SUMMARY

• Over 9.0 years of professional experience as a System Administrator with experience in operating systems that include Solaris, Redhat, SUSE and HP - UX.
• Extensive experience in installation, configuration, maintenance, design, Administration, implementation, and support on Solaris, Linux, centos,and HP-UX Environment.
• Extensive experience in Kickstart/Jumpstart.
• Experience in installation, configuring, troubleshooting NetApp Storage filers, ONTAP.
• Experience in implementing and managing virtualization using VMware ESX 3.5 / vSphere 4.0.
• Experience in the implementation of High Availability using Veritas Cluster Server 4.1 and 5.1
• Experience in implementing and configuring of high availability and redundancy and RAID using Logical Volume Manager, Sun Volume Manager, Veritas Volume Manager 3.x, 4.x, 5.
• Experience working with DNS/DHCP/LDAP/NFS/NIS/NIS+ services.
• Installation, configuration and management of SAMP (Solaris/Apache/MySql/PHP) and LAMP (LINUX/Apache/MySql/PHP ) stacks.
• Installation and configuration of Solaris Zones and ability to work with ZFS/SMF/POOLS.
• Implementation of backup solutions using Veritas NetBackup 4.5, 5 and 6.5 and HP Data Protector.
• Experience in Shell scripting using sh, ksh, bash and PERL
• Experience in Performance Monitoring of CPU, Memory, Disks, Network.
• Experience in storage technologies like Net Backup, Hitachi, EMC storage, NetApp, SAN.

TECHNICAL SKILLS

Hardware Platform: Sun Fire V240/T200/280R/4100/4540, HP DL 360 Gen6, SUN SPARC Enterprise M9000/M5000/M4000, Dell

Operating System: Linux( RHEL, CENTOS), SOLARIS, AIX

Version Tools: GIT,SVN

Storage: NETAPP

Scripting: UNIX Shell Scripting, Perl

Virtualization: VMware

Databases: MySQL, Postgress

Cloud: Azure,GCE & Basic OpenStack.

Software: Puppet, Apache, Nagios,Cacti,Collectd,DNS/BIND

Monitoring Tools: Nagios, Splunk.Cacti

PROFESSIONAL EXPERIENCE

Confidential

Sr. Unix/LINUX Systems Adminisitrator

Responsibilities:

• Installing Centos on Physical and Virtual machines.
• Coordinating with application teams and testing the application code on installed VM’s
• Taking the requirements from Engineering teams and building servers for new projects.
• Working with networking team to keep the IP pools ready for deployment of VM’s
• Maintaining DNS and adding DNS entries and zone files.
• Building Golden images for application testing.
• Customizing the Golden images for performance and monitoring.
• Converting Golden images to templates and deploying VM’s from templates
• Adding VLANS & Customization of profiles to VMware Vcenter for deploying VM’s
• Building new modules in Puppet and maintaining the existing ones.
• Deployed Puppet,Puppet Dashboard and Puppet DB for configuration management on existing infrastructure.
• Planned for, tested and later migrated puppet infrastructure from puppet enterprise 3.1.3 to 3.2
• Deploying VM’s in Microsoft Azure
• Using HAproxy for load balancing .
• Deploying Mobile application code in all production servers using Python scripts
• Building basic scripts for automating code deployment
• Maintaining Production environment & Participating in 24/7 Oncall Duties Monthly
• Kick starting ESX hosts
• Working with vendors on hardware replacement and bring them back online.
• Built VMware environment on Confidential UCS MB200 Model.
• Built puppet infrastructure in Cloud .
• Scaling the Infrastructure in Azure and Google Cloud Environment
• Maintaining and adding users to infrastructure using puppet.
• Creating Volumes in NETAPP for application logs storage
• Increasing the existing Volumes in NETAPP.
• Replace and re-configure the failed disks in NETAPP.
• Deploying VM’s in Google Cloud
• Troubleshooting VMware infrastructure for disk space issues.
• Deployed VMware VRealize Operations Manager 6.0 for reporting
• Assisting the PM in preparing Capacity Reports for Capacity Planning and Budgeting for Infrastructure
• Troubleshooting day to day incident tickets for alerts generated from Nagios.
• Code deployments using python FAB scripts in multi node cluster environments.
• Managing infrastructure in Cloud environment and deploying code using third party tools and python FAB scripts

Confidential

Sr. LINUX Adminsitrator

Responsibilities:

