OBJECTIVE

• Dedicated and Motivated Linux system Administrator with 5 years of experience working with Linux Servers Installation, Configuration, Monitoring and Troubleshooting.
• Experience with user administration, managing users, groups and granting privileges and permissions.
• Strong administration and troubleshooting skills on Linux and well organized with strong problem solving and good communication skills as well as the ability to work in a team and independently.

TECHNICAL SKILLS

Operating Systems: CentOS/RHEL 6/7

Services: Apahce 2.x, NFS, LDAP, FTP

Languages: Bash

Software/Applications/Tools: VMware, AD, Jenkins, Solarwinds, J2EE, Tomcat 6/7

Hardware: HP Prolian, Blade servers

PROFESSIONAL EXPERIENCE

Confidential

Linux Administrator

Responsibilities:

• Responsible for daily system administration tasks in heterogeneous Linux/Unix environments such as building server, applying patches, disk management, job scheduling, User/group management and packages installation (using RPM and YUM) on Linux/Unix Environment.
• Responsible for patching server to resolve security vulnerabilities.
• Experience in VMware Infrastructure 4.x, 5.x, 6.x Installation, Configuration and support.
• Experience in creating physical volume, logical volume, volume groups using LVM s in Linux.
• Experience in LVM and SAN/NAS storage.
• Configuration of NIS, NFS, SAMBA, SENDMAIL, TTP, DHCP, FTP, remote access management on Linux & UNIX Environment.
• Registered Linux servers with internal Satellite Server for package management, synced Satellite server s channels with RHN s Central Server to update its database metadata and RPM packages.
• Installing, troubleshooting, maintaining, upgrading and patching Apache,Drupal, PHP and mySQL; preferably in a multi - server 24x7 supported environment.
• Experience IN Drupal 7&8, PHP development, API, web service, and integration experience
• Responsible for Production support in a 24x7 server environment with pager rotations. .
• Deployment of automation using Chef.
• Configuration management tool experience with Chef.
• Written Chef Recipes to manage deployments and automation of infrastructure.
• Experienced in implementing and maintaining an Apache Tomcat, Apache HTTP, Nginx web service environment.
• Experience in supporting and configuring LINUX servers running Hadoop.
• Working knowledge of Hadoop Administration including but not limited to build, administration and configuration of Master Node, Name node, Storm Node, Edge Node, Kafka Node and JBOD disks.
• Good Understanding of Hadoop Cluster performance by considering the OS kernel, Storage, Hadoop HDFS and MapReduce using appropriate configuration parameters.
• Secured Linux file access by modifying the file and directory permissions, modified file ownership, restrict a file based on a set of specified restrictions using UGO permission scheme, grant or block file access using ACLs.
• Advanced knowledge and skills in Linux Operating System, High Availability/Clustering, System Backup/Restore, Kickstart and Logical Volume Manager software products.
• Participated in Disaster Recovery tests and documented procedures for Technical Continuity.

Confidential

Linux Administrator

Responsibilities:

• Configured Swap volumes for automatic mounting to survive a Power cycle at system reboots
• Used cron to schedule jobs and automatic system administration duties like file system clean ups
• Implemented a LAMP Stack to support and Web Applications for clients
• Installed and configured Apache Webserver, setup HTTP based Installation server for Kick start
• Configured web services to enable access to document roots and protect other directories
• Performed Network Security Administration on Windows and Linux network systems
• Performed installation of Red hat Linux servers on the Virtual Machines
• Configured network interfaces on VM with Hostname, IP and Gateway records
• Modified server configuration files to establish default run levels based on system requirements
• Configured and deployed various Linux Distributions such as Red hat, Centos, Ubuntu, Fedora
• Managed File Systems and Users on Red Hat Enterprise Linux 6 platform
• Created and configured multiple Virtual Machines on a bare metal Red hat installation platform
• Enforced System Security, managed system hardening on LINUX environments.
• Knowledge of Government Security Standards - NIST and FISMA Security Frameworks
• Detailed Troubleshooting and Password recovery for Red Hat Linux and CentOS Servers
• User Accounts and Access Control implementation in Red Hat Enterprise Linux Servers
• Created and activated Swap volumes to enhance system performance
• Coordinated all Information Technology needs of the organization.
• Fixed software and hardware issues on Linux and windows systems
• Performed software and hardware driver updates
• Performed Secured Remote Login with SSH for system maintenance
• Performed network troubleshooting, installation, configuration
• Provided monitoring for network devices such as routers, switches and firewalls

Confidential

Operations Analyst

Responsibilities:

• Performed user account management. Troubleshoot and fixed all local and LDAP user authentication issues.
• Scheduled jobs using crontab to run repetitively.
• Maintained necessary back - up of the important files and documented Linux scripts for future reference.
• Attended calls related to customer complaints and offered solutions.
• Used Linux LVM to manage storage and performed file system security on Red Hat Linux servers.
• Performed host security on servers and troubleshoot hardware issues on servers
• Installed OS patches on RHEL 6 & 7 servers, and monitored server performance using Nagois.
• Created user accounts, assigned users to group and created group account for the developers
• Liaised with Red Hat Support on hardware issues where necessary
• Created Linux Virtual Machines on VMware Virtual Center.
• Participated in on-call rotation and work to resolve critical issues 24/7.