SUMMARY:

• Over 8+ Years of Specialized IT experience in Linux/Solaris/Windows/Cloud/Splunk.
• System Administration experience on Installation, Configuration, Maintenance, and Administration of RHEL 4, 5, 6, Sun Solaris 8,9,10, and Windows.
• Experienced with Server Virtualization using VMWare, KVM and OracleVM.
• Experienced with different Storage Designs such as Direct Attached Storage (DAS), Network Attached Storage (NAS), and Storage Area Network (SAN).
• Experienced on Task Scheduling/Cronjobs, Systems backup and OS installation using Jumpstart for RHEL and Kickstart for Solaris.
• Experience in configuration of DNS, DHCP, NFS, LVM, FTP, Remote Access Protocol, security management and Security trouble shooting skills.
• Experienced with Disk Management Tools such as SVM, ZFS, VxVM in Solaris and LVM in RHEL.
• Experience in installing, configuration and administering of DHCP, DNS, FTP and LVM .
• Managed Linux and Windows virtual servers on AWS EC2 using Puppet Server . Configured and monitored distributed and multi - platform servers using Puppet.
• Experience with Infrastructure Development and Operations involving AWS Cloud platforms, EC2, EBS, S3, VPC, RDS, SES, ELB, EMR, VPC Auto scaling, Cloud Front & Formation, Elastic Cache, Cloud Watch.
• Worked with Amazon IAM (Identity and Access Management) console to create custom users and groups.
• Experience setting up and maintaining auto-scaling AWS stacks (using cloud formation and scripting ).
• Experience in managing DNS using Route 53 of AWS.
• Excellent knowledge of Amazon EC2, Amazon S3, Amazon Elastic Load Balancing and other services of the AWS family.
• Good Knowledge on container management using Docker in creating images. Hands on experience in creating Docker containers and Docker consoles for managing the application life cycle and setting up the automated build on Docker HUB.
• Experience with migration to Amazon web Services (AWS) from Datacenter.
• Extensive experience monitoring the servers using Nagios, Splunk and ELK.
• Configuration Management and source code repository management using tools like GIT and Subversion (SVN) .
• Expertise in Branching, Tagging, building code from repositories like GIT, Perforce, SVN (Subversion).
• Developed build and deployment Scripts MAVEN as build tools in Jenkins to move from one environment to other environments.
• Extensive experience using Maven and Ant as build tools for the building of deployable artifacts (jar, war & ear) from source code.
• Experience with build tools Ant and Maven for writing build.xmls and pom.xmls respectively.
• Worked in Agile development team to deliver an end to end continuous integration and continuous Delivery product in an open source environment using tools like Chef and Jenkins.
• Experience in using configuration management tools like Chef, Ansible and Puppet.
• Experience in Setting up Chef Workstation Working with Chef Cookbooks, Chef Recipes, Chef Attributes and Ohai.
• Worked with Ansible playbooks for virtual and physical instance provisioning, configuration management, patching and software deployment.
• Experience in designing and implementing configuration management system using Ansible.
• Delivering customer on-boarding solutions based on Ansible to ensure customer adoption of solutions and products.
• Delivered webinars and presentations based on automation solutions based on Ansible.
• Experience writing Shell and Perl Scripts to automate the deployments.
• Experienced with Nagios, Cloud Watch as IT Infrastructure Monitoring tool and knowledge on Splunk.
• Experienced with Python, and Shell Scripting Languages and passionate about learning new scripting languages on demand.
• Managed all the bugs and changes into a production environment using the JIRA tracking tool.
• Involved in setting up JIRA as defect tracking system and configured various workflows, customizations and plug-ins for the JIRA bug/issue track.
• Experience in managing automated multiple continues, Proficient in tracing complex build problems, release issues and environment issues in a multi-component Environment.
• Involved in writing Python, Perl and shell scripts for compilation and deployment process.
• Team player with excellent interpersonal skills, self-motivated, dedicated and understanding the demands of 24/7 system maintenance and has good customer support experience.
• Strong appetite for learning new technologies with positive attitude.

TECHNICAL SKILLS:

Platforms: Linux (Red Hat 4.x, 5.x, 6.x), Unix (Solaris 8,9,10,11), Ubuntu (12.04,14.04), Windows.

Programming Languages: Python, Perl, Bash, Ruby and Java ScriptVirtualization: VMWare ESXi, AWS (EC2, Elastic Beanstalk, ELB, Route53, S3, Cloud Front, SNS, RDS, IAM, Cloud Formation).

