PROFESSIONAL EXPERIENCE:

Systems Administrator

Confidential

• Involved in migration of servers in Linux and Solaris Environment for data - center migration project.
• Upgraded Red Hat Satellite server version 5.6 to 5.8 that is used for Patching.
• Reduced Vulnerability remediation period from 3 days a week to less than 1 day a week.
• Installing, configuring and support RHEL 7.x/6.x
• Upgraded VMWare ESXi server from 5.5 to 6.5
• Built new servers from scratch using kickstart or template(RHEL) on VMWare platform.
• Worked on Patching using yum repositories on Red Satellite Servers
• Creating Custom Channels on Red Hat Satellite for deploying security advisories, errata, and newly release packages.
• Remote System administration via tools like SSH and console access.
• Performed day-to-day administration tasks like User Management, Space Monitoring, daily Health Check using FogLight.
• Shell scripting to automate regular tasks like removing core files, taking backups of important files, file transfers among servers.
• Worked with virtualization tools: VMware ESXi server 5.5 and 6.5, VMware Workstation, Virtual Box and Xen.
• Monitoring and administrating of Red Hat Linux on Enterprise class servers and tuning the servers for better efficiency. Performed patching of RHEL using yum, and rpm.
• Hands on experience on various networking Protocols. Done file transfers via FTP.
• Used puppet for various LINUX ADMIN RESPONSIBILITIES like Managing User accounts & Group Management, creating Files & Directories, for Package Management & Configurations, Managing Services like Logical Volume Management, Task Scheduling for Systems and Backups

Linux System Engineer

Confidential, Hyatville, MD

• Installing, configuring and support RHEL 7.x/6.x, Solaris 10/11
• Built new servers from scratch using kickstart (RHEL) and jumpstart (Solaris)
• Worked with multi-terabyte backend SAN storage and EMC storage systems using LVM, Veritas Volume Manager, ZFS, SVM, etc.
• Worked on patching using yum repositories on satellite servers
• Successfully migrated over 100 servers in Linux and Solaris for data-center migration project, including Red Hat Linux, Solaris (zones, LDOMs)
• Strong communication skills are imperative, including assertiveness and taking ownership of issues and requests.
• Used Redhat Satellite Server for updating packages at various location of servers where it deployed.
• Migrated to Red Hat Satellite server 5.8 version.
• Shell scripting for job automation in kron and bash shells
• Linux distributions, Linux packaging and Linux Image Building and Maintenance
• Administered Linux servers for several functions including managing WebSphere, Apache/Tomcat server, mail server, MySQL database, Oracle Data Base, SVN.
• Utilized Nessus software to run vulnerability scans on TCP & UDP Ports to ensure system security
• Used Chef and Puppet on Satellite server and otherwise to do mass deployment of web servers, app servers and patching
• Remote system administration via tools like SSH and console access.
• Performed day-to-day administration tasks like User Management, Space Monitoring, Performance Monitoring and Tuning, alert log monitoring and backup monitoring.
• Provides accurate root cause analysis and comprehensive action plans.
• Works closely with HW/SW vendor support teams to resolve problems quickly.
• Installed VMware VSphere 5 and created virtual machines on ESX 5.0 Servers using Dell PowerEdge R410.
• Shell scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers.
• Worked on embedded operation systems.
• Expertise in virtualization using VMware ESX server 3.5, 4.0, VMware Workstation, Virtual Box and Xen, Redhat Enterprise Virtualization suite.

