SUMMARY:

Professional Experience in Infrastructure Engineer, DevOps Engineer, System Administration and Level II Linux Engineer

WORK EXPERIENCE:

Confidential

Infrastructure Engineer

Responsibilities:

• Involved in day - to-day Operational maintenance, Support, OS installations and upgrades, On Call Rotation and Utilizing Enterprise Support.
• 24/7 Support for Production environment for Confidential for 1 year and Support Dev, QA, sandbox, Stage Environment for Development.
• Installation, configuration and upgrade of RedHat Linux 5/6/7, SUSE 10/11/12 operating systems. Configuring SLES 15 and RHEL 8 with application customization.
• Infrastructure Support and Development for Major application like SAP, EDI, EMT, IAM Among 2000+ servers which includes Physical (CISCO UCS, IBM SYSTEM X) and VM’s.
• Developed automation framework for Application Deployments to the cloud environments (AWS and A)
• Experience in building Servers using Kickstart in Linux, NIM in AIX, Jumpstart in Solaris, Manual installations.
• Automating Linux Environment by maintaining Stable configuration files among all application environments by using Enterprise Puppet and BIT Bucket
• Managing /etc/passwd, /etc/groups, Sudoers, Sudoers.d, syslog, rsyslog, ntp.conf, resolv.conf by using Puppet Enterprise.
• Managing Net Zones, Quest and Vastool configurations, maintaining OU Structure by Configuring through Puppet Enterprise.
• CA Robot Monitoring configuration on Severs and Managing infrastructure.
• Automating Build Process configuring using Puppet and Deploying Templates on vmware environment from Content library.
• Support and configuring according to application upgrades and Solve communication and performance Tunning among UNIX, Linux software & hardware.
• Worked on Installation and configuration of DevOps tools ( Jenkins, Docker, Git (GitHub), BitBucket, Puppet, ).
• Creating environment and managing DOCKER.
• Created various Modules and Manifests in puppet to automate various applications.
• Extensively worked on creating Puppet modules as per the business requirement.
• Experienced in WAMP (Windows, Apache, MYSQL and Python/PHP) and LAMP (Linux, Apache, MySQL, Python/PHP) Architecture.
• Configured AWS IAM and Security Group in Public and Private Subnets in VPC.
• Created AWS Route53 to route traffic between different regions.
• Involved in SUSE Manager Patching and upgrade, Managing Enterprise packages to all Servers.
• Involving in Optimiz-IT Migration of applications from older environment hardware over to Cisco UCS environment running Red Hat Linux P2V migrations of hardware servers to VMWare environment running on ESX V5 servers. Ongoing maintenance and support of several hundred Solaris and RHEL servers, operating with a wide variety of applications, running on both physical and virtual machines.
• Replicating Multiple data centers storage and migrating vm’s among DataCenters.
• Installation, configuring and administration of DNS, NIS, NFS, NTP, Samba, SNMP & DHCP servers and troubleshooting Network issues among Vmware environment.
• Configuring work stations for Client training on Red Hat & SUSE.
• Performed Branching, Tagging, Release Activities on Version Control Tools: SVN, GIT, BitBucket.
• Developed shell and python scripts for automation of the build and release process, developed Custom Scripts to monitor repositories, Server storage. Implementing and configuring Python Virtual environment for application use.
• Managing VMware Templates (in VMWARE content library) and AWS Cloud Formation Templates.
• ITIL processes on request management and incident management.
• Create scalable and load balanced asynchronous processing actions using job queues.
• Hands on experience in managing AD and Security groups. Managing AD and Security groups by using puppet Enterprise.
• Resolved workstation registration, import & inventory management issues and built user, server & workstation container objects and automate testing integration for application Development
• Updating, Upgrading, Installation, Managing licenses, Subscriptions. Channel configurations, Repo’s for Different Bundled O.S on SUSE manager and RHEL Satellite.
• Managing Spacewalk and RedHat Satellite Repo’s by Puppet Enterprise.
• Cisco UCS Hardware upgrade (CPU, Memory, blades replacement etc) and firmware upgrades. Support for Intel server blades, Dell PowerEdge servers.
• Troubleshooting vSphere/ESXi Cisco UCS performance related issues. vSAN 6.0 configuration including hardware configuration, configured netapp SAN storages for the VMware environment.
• Configure the network and security layer (vlans, routing table in L3 switches, Cisco ASA firewall etc) for VMware environment.
• Involved in Backup Snapshot and DB’s Backup on AVAMAR Backup.
• Doing capacity Assessment for new requests of servers i.e. calculating CPU and Memory for new servers according to the current/future Applications running on the system.
• Installation and Configuring ACANO OS, Tanium Master and DDOS Servers
• Deep understanding in TCP/IP network troubleshooting issues.
• General Parallel File System (GPFS) installation, configuration, administration, troubleshooting, migration, adding/deleting new clients in cluster, adding/deleting new file systems, and more.
• Tier 1 level system administration with Red Hat Enterprise Linux (RHEL) and SUSE Enterprise.
• Hands on Experience on Shell Scripting.

