Hariharasudhakaran A Email & Phone Number

Bengaluru, Karnataka, India

Chennai, Tamil Nadu, India

Developing AWS Infrastructure as Code (IaC) at scale using TerraformAdministration of AWS cloud infrastructure.Created and configured EC2 instance, an elastic load balancer, and auto-scaling group to distribute the traffic and have a cost-efficient, fault-tolerant, and highly available environment.Creating S3 budget as per the requirement and authorizing with budget policy and ACLEnabling cross-region replication and versioning for the critical budgetCreating Compute instances, VPC, Google Storage, and IAM usersMonitoring and troubleshooting AWS cloud infrastructureManaging on-prem Kubernetes clustersConfigure and troubleshoot Kubeadm Kubernetes cluster-related issues.Designing and implementing fully automated server management and deployment by using cloudformationAutomating reaped tasks using Shell scripting (basic knowledge)Creation and maintenance of CI/CD Pipelines in Jenkins with GitHub.Monitoring the infrastructure using Newrelic, Grafana, Ambari, and Cloudera Manager.Customers create cases for their Hadoop-related issues with Cloudera, and we have to work on the cases via email and zoom/webex based on the priority.Working on customer escalation cases in HIVE, LLAP, and TEZ components.Providing solutions and RCA to Hive’s slow query application and failed applicationTroubleshooting failed service and job issues by reviewing logs. Fixing regular issues like Alerts, user access, permission, ACL, connection failure, file limits, and memory swappingTroubleshooting Hive and related components like HDFS, YARN, Tez, Ranger, Zookeeper, Hue, JDBC/ODBC, Mysql, Cloudera Manager, and Apache AmbariInstalling and configuring the Hadoop cluster internally for our troubleshooting and issue reproducing purposesProviding RCA to customers is a critical issue.Collaborating with the Engineering and Backline teams via Slack and Zoom to provide optimal solutions to the customerAnalyzing JSTACK, Heap Dump, and Java-based troubleshooting for Hadoop components

Chennai Area, India

Working on SAAS migration to migrate the Prod/Stg/Test instances to cloud.I worked on JIRA for defect/issues logging & tracking and documented all my work using CONFLUENCESetup/Managing Linux Servers on Amazon (EC2, EBS, ELB, SSL, VPC, S3, Security Groups, RDS, Route 53, CloudWatch, CloudTrail, SNS, AutoScalingGroups (ASG), and IAM).Experienced in creating multiple VPC’s and public, private subnets as per requirements and distributing them as groups into various availability zones of the VPC.Configuring cloud formation and building the infrastructure.Having good knowledge in creating and launching EC2 instances using AMI’s of Linux, Ubuntu, and RHEL, and writing shell scripts for the bootstrap instancesCreated NAT gateways and instances to allow communication from the private instances to the internet through bastion hosts.Used IAM for creating roles, users, and groups, and also implemented MFA to provide additional security to AWS accounts and its resources.Created EBS volumes for storing application files for use with EC2 instances whenever they are mounted to them.Created and configured elastic load balancers and auto-scaling groups to distribute the traffic and have a cost-efficient, fault-tolerant and highly available environment.Create a bucket on S3 and Upload/Download data using the CLI command.Create/Manage buckets on S3 (CLI) and store DB and log backups; upload images for CDN service.Configured S3 buckets with various life cycle policies to archive the infrequently accessed data to storage classes based on the requirementExperience with container orchestration systems such as AWS ECS (Docker), EKS (Kubernetes)Experienced in deploying and configuring Chef-Server including bootstrapping Chef Chef-Client nodes for provisioning. Created roles, recipes, cookbooks, and data bags for server configuration.Maintained the monitoring and alerting of production/staging/Test servers using New Relic

Mangalore Area, India

Configuring, implementing, and Troubleshooting DNS.Configuring and Managing Apache Web Server.Configuring Apache in LAMP EnvironmentGood Knowledge of PHP Recompilation.Installing and Configuring Samba and NFS serversPackage Updating through YUM installationExperience in Source Installation.Good practice in RPM Installation.DHCP and FTP Server ConfigurationMigration of the data from the crashed server to the new server by using sync and backup.Kept detailed daily work logs, often used for future reference.Configuring, administering, and managing users and groupsCreating and Restoring Backups using tarExposure to kickstart, which was used to install on Linux servers.Monitoring servers and networks using NMAP and NagiosRemote Administration Tools: SSH, SCP, and FTP.Checking OS Level Logs and Troubleshooting IssuesApplying file permission is like a sticky bit for the project team.Applying Read, Write, and Execute file permissions in Linux Performed daily maintenance and support for servers (Linux).Log Verification.Monitoring and Performance tuning for various Linux server operating systemsInstall, configure, and upgrade all Linux servers (Hardware and Software).Managing MYSQL databases (user account maintenance, Database backup/restore, Repair and maintenance, Creating new users and granting privileges, Revoking privileges, Database and table privileges: alter, create, delete, drop, insert, select, and updateProviding the 2nd level technical support for Linux