Version Control Tools: GIT, Subversion

Networking: HTTP/HTTPS, FTP, NFS, SMB, SMTP, SSH, NTP, TCP/IP, NIS, DNS, DHCP, LDAP, LAN, WAN, Routers/Switches

Storage: NetApp 7 Mode, NetApp Cluster Mode and Oracle ZFS appliance

Build tools: Ant, Maven

CI and CD tools: Jenkins, Bamboo

Configuration tool: Ansible, Puppet and Saltstack

Cloud Technologies: AWS

Web/Application Servers: Web logic, JBoss, WebSphere, Apache Tomcat

Bug Tracking Tools: JIRA, Fisheye

Monitoring Tools: Nagios and Splunk

PROFESSIONAL EXPERIENCE:

System Administrator/DevOps Engineer

Confidential, Los Angeles, CA

Responsibilities:

• Responsible for Installing/Configuring/troubleshooting within a large-scale global Linux based CDN environment.
• Installed and configured of hardware and OS (Ubuntu 12.04, 14.04) on x86 servers.
• Perform planning, configuration, deployment and maintenance work associated with the production environments, supporting 25,000+ Linux servers globally, using KVM based Virtual Machines and bare metal servers.
• Worked on Salt-Stack as the Configuration Management tool. This include Salt-Master and minion set up and configuring Minions, Create, Update and modify Salt Formula and push them to Git.
• Experience on deploying OS using FAI as an Automated unattended installation on Bare Metal servers across the world.
• Strong knowledge in designing and implementing VLANS and network design in the entire infrastructure.
• Actively participate in evolving design and architecture of infrastructure automation, release tools and processes.
• Expertise experience in Systems/Network Administration/Troubleshooting.
• Build several Virtual Machine’s as per the owner requests.
• Worked on Scripting (Bash, Python).
• Expertise experience in upgrading/patching thousands of servers in low traffic time.
• Experience in designing workflow for implementing Bots in slack using Rest-Api for automated server provisioning and several repeated tasks.
• Experience on running/troubleshooting tests before/after Cluster maintenances during down time.
• Worked on many pop maintenances across globally, including monitoring servers and in low traffic time upgrading servers.
• Experience on deploying CDN Clusters in different server regions.
• Using monitoring tool ELK/Nagios.
• Support for Live/On-Demand configurations utilizing various streaming technologies.
• Customer service notification/resolution/updates/ticket queue monitoring.

Environment: Ubuntu 12.04 /14.04, KVM, Dell PowerEdge R730 (rack mounted), SVN, Git, Saltstack, Nagios, ELK.

DevOps/Linux Administrator

Confidential, San Diego, CA

Responsibilities:

• Involved in installing, administrating and supporting more than 300+ servers including but not limited to Solaris 8/9/10, RHEL 4/5/6/7.
• Worked with Linux performance tuning to add tuning parameters to the kernel and optimize the kernel.
• Hands on experience in Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.
• Strong experience in Creation and managing user accounts, group, password, security, rights, disk space and process monitoring in Solaris and Redhat Linux.
• Exposure and experience on handling NFS share mode operations in ZFS Oracle Storage at share and project level by automation.
• Configured and worked on scripts for DNS look up tests on net group, auto mounting and unmounting the shares at Linux end.
• Experienced on migrating LDAP configuration to host by index at server end.
• Worked on creating and exporting the volumes in Netapp Storage.
• Experienced on migration of LDAP in Netapp.
• Worked on creating and maintaining of ZFS file systems.
• Administered KickStart for RHEL 5/6 to perform image installation through network.
• Managed data stores and Vcenters with VMware Installation and ESX hosts’ configuration.
• Installed Patches/Packages on Solaris Servers and RPM packages on Linux Servers.
• Responsible for Designing SAN architecture, monitoring SAN disk.
• Used LVM for creating Volume Groups, Logical volumes, and disk mirroring fixed the problem of Stale and partially mirrored Logical volumes.
• Built a new CI pipeline. Testing and deployment automation with Docker, Jenkins, and Ansible.
• Monitoring using Ansible playbooks and has integrated Ansible with Jenkins
• Worked on Ansible tower and deploying software using Ansible tower.
• Worked on monitoring tools to configure Nagios and splunk.
• Worked on configuring Alerting mechanisms with Nagios, error logging, performance monitoring.
• Worked on Nagios Dashboard with creating custom alerts and plugins with Nagios .
• Worked on creating plugins to monitor application filesystems.
• Expertise in system and network monitoring tools Nagios and eHealth.
• Worked on AWS Code deploy, AWS lambda, AWS RDS.
• Worked on migrating VMware to EC2 instances.
• Worked on AWS VPC, AMI and IAM roles.
• Collaborated with development team to troubleshot and resolve issues.
• Documented projects software release management procedures with input decisions.
• Automation of daily tasks using Shell and Perl scripts.
• Used JIRA as a Change Management/ Work Management/ SCRUM Agile Tool.
• Build, configured and support Application team environments.
• Experience with tools like Maven and Ant.
• Established processes and tools to maintain code base integrity, including check-in validation rules and branch/merge processes.
• Developed a PaaS and SaaS for our staging, production environments.
• Created Jenkins Workflows for pre-deployment process (DB execution, Environment configuration changes etc.) on both QA and preproduction Environments
• Experience with configuring and working on Docker.
• Used the Elastic Beanstalk to create the web applications with the integration of Docker.
• Worked on Docker container snapshots, attaching to a running container, removing images, managing directory structures and managing containers.
• Experience working on several Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry.
• Experience working on Docker hub, creating Docker images and handling multiple images primarily for middleware installations and domain configurations.
• Startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation using shell scripting (BASH, KSH) and Perl.
• Worked on package and patching management and debugging in all flavors.
• Worked on Ruby and Python scripting.
• Involved with the Customer care and Deployment teams in trouble shooting and fixing day-to- day problems of the applications in production on 24/7 schedule.