Confidential

DevOps Engineer

Responsibilities:

• Built and managed a large deployment of Red Hat Linux instances systems with Chef Automation and provision virtual servers using vagrant and kitchen in Oracle VM virtual box, provisioned servers in Amazon EC2.
• Creating the automated build and deployment process for application, re-engineering setup for better user experience, and leading up to building a continuous integration system for all our products.
• Implemented AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups.
• Responsible for Design of different Release Environments for new projects.
• Implementing new projects builds framework using Jenkins & maven as build framework.
• Implementing a Continuous Delivery framework using Jenkins, Chef, Maven & Nexus in Linux environment
• Managed Chef Cook books to automate system operations.
• AWS Cloud management and Chef Automation.
• Integration of Maven/Nexus, Jenkins, Urban Code Deploy with Patterns/Release, Git, Confluence, JIRA and Cloud Foundry.
• Using Jenkins AWS Code Deploy plug-in to deploy to AWS.
• Member of CCM representing changes for Release and environment configuration.
• Created the automated build and deployment process for application, re-engineering setup for better user experience, and leading up to building a continuous integration system for all our products.
• Implemented AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, and Autoscaling groups, Optimized volumes and EC2 instances.
• Perform Deployment of Release to various QA & UAT in Linux environments.
• Troubleshoot the build issue during the Jenkins build process.
• Developed build and deployment scripts using ANT and MAVEN as build tools in Jenkins to move from one environment to other environments.
• Performed Branching, Tagging, Release Activities on Version Control Tools: SVN, GIT.
• Worked on Managing the Private Cloud Environment using Chef.
• Managed Chef Cookbooks to automate system operations.
• AWS Cloud management using Chef Automation.
• Developed Perl and shell scripts for automation of the build and release process, developed Custom Scripts to monitor repositories, Server storage.
• Automated the cloud deployments using chef, python (boto & fabric) and AWS Cloud Formation Templates.
• Used Maven as build tool on Java projects for the development of build artifacts on the source code.
• Implemented rapid provisioning and life cycle management for Ubuntu Linux using Amazon EC2, Chef, and custom Ruby/Bash scripts.
• Deployed the Java applications into web application servers like JBoss.
• Performed and deployed Builds for various Environments like QA, Integration, UAT and Productions Environments
• Worked on the cloud-based diagramming software called Gliffy for creating different types of design documents required for the continuous integration process.
• Troubleshooted and resolved Build failures due to infrastructure issues reduced by 95% stabilizing the build process. Setup and executed process to code review system effectively.
• Responsible for defining branching & merging strategy, checkin policies, improving code quality, automated Gated Checkins, defining backup and archival plans.
• Troubleshooted Build and Deployment Issues, with little downtime.
• Organized and Coordinated Product Releases, work closely with product development, QA, Support across global locations to ensure successful releases.
• Documented release metrics, software configuration process. Used Maven scripts to build the source code. Supported and helped to create Dynamic Views and Snapshot views for end users.
• Deployed RHEL Satellite server with custom repositories to provide a stable management solution for the Linux environment.
• User, Group Administration and Advanced File Permissions.