Confidential, Carrollton, GA

Unix/Linux Engineer

• Provide architectural and infrastructure operations support and consultation to enhance the continuous integration and continuous delivery pipeline.
• Practical experience in deploying pre-installation testing of both software and hardware tools to ensure smooth system installations using kickstart technology for rapid and mass deployment.
• Configure LAMP servers to work with Drupal
• Working knowledge of puppet and Subversion
• Knowledge of system security architecture and system protection and hardening by using tools like iptables, SElinux, tcpwrappers and others to ensure system availability and data protection
• Perform Linux system installation, configuration, administration, development and testing of backup and recovery methodologies.
• Perform System Analyzes, logs file reviews, tracking code bugs and resolves Software issues related to networking connectivity, printer, servers, and applications to meet business needs.
• Knowledge of deploying and building system uptime through patches upgrades and updates using tools like RPM, Yum and apt get.
• Execute troubleshooting techniques geared at isolating and diagnosing common Linux system issues and records system output to ensure continuous uptime.
• Good in automating routine tasks utilizing shell scripts, cron jobs and tar utility.
• Ability to perform network packet analysis by using TCP/IP and related protocols; TCP, UDP, IP, HTTP, HTTPS, DNS, FTP and much more.
• Give recommendations on corrective actions to ensure system high availability performance and ensure implementation of actions on change request approval.
• Regularly inspect system performance and if necessary performs backups to ensure reproduction of data prior to upgrading/updating system software and hardware components as required to meet business needs.
• Facilitate and determines appropriate techniques of installing applications and systems based on client department specifications.
• Utilize crisis management techniques to resolve matters of significance and implement corrective course of action as needed.
• Perform installations, configurations, performance testing and upgrade of system files and services
• Employed a plethora of Virtualization Infrastructures on VMware Hypervisor to ensure system uptime and high availability performance.
• Built and configured Virtual Linux Servers using ESXi and VSphere Client to ensure system scalability,optimization, management and availability needs.
• Utilized Dell PowerEdge Servers to configure and enable Virtualization and ensure system consolidation and scalability needs.
• Utilized and configured Kernel Based Virtual Machines on Red hat Enterprise Servers.
• Well organized with strong problem solving and good communication skills as well as ability to work both in teams and independently.
• Participate in technical research and development to enable continuing innovation within the infrastructure and system architecture
• Evaluate new software products and technologies, and provide recommendations to enhance existing systems or build new ones.
• Provide Tier III/other support per request from various constituencies. Investigate and troubleshoot issues
• Installed and configured Logical Volume Manager - LVM
• Documented all setup procedures and System related Policies (SOP's).
• Created and maintained user's accounts, profiles, security, rights disk space and process monitoring.
• Provided technical support by troubleshooting Day-to-Day issues with various Servers on different platforms.
• Experience building LAMP stack and configuring Apache Virtual hosts (Name based and IP based )

Confidential

Systems Administrator

• Performed the administration of RHEL thru installation, upgrading, testing, tuning, patching, and troubleshoot.
• Experience working on virtual and physical RHEL servers
• Edited scripts to help automate duties such as routine maintenance, system monitoring, & software deployment.
• Maintain servers through patch management and system maintenance.
• Install software, upgrade software, and perform troubleshooting on software applications.
• Knowledge and experience with monitoring systems, including Nagios.
• Configure and use Kickstart to perform RedHat installation, ensuring that configuration and server hardening are compatible with security.
• Perform RPM &YUM package installs, maintain, patch, and other server mgmt. duties
• Maintained and administered computer networks and related computing environments including computer hardware, systems software, applications software, and all configurations.
• Performed data backups and disaster recovery operations.
• Diagnosed, troubleshooted, and resolved hardware, software, or other network and system problems, and replace defective components when necessary.
• Planed, coordinated, and implemented network security measures to protect data, software, and hardware.
• Configured, monitored, and maintained email applications or virus protection software.
• Oversaw the daily performance of computer systems.
• Answered user inquiries regarding computer software or hardware operation to resolve problems.
• Entered commands and observed system functioning to verify correct operations and detect errors.
• Set up equipment for employee use, performing or ensuring proper installation of cables, operating systems, or appropriate software.
• Installed and performed minor repairs to hardware, software, or peripheral equipment, following design or installation specifications
• Performed operating system upgrades.
• Troubleshoot desktop applications issues while maintaining excellent customer service.
• Updated and documented helpdesk tickets.
• Maintained Local Area Networks (LAN).
• Monitored TCP/IP network environment.
• Conducted hardware and software inventory.
• Performed virus protection software installations.
• Customized user environment for users. Troubleshoot user logins using various remote login utilities.
• Scheduled cron jobs.
• Assist in the research, evaluation, testing, selection, procurement, implementation and maintenance of new software/hardware/systems.
• Documented customer and software configurations and developed and/or updated standard operating procedures and training materials.

Confidential

Help Desk Technician Tier II

• Troubleshoot problems with operating systems, applications, remote access, email, telephone, and wireless issues.
• Maintaining Local area networks.
• Monitoring TCP/IP network environment
• Assist in the research, evaluation, testing, selection, procurement, implementation and maintenance of new software/hardware/systems.
• Provide basic first level telephone support to end-user community on hardware, software and network related problems, questions, and/or issues.
• Resolving software and hardware issues.
• Document customer and software configurations and develop and/or update standard operating procedures and training materials
• Configured and implemented network interfaces.
• Performed administration and monitored job processes using associated commands.
• Monitored client disk quotas and general disk space usage.
• Introduced new servers to the network. Maintained and provided troubleshooting for network connectivity issues.