Preetham Kalangi

Experience

1. Sr Devops Developer Sre Linux Admin

   Ericsson

   Dec 2021 — Present

   Migrated 1500 legacy servers to Cloud.• Worked as migration lead for Ericsson Engineering Cloud test environment project.• Provided technical solutions for the old HW to migrate to the cloud environment.• Configured HA Proxy, SFTP servers in Redhat 8.3and Suse Linux 15.2• Designed and managed the deployment pipeline for a web application on a mixed environment consisting of Redhat(RHEL 7.9 & RHEL 8.3) servers.• Configured load balancers and auto-scaling in Azure cloud to efficiently distribute workloads across cluster nodes, optimizing resource utilization and improving system performance.• Designed and configured Azure Virtual Networks (VNets), subnets, Azure network settings, DHCP address blocks, DNS settings, security policies and routing.• Deployed Azure IaaS virtual machines (VMs) and Cloud services (PaaS role instances) into secure VNets and subnets.• Implemented and maintained Kerberos (KRB) authentication for a multi-platform environment, ensuring secure user authentication across the organization.• Worked with Linux Services such as Samba, FTP, and NFS• Worked with cross functional teams to resolve Linux related issues and migration issues.• Exposure to Ansible including creating playbooks, running Ad-hoc commands, creating host inventories.• Experience in writing scripts using Python & Shell to automate tasks• Automating the tasks using shell scripting and scheduling cron jobs.• Created the CPU and Memory metrics application in Python and deployed for monitoring of few servers.

Education

• Bharath Institute Of Science And Technology

  Bachelor's degree, Electrical, Electronics and Communications Engineering