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Server Administrator Resume

Scottsdale, AZ

SUMMARY:

  • 8 years of experience in server administration with Linux (Red hat 5/6/7, Centos 5/6/7) & Windows servers (2008/2012/2016 ).
  • 3 years of experience with Vmware vSphere vCenter 6.5.
  • Experience with Netscaler load balancer to maintain nodes & services.
  • Creating templates from VM’s and deploy VM’s from templates and allocate resources.
  • Using vSphere vCenter for creating new VMs, provisioning with resource management.
  • Experience in Package management using RPM and YUM in Linux hosts.
  • Performing Kernel upgrade for Linux servers.
  • Configuring Linux Servers and used it for Cloning, software distribution and OS updates.
  • Experience in Logical Volume Manager (LVM) for creation of Volume groups / Logical Volumes and File systems for Linux servers.
  • Management of User accounts, ACL, kernel performance monitoring and tuning for Linux servers.
  • Installation and configuration of Apache, Tomcat on Linux.
  • Responsible for OS HARDENING .
  • Setup and administration of VERITAS Volume Manager Clusters.
  • Experience to shell scripting for automating jobs day to day activities.
  • Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
  • Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
  • Working experience on Active Directory and LDAP on windows.
  • Installation, Configuration of DNS and DHCP Servers.
  • Install, configure, and troubleshooting IIS 6.X/7.x/10.X on Windows Servers.
  • Building and configuring web sites through application pools in IIS 6.0/7.0/10.0 .
  • Installing and configured SSL Certificates.
  • Automating jobs through task scheduler in windows servers.
  • Deploying Antivirus Patches using Group policy on windows.
  • Experience with power shell for scripting.
  • Working on datastores in vCenter to manage Hitachi storage.
  • Performing changes to hosts and datastores for VMs in vSphere vCenter as needed.
  • Adding new Hard disks, new NICs and other resource management for VMs through vSphere.
  • Creating and managing Resource Pools and adding the VM’s into Resource pools.
  • Capable of quickly troubleshoot complex problems, understanding dependencies and deducing the root issue.
  • Proficient in using command line tools to quickly triage and fix production issues then conduct root cause analysis.
  • Working on PRTG tool to set up new devices, new sensors & upgrading PRTG to higher version.
  • Troubleshooting network, application, and server related issues.
  • Experience with monitoring tools Nagios, Zabbix, BMC patrol, PRTG, SCOM etc.
  • Experience with incidents tools like Service now, BMC remedy, JIRA.
  • Working with CAB (Change advisory board) for necessary server changes.

PROFESSIONAL EXPERIENCE:

Confidential, Scottsdale, AZ

Server Administrator

Responsibilities:

  • Working as a server administrator with Linux administration in Red hat & Centos.
  • Experience with Windows Server (2008/2012/2016 ) administration.
  • Installation, Configuration and Administration of Red hat 5/6/7, Centos 5/6/7 & Windows 2008/2012/2016.
  • Experience in Logical Volume Manager (LVM) for creation of Volume groups / Logical Volumes and File systems for Linux servers.
  • Install, update and upgrade the packages using with rpm and yum tools.
  • Management of User accounts, ACL, kernel performance monitoring and tuning for Linux servers.
  • Installation and configuration of Apache, Tomcat.
  • Install, configure, and troubleshooting IIS 6.X/7.x/10.X on Windows Servers.
  • Using Patch Manager tool for patches/packages installation, upgrade & remove on windows servers.
  • Building and configuring web sites through application pools in IIS 6.0/7.0/10.0 .
  • Installing and configured SSL Certificates.
  • Deploying Antivirus Patches using Group policy on windows.
  • Using vSphere vCenter for creating new VMs, provisioning with resource management across VMs.
  • Working on datastores in vCenter to manage Hitachi storage.
  • Performing changes to hosts and datastores for VMs in vSphere vCenter as needed.
  • Configuration of Remote Access utilities, providing user access control on services like telnet, ftp and ssh.
  • Monitoring the Servers performance using with performance monitoring tools like top and ps etc.
  • Having experience on automation concepts like shell scripting and capable of preparing scripts.
  • Installation and configuration of NFS and FTP.
  • Setup and configured network TCP/IP at all levels on Linux servers.
  • Installation and configurations of DHCP and DNS Servers.
  • Installation and configurations of Apache Web Server & Tomcat Server on Linux servers.
  • Having experience in Hardware maintenance, replacement of the server, Upgrade of Kernel & OS, Server migration and Virtualization.
  • Experience on ITIL such as Incident Management, Problem Management and Change Management.

Confidential, Denver, CO

System Administrator

Responsibilities:

  • Installation, Configuration and administration Linux, Red Hat, Centos.
  • Experience with Windows Server (2008/2012/2016 ) administration.
  • Actively involved in building and configuring of Linux servers remotely using Kick Start method.
  • Extensive experience in Linux disk management and Linux file systems in LVM.
  • Performed on windows patching with installation, upgrade & remove.
  • Configuring new application pool in IIS 6.0/7.0/10.0 .
  • Working on active directory on windows servers.
  • Configuration and Administration of DNS, NIS, NIS+, DHCP, FTP, Samba Servers. Security layers like SSL, SSH, HTTPS, SFTP.
  • Support for Linux/Unix system administration, operational support and problem resolution for server systems.
  • Creating NFS server, mounting and un - mounting NFS server, sharing the file system over a network using NFS.
  • Updating/patching Linux, Linux Virtual Machines in VMware clusters and perform OS upgrades and patch Installations
  • User management, security planning and implementation.
  • Setup and configured network TCP/IP at all levels on LINUX servers.
  • Experienced in monitoring and debug performance issues on different OS Linux (RHEL & Centos).
  • Participated in installing and configuring of UNIX/Linux based Oracle 10g products.
  • Kernel parameter tuning and Performance Monitoring using tools like Glance plus, vmstat, mqstat and addressing swap issues in Red hat Linux servers.
  • Monitoring and managing performance of ESX servers and Virtual Machines.
  • Responsible for OS HARDENING
  • Related to web applications, Send mail, disk space, file system, DNS and network connectivity.
  • Provide support for JBoss 5.x and apache for an operation related to installation and configuration.
  • Worked with REMEDY ticketing tool.

