SUMMARY:

• 5 plus Years of detailed oriented DevOps / Linux System Administrator/Engineer, with an excellent background in wide variety of professional system support and solution - based IT services for Linux systems/ server administration.
• Experienced in administering and managing system in multiplatform/ multivendor environment consisting of both physical and virtualized systems by incorporating best practices in the IT industry.
• A self-motivated professional with excellent team capabilities, coupled with adaptive skills when working in a new work environment and/or projects.

TECHNICAL SKILLS:

Operating System: Mac OS, Windows 3.x, 9x, XP, Vista, 7, 8, Server 2000, Server 2003, Server 2008, VMware ESX and ESXi, Ubuntu, ESXI, and Linux RedHat RHEL /Centos (5 &6XX servers).

Software: RedHat RHEL Satellite Network, Spacewalk, Munin, HP Service Manager, Subversion, Trac, Kickstart, RPM Package Building Tools, Linux Clusters, Vagrant, Ansible, Puppet, Bash scripting, Putty and Open SSH protocols, VSFTP, vSphere, Cacti, Wireshark, VMware vCenter, Windows Server Update Service, Nagios, MySQL, Apache, Nginx, SFTP, OSSEC, DenyHosts, Symantec AV Server/Client, Veritas Backup Exec, Cisco VPN, WINSCP, DNS, DHCP. Experience with server virtualization, Load-balancing, High availability and Clustering technologies.

PROFESSIONAL EXPERIENCE:

Confidential, Baltimore, MD

DevOps Consultant

Responsibilities:

• Manage vSphere ESXI clusters and virtual machines using VMware vCenter with enterprise needed features such as High Availability (HA), Vmotion, Distributed Resource Scheduler (DRS) enable
• Implemented AWS with in our infrastructure
• Managed and deployed apache, mysql, Jenkins, puppet, splunk and tomcat with in our environment
• Deploy and manage full system backups using VMware Data Protection (VDP) appliance within VCenter
• Maintain both the upgrade and migration path needed by critical mission applications currently running on Solaris prior to migration to RedHat 6 production environment
• Maintain overall Datacenter Redundancy based on VMware cloud offering between two SSA Datacenter in Durham, NC and Woodlawn MD
• Modify, build and rebuild rpm packages and patch from source files using RedHat and Fedora packaging tools
• Deploy VMware Virtual Data Protection (VDP) for backing up VMs running in vCenter cluster
• Kickstart both Virtual Server and bare-metal installation of RHEL6 and CentOS servers
• Build Perl modules from CPAN, obtaining the specs files convert them to .rpm format for installation on both RHEL and Centos Servers
• Configured RAID and Create LVM partitions on Dell PowerEdge 11th and 12th generation Servers
• Installed apache webservers, create v-host and synch required databases
• Study, document the upgrade processes for Mediawiki running the internal help and how-to pages
• Setup Munin and Cacti server to monitor systems metrics such as uptime, services and file systems, disk usage, CPU utilization, memory stats
• Manage VMware development test hosts and migrate stable applications to RHEL6 production environment
• Deploy servers using RedHat satellite profiles, registered machines and manage set alert to ensure up-to-date servers
• Manage ESXI host and VMware Virtual machine upgrade as required
• Setup and configured SSH File Transfer Protocol (SFTP), VSFTP and other protocols
• Installation, configuration and administration of VMware ESXI, vCenter, vSphere Client and Linux / Windows clients
• Performs overall Linux admin daily task such user management, Cron jobs, backups, ticket resolution, troubleshooting and updating application patches
• Working knowledge of HP service manager, version control such as subversion and GIT and configuration management tools
• Managing the Puppet automation test labs for documenting the migration path of SSA Perl codes, modules and application from Solaris based servers to RHEL 6 and 7 servers

Confidential, Rockville, MD

DevOps / Linux Systems Administrator

Responsibilities:

