Rohit Krishna Kammadanam

Critical thinking DevOps Engineer with extensive understanding of high availability architecture and concepts. Purpose-driven professional with capacity to be strong team player plus work effectively independently.

• Experience in provisioning Linux servers in cloud environments and setting security groups. Experience in creating Users, Packages, File Permissions, Services, Network, Troubleshooting Log files and Process Administration in Linux Servers. Managed code repository in GitHub, improved practices of branching and code merge to custom needs of development team. Hands-on Experience in using Maven build tools for the building of deploy-able artifacts such as JAR, WAR & EAR from source code. Extensively worked on Jenkins by installing, configuring and maintaining for the purpose of Continuous Integration (CI) and for End to End automation for all build and deployments. Experience working with Docker and managing containers and their life-cycle. Experience in Configuration Management using Ansible and creating playbooks.
• Hands-on experience on Cloud services like AWS (ELB, EC2, EBS, AMI, SNS, Route53, S3, RDS, Cloud Watch, IAM, Security Groups, RDS and VPC and Auto scaling). Good working knowledge AWS IAM Service: IAM Policies, Roles, Users, Groups, AWS Access Keys and Multi Factor Authentication Built S3 buckets and managed policies for S3 buckets and used S3 bucket and Glacier for storage and backup on AWS. Hands on experience on Static web hosting. Estimating AWS usage costs and identifying operational cost control mechanisms. Having experience in monitoring tools Nagios & Cloud Watch. Collaborate with Infrastructure, Development and Production support teams.
• . AWS Components Involved: VPC, ASG, Route53, CDN, ELB, EC2, S3, NAT, API Gateway. Cloud Cost Optimization — AWS Used the combination of AWS cloud watch and Lambda functions To decrease the cloud cost by 25 percent. Implementation: Created lambda function in python, used the boto3 module to interact With AWS service APIs and this lambda function is triggered by Cloud Watch events. This lambda function would watch for any unused EBS snapshots and Either delete them or send out notification to the snapshot owner.

End to End CICD Implementation— Jenkins

Implemented an end to end CI/CD pipeline for Java based application using Jenkins declarative pipelines. As part of the

pipeline, I have implemented various stages such. As Build, Unit testing, static code analysis, SAST, DAST, Creation Of

Docker Images, Deployment on Kubernetes platform using Argo CD.

Implemented Three Tier Architecture — AWS

Implemented a three tier Architecture that is highly available and salable using Terraform and deployed the application

On Ec2 Instances using the User Data script.

AWS Components Involved:

VPC, ASG, Route53, CDN, ELB, EC2, S3, NAT, API Gateway.

Cloud Cost Optimization — AWS

Used the combination of AWS cloud watch and Lambda functions

To decrease the cloud cost by 25 percent.