Confidential

System Engineer

Responsibilities:

  • Responsible for Linux OS Installation & administration.
  • Responsible for Deployment, Maintenance, Patching Linux Servers, and AIX servers
  • Performed Building up of servers, deployment activities, and environment support including installation, configuration diagnostics, planning and upgrades.
  • Implemented day-to-day tasks in RHEL and Centos that includes upgrading kernel, configuring, multi-pathing, NAS Mount and Unmounts.
  • Responsible for design and implementation of IT infrastructure such as data center, servers, storage, backup, and virtualization.
  • Experience in installing agents like Autosys , Oracle client on Linux and AIX servers.
  • Release/Change Management: interface through the staging phase, during and after full implementation of system software up-gradation including database and website applications. Even included software releases towards system overhauls, and as well involving capacity planning.
  • Service Continuity Management: providing planning for preventive maintenance issues, short-term power failures, single node or component failures and other forms of outages.
  • Handling technical and business operations for Israel, United Kingdom, Germany, France, Australia and Ireland.
  • Taking individual responsibility for resolving issues reported to the NOC from multiple sources including trouble tickets, phone calls and automated alerts
  • Setup of full networking services and protocols on UNIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, FTP, TCP/IP, ARP, Applications and print servers to insure optimal networking and printing functionality.
  • Systems log management, Data backup and restoration with UNIX native tools (tar/dd).
  • Installing Red Hat Linux using kick start and applying security polices for hardening the server based on the company policies
  • Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
  • Administration responsibilities included user, group, disk, printer, security management, incident troubleshooting, file system maintenance, backup scripting and automation, file sharing permissions, software maintenance, file sets, program fixes and keeping the system software releases up-to-date.
  • Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostatetc) and tuned I/O, memory, etc.
  • Worked on day to day administration tasks and resolved tickets using JIRA, Remedy.
  • Installation of patches, Security fixes, packages on AIX, Linux and Sun Solaris Servers
  • Administered Linux servers for several functions including managing Web Sphere, Apace/Tomcat server, mail server, MySQL database, SVN, build and firewalls in both development and production.
  • Developed Cron jobs and Shell Scripts (Shell, Python) for automating administration tasks like file system management, process management, backup and restore.
  • Repaired bad spots on the disk using repair and analyze. Used format and fdisk/Parted for disk configuration and disk crash recovery.

Confidential

Server Administrator

Responsibilities:

  • Experience Linux System Administrator to red hat & Centos flavors.
  • Support in systems management and administration of LINUX/UNIX in global-scale environment.
  • Performing System Storage management/LVM tasks like creating volume groups, PV’s, LV’s and jfs/jfs2 File systems, mirroring VG’s, LV’s and mounting File systems.
  • Managing the user environment by adding, modifying and removing user accounts from the environment and limiting access to appropriate nodes.
  • Day to day duties for Linux server maintenance and support to developer's team for their issues with application, tuning, troubleshooting, software running on Linux Servers.
  • Involved in 24x7 supports for both production and development databases with on-call.
  • Support of multi flavor LINUX environment with various responsibilities.
  • Setup and configured network TCP/IP at all levels on Linux servers.
  • Involved in the installation, monitoring and support of LINUX based servers, firewalls, Internet technologies and remote office WAN/ LAN connectivity.
  • Worked with DBA team for database performance issues, network related issues and with vendors for hardware related issues.
  • Administered user accounts, performed user maintenance on LINUX and PC workstations. Monitored security issues. Administered system mail and internet access. Configured network file systems.
  • Ability to troubleshoot the issues based on System/security/application
  • Used Remedy Tool in Production environment which strictly complied with Problem/Change Management policies of the organization.
  • Developed shell scripts for automating routine day-to-day tasks, management reports, set up alerts for server resources utilization (CPU, memory, disks, etc.).
  • Provide rotational on-call Tier III support responsibilities. Production Support: Provided 24x7 supports for various divisions within the Company and resolve all production issues in a high pressure and time sensitive environment.

Confidential

Associate System Engineer

Responsibilities:

  • Worked on UNIX/LINUX/Windows servers.
  • Managing the disk space issues on the UNIX & Windows servers.
  • Worked on memory, swap memory, CPU utilization fixes.
  • Performed health checks to the servers for various regions (EMEA, JAPA, US).
  • Worked on JVM hung thread issues.
  • Worked on Single-Sign On application for maintaining the banking application high availability.
  • Monitoring the servers included redhat, HP-UNIX, AIX & Windows.
  • Finding the trend analysis/ Root cause analysis for server related production issues
  • Having experience in working with tools like BMC patrol, Tivoli tools, CA wily introscope & CVA (for networking).
  • Followed ITIL methodology for handling the incidents.
  • Working for CMR & E-CMR as per requirements of the high level architect team.

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