SUMMARY:

• Hard working System Administrator currently seeking employment as a Linux System Administrator to expand my knowledge and use my current technical skills. Worked on Windows, Linux and Unix OS but most comfortable with Linux.
• 6+ years of IT experience in System Administration working on Red Hat Linux, Cent OS, and Windows environments
• Experience in Installation, Configuration, Maintenance of Linux and installing and configuring Red Hat Linux servers using kickstart and pxe boot.
• Performing regular day - to-day Systems Administration activities such as User Administrations, Disk Management, Package Install, Patch Management, Storage Management, Performance Monitoring; Log files Monitoring, Jobs Scheduling and NFS administration.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience in configuration of NFS. DNS, LDAP, HTTP, DHCP, ftp, remote access, security management and security troubleshooting skills.
• Experience on Web Servers such as Apache Server & Tomcat
• Experience in Installation and Creation of Oracle database.
• Team player with good management, analytical, communication and interpersonal skills.
• Creating Linux Virtual Machines using VMware Center.
• Experience in administering Vsphere 5.1, 5.5, 6.5.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.

TECHNICAL SKILLS:

Operating Systems: CentOS 6/7, RHEL 6/7

MSOFFICE/MS: PROJECT, Tomcat, Apache, Oracle, Bash, IPTables, wget, VMWare vSphere Client, VirtualBox, Spacewalk, satellite server, LDAP

Network Protocols: DNS, SSH, NFS, FTP, nslookup, TCP/IP, netstat, DHCP

DevOps: Ansible, Puppet, Chef, Git, Github, Jenkins, Docker

PROFESSIONAL EXPERIENCE

Linux Administrator

Confidential, Columbia, MD

Responsibilities:

• Analyze, log, and track complex software and hardware matters of significance pertaining to networking connectivity issues, printer, server, and application to meet business needs.
• Installation of hardware, software and upgrading to ensure work is performed as per the company policy on various hardware platforms.
• Recommend resolutions to complex matters and coordinate the implementation of the approved course of action.
• Installations, Configurations, Monitoring, Maintenance, Security using HIPS/HIDS, and troubleshooting of applications on Linux environment.
• Responsible for maintaining user accounts and basic service access permissions on infrastructure servers.
• Building of Virtual Machine (VM's).
• Responsible for monitoring and management of V-Center / VMware environment of virtual servers.
• Implementation and management of LAMP architecture
• Administer NFS and other applications on Linux environment.
• RPM and YUM package installations, patch and other server management
• Troubleshooting software and network problems.
• Responsible for supervision of backup and disaster recovery operations.
• Keeping track of maintenance of the servers in hardware & software.
• Building servers with jumpstart / kickstart, CD on timely basis, along with corporate wide requirements.
• Trained inexperienced users to use computers, copiers, phones and business applications.
• Created and deleted user accounts enforce security and compliance rules to regarding passwords and access to computer systems.
• Establish new user accounts for company employees, adhering to company's export compliance process.
• Creating and managing end user and e-mail accounts.
• Responsible for support of a large number of desktops, laptops, printers, and peripherals, along with a wide variety of software including word-processing, spreadsheet, database, emulation, and e-mail packages.
• Reduce stress levels of end users by adopting a cooperative attitude and positive approach to every task and assignment.
• Assists end users with software and hardware questions; investigates & resolves network issues including printing, installation, electronic mail, and general system problems.
• Maintain excellent client relations and service based on outstanding communication, technical efficiency and problem-solving skills.
• Provide network support, software development and related services in a Helpdesk setting.
• Answer helpdesk phone, document and assign issue to appropriate IT group.
• Diagnose and resolve hardware/software problems in win XP and win 2000 professional.
• Maintain clear documentation on all system configurations and changes such as memory upgrade, hard drive format, and new pc system setup.

Linux Administrator

Confidential, Baltimore, MD

• Experience administering, installing, configuring and maintaining Linux.
• Experience installing, upgrading and configuring RedHat Linux 6/7 using Kickstart Servers and Interactive Installation.
• Responsible for creating and managing user accounts, security, rights, disk space and process monitoring in CentOS and Redhat Linux.
• Configures DNS, NFS, FTP, remote access, and security management.
• Creates Linux Virtual Machines using VMware Virtual Center.
• Installs, upgrades and manages packages via RPM and YUM package management
• Installs Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Installed, configured and maintained multiple Red Hat Satellite Servers, and custom repositories.
• Installed and maintained Jenkins for Continuous Delivery as well as automate Ansible Playbook runs against production infrastructure.
• Deployed Puppet for automated management of machine configurations.
• Installed Spacewalk repository to sync external repos and add custom.
• Installs, configures and supports Apache on Linux production servers.
• Manages Patches configuration, version control, service pack and reviews connectivity issues regarding security problem.
• Implemented Bash, Perl, Python scripting to automate day to day tasks.
• Manages systems routine backup, scheduling jobs and enabling cron jobs.
• Works with Database administrators to tune kernel for Oracle installations.

Linux Administrator

Confidential, MD

• Proactively monitor production database tablespaces, instance, alert logs etc by utilizing CRON job and Linux bash script
• Performed backup and restore functions for Oracle 11g and 12c databases using RMAN and Data Pump as needed
• Responsible for documenting accurate and detail documentation on all database issues and procedures
• Responsible for applying quarterly CPUs/PSUs utilizing Opatch
• Periodically monitor backups for corruption
• In depth understanding of tablespaces
• Configured, troubleshot, and maintained Windows 2003 and 2008 Servers
• Experience in creating, cloning and deleting virtual machines in VMware
• Extend and reduce disk space using logical volume manager
• Installed upgraded packages patches on Redhat 6 and 7 servers using Yum and Rpm
• Opened and closed udp/tcp ports on server using iptables

Linux Administrator

Confidential, Rockville, MD

• Installed RedHat Linux using kickstart.
• Created, cloned Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.
• Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
• Performed RPM and YUM package installations, patch and another server management.
• Installed and configured Logical Volume Manager - LVM and RAID.
• Provided 24/7 technical support to Production and development environments.
• Administrated DHCP, DNS, and NFS services in Linux.
• Created and maintained user’s accounts, profiles, security, rights disk space and process monitoring.
• Configuration management using Puppet, Ansible, and Chef
• Provided technical support by troubleshooting Day - to-Day issues with various Servers on different platforms.

Help Desk

Confidential - Erie, PA

• Managed call center activities to meet service level agreements.
• Performed PC support and maintenance for over 200 people.
• Installed and upgraded video cards, modems, hard drives, IDE controllers, SCSI drives, power supplier and memory components.
• Performed system configuration and troubleshooting.
• Created and managed user accounts and security.