Summary
Overview
Work History
Education
Skills
Websites
Certification
Timeline
Generic

Venkata Rami Reddy Challa

Summary

Dynamic Cloud DevOps Engineer with a proven track record at Walmart, excelling in cloud migrations and infrastructure automation. Expert in Terraform and Ansible, enhancing operational efficiency. Adept at mentoring teams and fostering collaboration. Successfully led a 30% reduction in deployment times, showcasing strong leadership and technical prowess.

Overview

11
11
years of professional experience
1
1
Certification

Work History

Cloud DevOps Engineer

Walmart
Bentonville
05.2020 - Current
  • Led migrations of legacy infrastructures to Nutanix platforms for Walmart’s distribution systems.
  • Configured cloud data infrastructure on AWS, Azure, and Google Cloud to improve data processing capabilities.
  • Architected shared platform services utilizing GCP core infrastructure for efficient multi-team environments.
  • Managed infrastructure components including virtual machines, storage devices, networks.
  • Designed Infrastructure as Code (IaC) solutions for compute, storage, networking, IAM, and security components.
  • Established resource hierarchy along with IAM roles and organization policies for secure governance.
  • Created CI and CD pipelines with Jenkins and Docker to automate the build process of applications.
  • Deployed microservices on Kubernetes clusters to enhance scalability across multiple regions.
  • Implemented systems automation using scripting languages like Python and Bash.
  • Configured, managed, and monitored cloud-based services such as AWS EC2, S3, EBS, ELB, RDS using Terraform and Ansible.
  • Mentored junior engineers in cloud technologies while facilitating knowledge-sharing initiatives as a Nutanix SME.
  • Collaborated with developers in order to troubleshoot application related issues quickly.

Senior Cloud Infrastructure Engineer

Wipro Technologies
04.2018 - 05.2020
  • Migrated legacy systems to the cloud environment with minimal downtime.
  • Worked closely with development teams to ensure successful deployment of applications on the cloud platform.
  • Automated cloud deployments using Terraform and Ansible to enhance operational efficiency.
  • Configured load balancers and auto-scaling groups to ensure high availability and fault tolerance.
  • Implementing the changes as per the process and customer requirements.
  • Good work experience on Red Hat patching, HPSA (HP Server Automation) tool.
  • Worked on VERITAS volume and cluster upgradation on Linux servers using the HPSA tool.
  • Coordinating with the application team to schedule the changes as per the customer's request.
  • Creating changes for performing server decommission and patching activities.
  • Managing file system-related issues, disk administration in LVM.
  • Disk configuration, maintenance, and configuring new devices.
  • Coordination with the vendor for hardware replacement.
  • Worked with the LINUX File System and Network File System.
  • Configuring and troubleshooting knowledge on VERITAS NetBackup on client machines.
  • Worked on NetBackup troubleshooting issues.
  • Knowledge of NFS Server and Client Implementation.
  • Configuring and maintaining RAID devices using VERITAS (VXVM) products.
  • Creating the VERITAS file system on volumes.
  • Experience in disk group deports and imports.
  • Monitoring, starting, and stopping the cluster services.
  • Managing the failover and parallel cluster.
  • Manually switch over the service group from one node to another node.
  • Using Veritas Cluster Server to verify failover/parallel in case of an outage in the high environment.
  • Freezing service groups and unfreezing service groups.
  • Having good experience in cluster configuration modification.
  • Clear the faulted resources, and make them online on service groups.

Associate Consultant

AtoS Global IT Solutions and Services Private Limited
02.2014 - 03.2018
  • Using ServiceNow ticketing tools for managing incidents, SRs, and change requests.
  • Developed scripts to automate various system administration tasks.
  • Migrated existing applications from legacy platforms onto modern Linux distributions.
  • Troubleshot hardware related issues on Linux systems including kernel panics and boot errors.
  • Deployed software packages using package managers such as apt-get or yum repositories.
  • Performed regular maintenance tasks such as patching, security updates, log reviews, backups.
  • Installed and configured Linux operating systems on physical, virtual, and cloud environments.
  • Integrated third-party applications into existing infrastructure environment.
  • Managed storage devices like RAID arrays and SANs using LVM or other storage management tools.
  • Configured network services such as DNS, DHCP, NFS, FTP, SSH and web servers.
  • Managing file system-related issues, disk administration in LVM.
  • Worked on user and group administration, and modified user profiles as per request.
  • Coordinate with operating system vendors for root cause analysis.
  • Creating hard links and soft links for files and directories as per request.
  • I upgraded the VM version and VMware Tools.
  • Coordination with the vendor for hardware replacement.
  • Worked with the LINUX File System and Network File System.
  • Maintaining a scheduled process through CRON.
  • Knowledge of NFS Server and Client Implementation.
  • Generate a DEST report on physical servers.
  • Experience in extending the memory, CPUs, and disk in virtual environments.
  • Creating changes for performing server decommission and patching activities.

Education

Bachelor of Science - Computer Science

JNTUK
India

Skills

Operating systems: RHEL 5x to 8x, SUSE 11 to 15, CentOS, Ubuntu, Windows

Cloud platforms: AWS (EC2, VPC), VMware, Nutanix, GCP

Infrastructure as code: Terraform and CloudFormation

Hardware solutions: HP ProLiant series, Dell PowerEdge line, IBM servers

Issue tracking tools: ServiceNow and Jira

Data backup solutions: Veritas NetBackup and IBM TSM

Clustering technologies: Veritas cluster and Pacemaker HA

Automation tools: Ansible and Puppet with Python scripting

DevOps tools: Jenkins CI/CD pipeline with Git and Docker

Certification

  • Google Cloud Professional Cloud Architect Certification
  • Nutanix Certified Professional - Multicloud Infrastructure 5
  • ITIL V3 foundation certified

Timeline

Cloud DevOps Engineer

Walmart
05.2020 - Current

Senior Cloud Infrastructure Engineer

Wipro Technologies
04.2018 - 05.2020

Associate Consultant

AtoS Global IT Solutions and Services Private Limited
02.2014 - 03.2018

Bachelor of Science - Computer Science

JNTUK

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Venkata Rami Reddy Challa