Environment: Solaris 8/9/10, Red Hat Linux 4/5/6, VMware ESX4, Volume Manager (VxVM), ZFS, VERITAS net backup, and SAN, IPMP, GIT, Bamboo, Puppet, Nagios, Docker, LDAP, Oracle ZFS, NetApp 7 Mode & Cluster Mode VERITAS Net Backup 6.x.

Linux/DevOps Administrator

Confidential, Columbus, OH

Responsibilities:

• Performed system administration activities using used NFS, NIS, DHCP, FTP, Send mail, and Telnet for Linux.
• Designed, Built, Configured and Troubleshot RedHat Linux 5/6 and Solaris systems.
• Managed various file system and added Disk Space on the Linux and UNIX servers.
• Troubleshot and monitored various performance related issues using performance monitoring utilities like VMSTAT, NETSTAT, TOP, IOSTAT and SAR.
• Updated and installed packages and patches for all the servers.
• Installed and configured apache web servers on various Linux and UNIX servers.
• Monitored system logs and important messages for warnings and errors of the software and hardware failure.
• Wrote Python and Bash scripts for system administration and automation, such as automate the regular tasks like removing core files, taking backups of important files, file transfers among servers, etc.
• Used Git as source code management tool, creating local repo, cloning the repo, adding, committing, pushing the changes in the local repo, saving changes for later (Stash), recovering files, branching, creating tags, viewing logs, etc.
• Used Jenkins as continuous integration tool, creating new jobs, managing required plugins, configuring the jobs selecting required source code management tool, build trigger, build system and post build actions, scheduled automatic builds, notifying the build reports, etc.
• Used Maven (POM.xml) and Ant scripts (build.xml) as build frameworks/scripts.
• Used Nagios as IT infrastructure monitoring tool, Monitoring host resources such as processor load, disk usage, system logs, monitoring applications, services, and network protocols.
• Configured startup run scripts to run the services.
• Worked with VxVM, ZFS, SVM, LVM disk management utilities in Linux and Solaris.
• Worked on various storage technologies, FC SAN, iSCSI SAN, and NAS storage.
• Configured servers to provide networking services, including HTTP/HTTPS, File Transfer Protocol (FTP), network file system (NFS), and server message block (SMB), Simple Mail Transfer Protocol (SMTP), secure shell (SSH) and Network Time Protocol (NTP).
• Developed Shell script to list recent ‘n’ number of builds for all the components.
• Worked in atmosphere of cross-functional team within the organization’s agile project life-cycle.
• Expertise in build and deployment automation using Vagrant, VMWare ESX, Docker containers, Puppet and Chef.
• Experience with configuring and working on Docker.
• Set up system for dynamically adding and removing web services from a server using Docker, Nginx .
• Responsible for Deployment, automation and installation of servers via Puppet and Chef.
• Configured the IT infrastructure as code writing manifests, classes, and modules in Puppet.
• Involved in leading Automation Deployment Team by working with Puppet.
• Worked with various services of AWS, EC2, Elastic Beanstalk, ELB, Route53, S3, Cloud Front, SNS, RDS, IAM, Cloud Watch, and Cloud Formation.
• Manage AWS EC2 instances utilizing Auto Scaling, Elastic Load Balancing and Glacier for our QA and UAT environments as well as infrastructure servers for GIT and Puppet.
• Design roles and groups using AWS Identity and Access Management (IAM).
• Developed Chef Recipes to configure, deploy and maintain software components of the existing infrastructure.
• Troubleshot and configured Symantec Enterprise Security Monitoring Tool.
• Provided 24x7 production support for 700+ Linux and Solaris OS.
• Presented weekly system status report and maintained documentation reports.

