Pawan Kumar

- Implement and setup Kubernetes High-Availability cluster on Production. - Monitor Kubernetes Cluster performance using Grafana, Prometheus, InfluxDB and Heapster. - Setup CI/CD with Jenkins on Kubernetes with dynamic provisioning of slave on demand. - Create and publish Ansible project on github to automate deployment of kubernetes HA cluster - Help Dev team to integrate Docker plugin with Maven/Ant/Gradle to build docker image with Jenkins and deployment of image on Kubernetes cluster. - Deploy Aerospike, Zookeeper, Kafka, Rabbitmq, Cassandra, Mongo, Elasticsearch, Graylog, Redis, Orientdb, Ruby on rails and many more application cluster on Kubernetes. - Create inhouse Docker images using Dockerfile and set up HA internal Docker registry. - Create script to automate deployment/rollback on Kubernetes and use Rundeck to run these script. - Build Kubernetes GUI using python for Cluster Inventory and Service URL debugging. - Managing and setting up the Linux environment as well as the Applications running on it. - Managing, monitoring, debugging, and supporting Production Tomcat, Apache and Nginx application. - Creating/Modifying VS/VIP/Pool/Irule on Big-IP LTM. - Automating infrastructure setup using Ansible, Jenkins, Docker, Bash, Python. - Deploying Centralized logging using Graylog, Elasticsearch, Filebeat and use Graylog sidecar to manage filebeat configuration on client node. - Monitoring and Security setup using Nagios, Ossec, Cacti, Centreon, Maldet. - Ensuring fault free System Performance monitoring & fine-tuning of Servers. - Installing and managing Mysql, Mongo databases. - Design and implementation of system administration policies/procedures, write status reports and user technical documentation.

- Installed and configured all the Linux servers in the network on the demand of the clients. - Performed upgrades/patches, troubleshooting, and maintenance on Linux servers. - Maintained Apache web server with integrating mod_security, mod_rewrite, mod_jk, mod_proxy. - Deployed Open-Ldap Directory Server with master-slave replication. - Maintained Apache-tomcat application server, Liferay-Portal and CAS. - Build Release setup using Jenkins, SVN, Maven, Ant. - Wrote shell scripts to simplify daily administration and routine tasks, production server’s health, log monitor/rotation/archive. - Setup KVM servers, successfully built Virtual servers to reduce hardware cost. - Production Support, Co-ordination with team members on routine issues and provided on call support for production P1 issues. - Design and implementation of system administration policies/procedures, write status reports and user technical documentation. - Deployed build release environment and automate the application code build release using shell script. - Maintained necessary back-up of the important files and prepare environment creation handbook for future references. - Basic Mysql database skills: set up Mysql replication with multiple slaves. - Accountable for rendering support for the Systems & maintaining uptime for all systems as per Customer Defined SLA’s. - Utilized software/tools to meet business needs: Subversion, Orca, Jenkins, Ant, Maven, Awstats, Webmin.

- Monitor overall status and health of Ministry of Indian Railways website http://indianrailways.gov.in which include 36 zonal websites. - Functioned as primary Linux administer and systems engineer to maintain system services and performance. - Maintained VMware VSphere 4 environment with VCenter management. - Build, configured and deployed VMs and templates and cloning of existing VM. - Maintained RHEL KVM/XEN servers, successfully migration physical server on it. - Installed and configured Redhat enterprises Linux cluster suit setup for Apache web server using GFS share storage. - Wrote and maintained shell scripts to simplify daily administration tasks. - Deployed amd managed Apache, Tomcat and JBOSS application server. - Implementation and configuration of BIND DNS Server, FTP, NFS, MySql and Qmail Server on RHEL5.X. - Monitored, troubleshoot, and resolved issues involving Linux operating systems. - Utilized open source software to meet business needs: awstats, webmin, Nagios, Alfresco content management system. - Preparing daily routine checklist of Linux Servers. - Daily usage analysis of hosted websites using webalizer and awstats. - Dealing with backup by using tar, cpio, dd, HP Data Protector Manager