• Responsible for setting-up, managing and rapid deployment of RHEL 6.xx / Centos 6.xx linux servers using Kickstart
• Working knowledge of Ansible and Puppet automation tools for system-wide configuration and management of Linux servers
• Booting PXE from RHEL Satellite Network and Centos Spacewalk for unattended linux server deployment for both virtual machine and bare metal installations
• Manage vSphere ESXI host and virtual machines using VMware vCenter
• Setup, manage and deploy Vagrant-testing environment for developers using customize Vagrant-Files as per requirement
• Manage and configure RPM package building tools for building and patching of applications from source codes for Centos and RHEL systems
• Built portable Vagrant Boxes from ground up for Centos and RHEL Distros by automating rapid installations of applications and services
• Setup and configured SSH File Transfer Protocol (SFTP), VSFTP and other protocols
• Installation, configuration and administration of VMware ESXI, vCenter, vSphere Client and Linux / Windows clients
• Installation, configuration, administration and hardening of Apache Webservers
• Setup Virtual Linux test labs and clones for developers and engineers using VMware
• Monitored server performance on Red Hat Linux 5 & 6 servers; Installation of patches and packages
• Manage systems routine backup, enabling cron jobs, enabling system logging and network logging of servers for maintenance
• Follow upgrade roadmap involving installation/upgrades of servers hard drives and memory
• Installation and configuration of intrusion detection system such as DenyHosts for log analysis; file integrity checking, real time alerting and brute force attach prevention
• Setup and manage user accounts and train new users on the company system environment; reset password and unlock locked user account on RHEL 5.xx & 6.xx
• Troubleshoot and fixed NFS, TCP/IP and other protocols problem
• Responsible for the installation of RedHat and Centos Linux for new build environment
• Diagnosed and resolved customer's connectivity issues in RHEL 5& 6 servers
• Managing all types of installation and upgrade on Linux servers
• Ticket assessment on a daily basis.
• Setup and configured SSH File Transfer Protocol (SFTP)
• Configuring and managing network interface
• Image servers and client computers and remotely manage their software after deployment on RedHat Linux 5 & 6
• Provide software and hardware tech support; 24/7 on call support as required
• Create and Clone Linux, Window Virtual Machines using VMware Virtual Client ESX and ESXi.
• Performed RPM and YUM package installations, patch and other server management;
• Responsible for troubleshooting software and network problems
• Troubleshot network problems on Linux and Window servers
• Job scheduling and automating process using Cron job
• Create trouble tickets to track, diagnose and resolve network problems
• Installation of hardware, software and upgrading to ensure work is performed as per the company policy on various hardware platforms
• User account management and administration; Troubleshooting User's login & home directory related issues
• Building servers with jumpstart using Kickstart, CD on timely basis, along with corporate wide requirements.
• Configuring and managing network interface
• Researched extensively on the principles of Ion Trappings and Development of a Physical Model
• Develop computer programs for analyzing and sorting of experimental data from Ion dissociation by laser experiments using Open source Linux tools
• Serve as teaching assistants and grader for introductory and advance undergraduate classes in physics
• Responsible for the coordination of over 100+ students per week in undergraduate experimental labs
• Physics tutor at the department of physics student help center
• Serve as a research mentor/ assistant to undergraduate students on research and poster presentations
• Extensive knowledge and usage of Simulation tools and Electronics circuit development tools

Confidential, Washington DC

Systems Administrator

Responsibilities:

• Monitored the health and stability of Linux and Windows System Environments
• Install and Configure LAMP
• Administer File Managements and permissions
• Scheduled Automated Linux tasks with Crontabs
• Maintain user accounts and permissions
• Configure Apache Tomcat Servers
• Set up Apache proxy server
• Creating Kickstart files to automate a red hat enterprise Linux Installation
• Responsible for network Architecture, included over 30 Linux and Solaris Servers
• Installed, upgraded and patched Red Hat Linux, Windows 2000, Windows XP, and Solaris
• Analyzed network traffic using Sniffer tools, optimized network performance and balanced network load bandwidth.
• Worked and installed Blade servers
• Provisioned VM servers for customers
• Used Bash scripts for file management
• Created Rsync scripts for backups
• Set up mount points for Mysql Database
• Deployment of new applications on Linux servers