varun nidadavolu

Architected and managed Azure cloud infrastructure including VMs, VNets, NSGs, Storage Accounts, and AKS clusters, ensuring high availability, scalability, and secure network design. Designed, implemented, and maintained Azure DevOps CI/CD pipelines to enable streamlined build, test, and deployment processes across multiple environments. Provisioned and administered Oracle Cloud Infrastructure (OCI) resources like VCNs, Compute Instances and Oracle DB systems supporting enterprise workloads. Led end-to-end

Led deployment, upgrade and life cycle management of MongoDB (shard cluster replica sets) and MSSQL (Always On AG) across on-prem and cloud environments. Architected and managed highly availability, SLA-driven database environments with comprehensive DR strategies and backup validation and recovery testing. Deploying microservices based applications on kubernetes clusters. Build and support CI/CD pipelines and deploy containerized microservices using Kubernetes to enable automated and reliable releases. Aut

Deploy, administer and support Oracle, SQL Server and MySQL databases across standalone, clustered and RAC environment. Manage Oracle RAC and Grid infrastructure, including PSU/Release updates and major upgrades. Install, configure and upgrade SQL Server (2008R2-2016) across standalone, Failover clusters and Always on AG. Implement high availability and disaster recovery solutions, including SQL Server Failover clusters and Oracle RAC. Configuring and manage Backups and recovery solutions for various DB Fla

Worked on high availability 3/5 Node Oracle RAC, Data guard and 5 node SQL Server AAG, Failover Cluster and Mirrored Environments. Installation and configuration of various SQL Servers and Oracle RAC and Data Guard of various versions on RHEL and Windows server. Patching Oracle and SQL Server Databases with the latest PSU/Bundle patches. And service packs in Oracle RAC, Data Guard and SQL Server AAG and Mirrored environments. Deployed OVM for managing Oracle DB stack. Database refresh in various servers usi

Installed, configured and administered Oracle databases across dev, qa and production environment including RMAN based cloning for environment provisioning. Implemented and maintained high availability standby database and managed ASM disk groups, tablespaces and control files. Applied PSU patches and security hardening, including user, role and privilege management, ensuring compliance and stable operations. Responsible for maintenance of database components and managing user administration. Provided 24x7