Environment: Red Hat Linux 5.x, 6.x, 7.x, Hardware: HP ProLiant, DL-360, 380, 580, 980 G6/7/8/9. HPSC, LVM, Linux, Shell Programming, VMware-VSphere, IBM WebSphere V6.1/5.1, TSM, GIT, Jenkins, Web logic, Nexus, Sonar, JIRA, Python, Ant, Maven, AWS, Tomcat, MC Vmax, Docker.

Linux/DevOps System Administrator

Confidential, Bloomington, IL

Responsibilities:

• Support for Windows and Linux problems assigned by client operations.
• Providing 24X7 and on-call in production support.
• Administration of RHEL 5,6,7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting on both Pseries and VMware virtualization systems
• Creating, cloning Linux Virtual Machines, templates using VMware Vsphere client 5 and migrating servers between ESXi hosts.
• Installing RedHat Linux using Kickstart and applying security polices for hardening the server based on the company policies.
• Performed package administration on Linux using RPM and YUM through RHN Satellite and subscription manager.
• Build and configure a virtual data center in the Amazon Web Services cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, Cloud Watch, Cloud Trail, and Security Management VPC.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.
• Worked on Docker and created virtual instances with Docker.
• Experience with Docker. Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
• Worked on AWS OpsWork, AWS Lambda, and AWS code deploy AWS cloud formation and cloud foundry.
• Install, configure and administer log analyzer tool Cloud Watch.
• Worked on migrating VMware to AWS using snowball and VM Import/Export.
• Experience with AWS bean stalk.
• Experience working on AWS code deploy, lambda, VPC and CLI.
• Experiencing with Nagios, splunk and snmp monitoring.
• Worked on research of ELK (Elastic search).
• Configure EC2 Instances, VPC, Route 53, ELB, Subnets, etc.
• Automate site configuration using Puppet.
• Experience with shell scripting (sh, bash, csh, ksh)
• Worked on Docker and have done deployments on Ubuntu.
• Worked on version control using Github.
• Worked on automating builds using Jenkins.
• Worked on automating tasks using puppet
• Worked on tomcat, Jboss install configuration and mongodb, mysql.
• Deploy Puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
• Involved in RPM package building according to the requirement using fpm and deploying the package using puppet enterprises to puppet agent.
• Worked on creating queues for new data center and reporting on console for finalization.
• Used UNIX/Linux shell scripting to automate system administration tasks, system backup/restore management and user account management.
• Implemented and administered In-System Replication using Shadow Image.
• Creation of Oracle and MS-SQL server databases. Maintenance of tables paces in oracle.
• Backup and restore of databases in Oracle and MSSQL Server DB’s.
• Performing Manual backup and resume of the servers or data using Net backup and TSM (Tivoli Storage Manager).

Environment: RedHat LINUX 5.5/6.3, Ubuntu, Windows, Oracle, DB2, Jenkins, Git, Subversion, Vsphere, VMware, Azure, AWS, Docker, Chef, Puppet, Apache Webserver, JBoss, WebSphere Application Server & UNIX shell scripting.

Linux/Unix Administrator

Confidential, Atlanta, GA

Responsibilities:

