence throughout the migration lifecycle. Key Responsibilities Enterprise Cloud Migration Lead the migration of 300+ enterprise applications from on-premises infrastructure to Microsoft Azure. Assess application architecture, infrastructure dependencies, and migration readiness. Execute Lift & Shift (Rehost), Replatform, and Cloud Modernization initiatives. Plan and execute production cutovers, rollback strategies, and post-migration validation. Support migration of both Internet-facing and Intranet business applications. Participate in migration planning, risk assessments, and technical workshops. Azure Infrastructure Administration Deploy, configure, and support Azure IaaS and PaaS services. Design and manage Azure Landing Zones. Administer:Azure Virtual MachinesVirtual Networks (VNet)Network Security Groups (NSG)Route TablesAzure FirewallAzure Application Gateway (WAF)Azure Load BalancerVPN GatewayExpressRouteAzure StorageAzure Backup Monitor infrastructure health using Azure Monitor, Log Analytics, and Application Insights. Application & Web Infrastructure Administer and migrate applications hosted on Microsoft IIS. Configure and support Azure Application Gateway for application routing and load balancing. Troubleshoot application connectivity, SSL/TLS certificates, DNS, and reverse proxy configurations. Support both Internet-facing and internal enterprise applications. Kubernetes & Container Platform Support Azure Kubernetes Service (AKS). Deploy and manage applications using Kubernetes. Configure and troubleshoot Istio Service Mesh. Manage Ingress Controllers and container networking. Deploy workloads using Helm Charts. Support container monitoring and operational health. Database Migration & Administration Plan, migrate, and support:Microsoft SQL Server (MS-SQL)MySQL Perform database migration, backup, restore, replication, and performance tuning. Support Azure SQL migration activities and production cutovers. Networking & Security Configure and troubleshoot:Azure Application GatewayF5 BIG-IP Load BalancerAzure FirewallNetwork Security GroupsExpressRouteSite-to-Site VPNDNSSSL CertificatesTCP/IP Networking Ensure secure hybrid connectivity between on-premises and Azure environments. Operations & L3 Support Provide Level 3 production support for Azure infrastructure and enterprise applications. Troubleshoot complex infrastructure and application issues. Perform Root Cause Analysis (RCA) and implement permanent solutions. Participate in change management, release management, and maintenance activities. Support high availability, disaster recovery, and business continuity initiatives. Prepare technical documentation, SOPs, and knowledge base articles. Automation & DevOps Automate infrastructure deployment using:PowerShellAzure CLITerraformBicep Support CI/CD pipelines using Azure DevOps and GitHub Actions. Implement Infrastructure as Code (IaC) best practices. Required Technical Skills Cloud Platform Microsoft Azure Azure IaaS & PaaS Azure Virtual Machines Azure Storage Azure Monitor Azure Backup Azure Application Gateway Azure Firewall Azure DNS Azure Load Balancer ExpressRoute VPN Gateway Application & Middleware Microsoft IIS Azure Application Gateway SSL/TLS Reverse Proxy DNS Web Application Hosting Container Platform Azure Kubernetes Service (AKS) Kubernetes Docker Istio Service Mesh Helm Networking TCP/IP Hybrid Networking ExpressRoute Site-to-Site VPN Azure Firewall F5 BIG-IP Load Balancer NSG Routing Network Security Database Microsoft SQL Server (MS-SQL) MySQL Azure SQL Database Backup & Recovery Database Performance Tuning Operati…