Dinesh Ragunathan

Experience

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  Camberwell Technologies

  May 2014 - Mar 2017

  Customer Associate
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  SourceHOV India Pvt Ltd

  Mar 2017 - Oct 2018

  Production Support Engineer
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  Fiserv India Pvt. Ltd

  Nov 2018 - Aug 2021

  AWS DevOps Engineer

  Setup/ Managing Linux Servers/ Windows server / Ubuntu servers on Amazon EC2 and later used Terraform script to deploy it. Creating/Managing AMI/Snapshots/Volumes, Upgrade/downgrade AWS resources (CPU, Memory, EBS).Setup/Managing Databases on Amazon RDS. Monitoring servers through Amazon Cloud Watch, SNS.Used Ansible to do configuration and to automate deployments Maintain system availability as per multiple Service Level Agreements (SLA).Worked on creating Kubernetes cluster from end to end.Managing the services within AWS and global IT infrastructure.Manage and configure AWS services as per the business needs (ELB, Route53, S3, Cloud Watch, IAM, VPC)Handling L1 and L2 level issues, involved in the client calls, done several deployments, Client handling and resolving the tickets.Worked on Pod Creation and managing Containers.Implemented continuous delivery pipeline involving Jenkins, Ansible to complete the automation from commit to deployment.Assisted developers with establishing and applying appropriate branching, labeling convection's using GIT source control.Implemented and supported CI process via Jenkins.Administrated and Implemented CI tools Jenkins for automated builds and also integrating Unit tests and Code Quality Analysis Tools like SonarQube.Hands on working experience on Web Server (Apache), Application Servers (Tomcat), DB Server (MySQL).Documented the entire installation process for various tools and provided on-call support. Show less

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  PDI Technologies

  Aug 2021 - now

  Cloud DevOps Engineer

  Have experience in installing configuring, deploying, troubleshooting, administration and maintenance .Net applications hosted on Windows server, IIS and using databases like MySQL and Postgres.Responsible for support and maintaining of all the environments in the project.Created infrastructure from scratch using IaC tools such as Terraform/Terragrunt, which is crucial for maintaining consistent and scalable environments.Created and managed CI/CD pipelines using CloudBees Jenkins, including code quality checks with SonarQube integration.Deployed applications using Elastic Beanstalk service and managed related AWS services such as Route53 for domain management.Created OpenVPN setup in the Redhat Linux operation system with limited licenses.Installed, configured and managed the monitoring tools such as CloudWatch and Datadog for log collection & Application Performance Monitoring [APM]. Installed agents using both the Windows Server instances and Kubernetes pods.Performed RDS databases migration from one AWS account to another.Created and managed SSM document, commands and parameters from the AWS System manager service. Created ACM certificates, updated CNAME/A records in Route53 service and configured them for various AWS resources.Created and worked with the Python script [using Boto3] in the AWS Lambda functions.Successfully reduced infrastructure costs around $20,000 per year by using the AWS Trusted Advisor service and CloudHealth technology tool.Experiences using Atlassian products like JIRA for issue tracking and Confluence for documentation.Worked with IAM service to create new IAM users, groups, defining roles and policies, as well as implemented IAM switch roles for improved security.Worked on the support cases related to the Kubernetes.Created audit reports and worked in the infrastructure security hardening using tools like ScoutSuite. Show less