Karthik Velusamy
260, Lakshmi Nivash,E-city,Bangalore
Summary
- Over 13+ years of experience in LINUX Server Administration and 7+ years of experience in DevOps practices.
- Experienced in creating, configuring, and maintaining Infrastructure on AWS Cloud services and on-premises data center.
- Experienced with container-based deployment in the docker cluster using Kubernetes.
- Experienced in Bug/Issue tracking tools like JIRA.
- Experienced in writing BASH scripts and Python for process automation.
- Experienced in CI/CD process tools like Jenkins.
- Hands-on experience with databases (MySQL, PostgreSQL) queries, creating users, performing dump/restore, and replication.
- Experienced in Cloudera Administration.
- Ability to handle multiple tasks and work independently as well as a team member.
Overview
14
14
years of professional experience
1
1
Certification
Work History
Sr. Implementation Engineer
Smarsh India Private Limited
Bengaluru
09.2020 - Current
- Company Overview: Smarsh is a product-based organization that provides a SAAS platform for Cloud-based capture, archiving, and supervision solutions across more than 80 channel's
- Implemented Digital Safe and Capture infrastructure on the premise data center with KVM hypervisor and AWS cloud using IaC tools (Terraform)
- Experience with the docker container-based deployment using Kubernetes
- Orchestrated and managed microservices with Kubernetes, ensuring high availability and scalability
- Setup and administrate Elastic, RabbitMQ,Vault and Redis clusters with Saltstack automation
- Integrated ELK Stack for real-time monitoring, reducing incident response time by 50%
- Involved tech refresh activities for UAT, PROD environments
- Experience automating Digital Safe infrastructure deployments and configuration management using tools like Jenkins and Saltstack
- Implemented Jenkins pipeline with Groovy for automated purposes for the various applications
- Implement, Review, and Execute SQL queries on the MySQL, and PostgreSQL Databases
- Working Bug/Issue tracking tools like JIRA
- Involving with team for Sprint planning, Sprint review and retrospective meetings
- Setup and administrate Linux services like NFS, NTP,httpd,dnsmasq,haproxy,tomcat(wildfly),iptables,keepalived
System Administrator (Software Product Development)
A.T.E Enterprises Private Limited
Bengaluru
02.2017 - 09.2020
- Company Overview: EcoAxis is one of the business units of ATE
- EcoAxis offers an IoT-based SAAS platform for advanced analytics and smart manufacturing solutions to enhance operational productivity, performance, and energy efficiency in various industries
- Implemented and maintained EcoAxis infrastructure in AWS cloud/Development/QA environments
- Setup and administered HDFS,Hbase,YARN,Flume,HIVE,Impala,Kafka,Sqoop in the Cloudera EcoSystem in the Dev/QA/Prod environments
- Administered flume service for the data injection to HBase
- Administered Kafka cluster for processing data in real-time and storing it in HBase
- Handling backups for HBase tables
- Built out the automation with Ansible and used other tools like Jenkins/Maven for deployment and build management
- Implemented infrastructure monitoring with the ELK stack (Elasticsearch,Logstash,kibana,metric beat,heartbeat,filebeat)
- Designed and developed process monitoring and automation scripts using Python
- Administered Bug/Issue tracking tools like JIRA
- Handling tickets to solve developer issues and deployments
Server Administrator
FW Sports and Media Private Limited
Bengaluru
06.2015 - 11.2016
- Company Overview: FW Sports and Media Private Limited is a media-based product company where I worked as Server Administrator
- Involved in designing and deploying multi-tier web applications on AWS stack (Including EC2, Route53, S3, RDS, Dynamo DB, SNS, SQS, IAM) focusing on high-availability and auto-scaling
- Migrated the current Linux environment to AWS/Ubuntu Linux environment and used the auto scaling feature
- Implemented and maintained a production environment to handle the high traffic situation
- Provided operational support of the cloud environment for the development
- Developed scripts for automation using Jenkins
Cloud Server Administrator
Razorfish Neev Technologies
Bengaluru
10.2014 - 06.2015
- Company Overview: Razorfish Neev Technologies is a software application development company, where I worked as Cloud Server Administrator
- Provided support for AWS hosted web applications & databases
- Provide operational support of cloud environments for both the development and production environments
- Worked with GitHub private repositories
- Extensively worked on Jenkins for Continuous Integration and automation for all Build & Deployments
- Deployed and supported Memcached cluster with AWS ElastiCache
- Created load balances (ELB) and used Route53 with fail over and latency options for high availability and fault tolerance
- Implemented CI/CD pipeline for various web applications
- Implemented MongoDB database clusters
- Implemented MySQL database clusters
Linux System Administrator
Mahiti Info Tech Pvt Ltd
Bengaluru
11.2011 - 09.2014
- Company Overview: Mahiti is a software application development company, where I worked as Linux System Administrator
- Local and remote Linux server administration
- Network File Sharing Services (NFS, FTP, SAMBA, SSH ) configuration
- LAMP (Linux,Apache,Mysql,PHP) based infrastructure administration
- Nginx/HAProxy Web Proxy server configuration
- Troubleshooting Linux Servers and Networking Issues
- Setting up Software Environment for PHP(Joomla, CodeIgniter and Drupal) and Python (web2py,Django) frameworks
- Setting up VOIP systems using Asterisk
- Installed and maintained of Database Management Systems like MySQL & Postgres
- Setting up Remote Monitoring Systems for Servers and Websites using Nagios & Uptime robot
- Shell Scripting, Setting Cron jobs, Configuring Log rotate,etc
- Configured and maintained Slony II for Postgres replication
- Configured and maintained MySQL Replication
- Configured and maintained MySQL & PostgreSQL table Partitioning
- Responsible for ensuring Systems & Network Security, maintaining performance & high availability of Servers, Network, Databases & applications
- Implemented and maintained of Cloud services using Amazon web service like EC2,SES,Cloud Front,Cloud Watch,Load balancing,Auto Scaling,S3.
Software Engineer
Netcon Technologies India Pvt Ltd
Coimbatore
10.2010 - 10.2011
- Analysis, Design, and Coding of Log Analyzer project
- Analysis of technical issues in implementing the solution and tracking the issues to closure
Education
Bachelor of Engineering -
Anna University Regional Campus
Coimbatore, Tamil Nadu01.2010
Diploma in Computer Science And Engineering -
Sakthi Polytechnic College
Sakthi Nagar, Tamil Nadu01.2006
Skills
- Linux
- Docker
- Kubernetes
- AWS
- Terraform
- Salt stack
- Jenkins
- Git
- Vault
- ELK stack
- MySQL
- PostgreSQL
Certification
Certified Kubernetes Administrator, LF-r2964craoe
Timeline
Sr. Implementation Engineer
Smarsh India Private Limited
09.2020 - Current
System Administrator (Software Product Development)
A.T.E Enterprises Private Limited
02.2017 - 09.2020
Server Administrator
FW Sports and Media Private Limited
06.2015 - 11.2016
Cloud Server Administrator
Razorfish Neev Technologies
10.2014 - 06.2015
Linux System Administrator
Mahiti Info Tech Pvt Ltd
11.2011 - 09.2014
Software Engineer
Netcon Technologies India Pvt Ltd
10.2010 - 10.2011
Bachelor of Engineering -
Anna University Regional Campus
Diploma in Computer Science And Engineering -
Sakthi Polytechnic College