• Worked with 350+ servers with RHEL 5.x, 6.x and Solaris 9, 10 servers.
• Installed, and configured RHEL using Kickstart and Solaris 9, 10 using Jumpstart.
• Implemented virtualization environment using VMware ESXi 5.5, ESXi Cluster, and vCenter Server.
• Created, configured and maintained virtual machines in VMware ESXi with different OS.
• Created clones, and snapshots of virtual machines in VMware ESXi.
• Migrated VMWare Virtual servers from one host group to new host group using vMotion.
• Involved in server migration from Solaris to RHEL, and from physical server to virtual server.
• Improved service levels by guaranteeing appropriate resources to virtual hosts using VMWare Distributed Resource Scheduler (DRS).
• Created, and maintained large file systems with EMC and Netapp SAN devices.
• Managed the Disk using SVM, ZFS, VxVM in Solaris, and LVM in Redhat.
• Provided user administration like adding or deleting users, groups, group membership, and password aging.
• Wrote Scripts for automation of administration tasks.
• Implemented system upgrades including hardware, operating system and patch upgrades.
• Wrote manifests, classes, and modules in Puppet to automate and configure packages, services, files, directories, cron jobs and other resources in servers with various OS.
• Wrote Shell and Python scripts to automate admin jobs such as monitoring the servers for resource consumption, processes running, file handling such as moving, copying and renaming files, reading data from the files etc.
• Wrote Crontab for scheduling of automatic repetitive jobs, and executing shell scripts.
• Installed and configured MS SQL server, JBoss and Oracle in Linux server.
• Debugged day to day issues and problem relating to systems, software and servers.
• Documented application configuration details in Solaris, and RHEL environment.
• Provided 24x7 on-call supports for 350+ servers.

Environment: RHEL 5.x, 6.x, Solaris 9, 10, VMWare ESXi 5.5, Netapp, VMware DRS, vMotion, SAN, VxVM, LVM, Puppet, Shell Scripting, Python, MS SQL server 2008, Oracle 11g, Jboss 6.x, Tomcat 7.

Linux/Unix Administrator

Confidential

Responsibilities:

• Installed and configured Solaris 8,9,10 using CD media, Jumpstart and RHEL 4.x, 5.x using CD media, Kickstart.
• Administered and troubleshoot Solaris and RHEL installed on Sun Fire and IBM blade.
• Implemented system upgrades including hardware, operating system and patch upgrades.
• Created, modified, and deleted users, groups and group memberships as per requirements.
• Analyzed and monitored resource utilization, and system performance using various system tools such as vmstat, sar etc.
• Made backups of the directories and files using the tar, gzip, and gunzip tools.
• Wrote Shell scripts for monitoring the systems and applications such as monitoring the processes in all the servers, and also run cron jobs using Cron and at.
• Managed volume and file system using VxVM, SVM and ZFS on Solaris and LVM in Linux.
• Configured NFS on Solaris and Linux servers.
• Created and maintained Solaris 10 zones.
• Installed Apache Web Server, Web Logic Application Server, and Oracle database in the servers.
• Configured domains, admin and managed servers in Web Logic application server to deploy Web/Enterprise applications.
• Involved in documentation of Solaris and RHEL environment and configuration details.

Environment: Sun Solaris 8, 9, 10, Redhat 4.x, 5.x, IBM Blade, RHN satellite server, Sun update manager, cron, scripting, VxVM, SVM, ZFS, LVM, Apache, BEA WebLogic 8.1, Oracle 9i.

Linux/Unix Administrator

Confidential

Responsibilities:

• Worked with around 200 servers with Solaris 8,9,10 and RHEL 4.x and 5.x platforms.
• Used live upgrade to upgrade Solaris servers from 8, 9 to 10.
• Installed and configured VxVM and VCS, and used VCS, and Veritas Foundation Suite (VxFS) to provide high availability and storage management.
• Configured Veritas NetBackup for backups, and file restoration.
• Worked with Disk management tools such as LVM in Linux and SVM, ZFS, VxVM in Solaris.
• Used VxVM to create Disk groups, volumes and filesystems with different RAID levels.
• Created metadevices, soft partitions, mirroring the devices and metasets.
• Configured LDAP in Solaris and Linux server.
• Monitored services such as Disk Space, CPU usage, Memory usage, Temperature of the equipment, HTTP, Mail, SSH etc. using NAGIOS.
• Involved in troubleshooting performance tuning issues with applications such as Web Logic and the operating systems which included Solaris and RHEL.
• Implemented NIC bonding in RHEL and IPMP in Solaris.
• Worked on F5 load balancers to load balance and reverse proxy Web Logic Servers.
• Worked on day to day administration tasks and resolve tickets using Remedy.
• Monitored and debugged day to day issues and problem relating to systems, software and servers.
• Provided 24x7 on-call support.

Environment: Sun Solaris 8, 9,10, Redhat 4.x, 5.x, Sun Fire 4800, 6800, 6900, M5000, M8000, IBM Blade, RHN satellite server, Sun Update manager, cron, scripting, VxVM, SVM, ZFS, LVM, Apache 2.2, BEA WebLogic 8.1, Oracle 9i, Nagios 3.0, VCS 4.0, VxFS, Veritas NetBackup 5.