Confidential

System Administrator

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 5/6, AIX 5/6, Cent OS 5.8, Solaris operating systems.
• Configured and installed AIX, Solaris and Redhat Linux Servers using NIM, Jumpstart, and Kickstart.
• Remote monitoring and management of server hardware.
• Perform Enterprise Security Management (ESM) upgrades on Solaris and Linux environment and add the ESM managers to the servers.
• Worked on Installation and configuration of DevOps tools (Nagios, Jenkins, Docker, Ansible, Git (GitHub), Splunk, Puppet, Chef).
• Developed entire frontend and backend modules using Python on Django Web Framework.
• Automated application deployment in the cloud using Docker technology and using Elastic Container Service scheduler.
• Analytical Purposes we use ELK (Elasticsearch, Logstash, Kibana ).
• Created and managed a Docker deployment pipeline for custom application images in the cloud using Jenkins.
• Participated in the programming work of interfaces about OPEN API utilizing Java.
• Implementing Web Hooks for automated Monitoring, Logging and Testing
• Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Installed and administered Tripwire applications in tier 2 and tier 3 environments.
• Installed and deployed the KVM containers for the Open Stack Cloud.
• Installed VMware VSphere and Vcenter, Cisco Nexus 1000V VSM.
• Design, implementation, and documentation of VMware vSphere 5, vCloud Director 1.5 and 5.1, View 4.6 - 5.1, Cisco UCS systems, and EMC SANs.
• Installed and deployed the VMware ESX containers for the VM cloud and Vsphere.
• Worked closely with Cloud teams to build and deploy VM's using Open Stack and VMware.
• Worked with audit teams and provided them with the File system modifications using Tripwire tool on various distributions of UNIX.
• Performing initial Cisco UCS cluster setup and provide management IP addresses for blade servers and on managing Cisco FlexPod (UCS) environments.
• Managing the VMWare ESX and ESXi server based on requirement.
• Installing and Managing Virtual Center 5.5. Upgrading from VMWare ESX server from 3.5.0, 4.0.0, and 5.0 in environment.
• Instllastion and configuration of VMware vSphere 6.5 (vcp6.5-dcv).
• Experience working in VMware ESX (VSphere) 4.x, 5.x hypervisor for virtualization and installed different OS such as Solaris, Linux (RHEL), Windows.
• Monitored ESX server alarms and VM's alarms and acted on those incidents to resolve.
• Created change tickets for the changes made on ESX servers and guest OS
• Used VMotion to Hot and Cold migrated VM's from one ESX server to different ESX server.
• Implemented V2V and P2V conversion using VMWare Converter.
• Proper power down and up process during Maintenance of ESX hosts or power outage.
• Performed Vmotion using the VCenter 5.0 on the ESX machines for migrating the VMs online.
• Installed NoSQL databases MongoDB and Cassandra.
• Upgraded and maintained software packages on servers using RHEL Satellite and Repository servers.
• Managed patching for Linux & Windows Servers.
• Shell & Perl scripting.
• Worked on SAN, NAS and DAS storages with HBA card configuration and different level of RAID configuration.
• Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
• Migrated WAS 5.0 Network Deployment and Base on Windows platforms to WAS 6.0 ND.
• Experience in NetApp storage devices, setup, configuration, operations and connecting to pSeries hardware.
• Install, configure, and administer BEA Weblogic 8.1, IBM Websphere and JBOSS 4.0.1/3.2 in clustered and non-clustered environment.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• NFV and SDN for network virtualization and automation.
• Monitoring: with Nagios, Splunk, MySQL Dashboard, Cacti .
• Manage users accounts for the team access for RHEL Satellite server.
• Build Channels and pull packages from master RHEL Satellite server.
• Deployed RHEL Satellite server with custom repositories to provide a stable management solution for the Linux environment.
• User, Group Administration and Advanced File Permissions.

Confidential

Linux Engineer

Responsibilities:

• Linux/Unix admin work via picking up tickets, setting up users and keys, troubleshooting performance issues on Solaris 8, 9 and Red Hat Enterprise Linux (3,4) platforms.
• Installed and Configured Oracle on Solaris 9/10 and RHEL Linux Environment.
• Monitoring System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization.
• Recommended Sun OS kernel/OBP patch upgrade for production/development servers.
• HBA firmware upgrades on Solaris servers, HP ILO component upgrades.
• Maintaining the regular backups using tar, ufsdump, ufsrestore, Veritas NetBackup etc.
• Managing system processes and scheduling processes with the cron utility.
• Configuring the services for sharing the resources from Unix such as remote login through TELNET, FTP, SSH, SFTP, SCP.
• Installation, configuration, trouble shooting and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, NIS+ and Samba Web servers on Sun Solaris, and Linux platforms.
• Installed and administered RHEL systems providing fIS infrastructure (mail, web, FTP, streaming media).
• Creating, cloning Linux virtual Machines , templates using VMWare Virtual Client 3.5 and migrating servers across ESX hosts.
• Custom building Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
• Configuring the NFS servers, setting up servers in network environment and configuring FTP/NTP/NIS servers, clients for various departments and clients.
• Creation of LVMs on SAN using Linux Utilities
• Involved in setting up accounting systems and performing ongoing system with the administrative tasks.
• Troubleshooting and analysis of hardware and software failures for various Solaris and Linux servers (core dump and log file analysis, vendor coordination, Change control).
• Backing up and Restoring files across the network.