• Performed patch and package management on RedHat Linux servers using RPM’s & YUM.
• Maintained and managed network file system
• Installed, upgraded and patched Red Hat Linux.
• Diagnosed and resolved problems associated with File systems & network
• Installing machines using Jumpstart’s.
• Experience in the support of fundamental technologies such as DNS, SFTP and FTP,DHCP etc.
• Installing and upgrading patches
• Migration of servers from CNC (Cent-OS) to CSPC boxes based on UCS platform
• Assisting the NCE’s in managin the customer N/W devices
• Assisting NCE’s in pulling up reports from NP(Network Profiler)
• Troubleshooting N/W devices that are not reporting in NP
• Managing unix account maintainance including addition, changes and removals
• Install upgrade ad query packages on the system
• Performing installation using kickstart and Jumpstarts
• Monitoring server performance using Nagios and Cacti
• Working on daily requests from NCE’s in adding n/w devices to CNC and CSPC boxes
• Experience in the configuration of the of the mail servers like Sendmail and Postfix.
• Managed UNIX/Linux servers providing DNS, Apache/PHP, Samba, LDAP, DHCP, proxy at our Santa Clara & Mountain View Data Center.
• Deployed Confidential UCS Series/ HP DL series / Dell Hardware.
• Used automated installation of Kickstart for RHEL 5.x and Jumpstart for Solaris 10.
• Implementation and configuration of SFTP server for (500+) customers.
• Installed configured ORACLE RAC on RHEL 5.x Servers.
• Installation and configuration of ORACLE 11g R2.
• Report generation using Perl Scripts and Proficient in one liner Perl scripts.
• Extensively worked on VERITAS Volume Manager, VERITAS Netbackup and VERITAS Cluster Server.
• Backup and restore data using Veritas Netbackup.
• Install and setup HBAs for Fiber Channel connections into SAN.
• Hands on SAN Zoning.
• Installation, configuration and management of SAMP {Solaris/Apache/MySQL/PHP} and LAMP {LINUX/Apache/MySQL/PHP } stacks.
• Mediawiki 1.21 - Installation, configuration and data deployment.
• Implement change and resolved ticket using BMC Remedy.

Confidential

UNIX/LINUX Adminsitrator.

Responsibilities:

• Installed/configured/maintained Solaris & Linux servers.
• Performed patch and package management on RedHat Linux servers using RPM’s & YUM.
• Maintained and managed network file system
• Installed, upgraded and patched Red Hat Linux.
• Diagnosed and resolved problems associated with File systems & network
• Installing machines using Jumpstart’s.
• Experience in the support of fundamental technologies such as DNS, SFTP and FTP,DHCP etc.
• Handled configuration, Installation and maintainance of Apache.
• Driving service related activities through standard processes (i.e. change management, incident management)
• Administer complex Unix-based systems in a multi-tiered architecture, generally from the operating system, monitoring or application level and up.
• Working on daily incidents created by operations team.
• Implemented and supported an automated systems and patch management solution for UNIX servers utilizing SSH keys and scripts.
• Experienced in the installation, patching and upgrading of Oracle and Oracle Applications on Unix and
• Understanding the file access permissions. Install, upgrade, delete and query packages on system.
• Adhere to SLA response and resolution times and ensure cases are regularly updated.
• Knowledge on Server proactive monitoring tools i.e.SCOM, Big-brother, Nagios etc.
• Migrating services from remote data center to in-house data center.
• Routing traffic to failover DC’s related to Microsoft apps (Speech & skype)
• Installation, configuration and management of SAMP {Solaris/Apache/MySQL/PHP} and LAMP {LINUX/Apache/MySQL/PHP } stacks.
• Hands on installing, configuring and maintaining on Oracle10g /Oracle10g RAC and Oracle 11g DB’s

Confidential

Sr. Solaris/Linux system administrator

Responsibilities:

• Installed/configured/maintained Solaris, Redhat & SUSE Linux servers.
• Dealt with configuration of Sun SPARC / HP DL series / Dell Hardware.
• Installation, Configuration and Administration of Solaris and Linux OS.
• Responsible for maintaining the integrity and security of the enterpriseUNIX(Linux /Solaris ) servers and systems.
• Maintains a disaster recovery plan.
• Installation / Configuration and Maintenance of Backup software’s like HP Data protector and Veritas Netbackup.
• Configure and maintain DNS, NFS, NIS, DHCP, printing, mail, web, and FTP and other Network services.
• ManageUNIXaccount maintenance including additions, changes, and removals.
• Recommends and implements security policies and standards and ensures adherence to procedures.
• Recommends systems and programming standards and procedures including writing Perl scripts or programs to automate and/or simplify theUNIXadministration procedures.
• Works with the application teams and other IT department personnel to coordinate system software changes and support application changes.
• Configure and maintain the 'sudo' utility.
• Configure, maintain and manage samba shares. (Unix-to-Windows interoperability and configurations.)
• Name Service design, best-practices, configuration & maintenance (NIS, LDAP, DNS).
• Image machines using Jumpstart/Kickstart to installSolaris10 and Red Hat Enterprise.
• Installation, configuration and management of SAMP {Solaris/Apache/MySQL/PHP} and LAMP {LINUX/Apache/MySQL/PHP } stacks.
• Storage allocation. Distribute projects/tools/home accounts across filers/volumes on site without over-allocating disk space.
• Handling Storage and Storage related upgrades by coordinating with vendors on EMC Clarion and Symmetric including the installation and configuration of PowerPath.
• Work individually or on a team on various system projects related to Application Support.
• Debug and correct installed system software as required.
• Plan, prepare and apply maintenance fixes to system software as required.
• Tune system software for peak performance and availability.
• Installation configuration and management of Veritas Netbackup VXVM, VCS, ZFS, LAMP, LVM, Virtualization (Xen,SolarisZones/Containers, LDOMS, Oracle VM).
• Working knowledge on Sun Directory (ldap),SolarisVolume Manager, Jumpstart/Wanboot, Kickstart, iscdhcp, Sendmail, Apache, NIS, NFS, Subversion/CVS, Compiling and Package creation.
• Assist application owner in application troubleshooting, software package installation & creation.

Confidential

Sr. Solaris / Linux Administrator

Responsibilities:

• Providing onsite support for 800+ Solaris/HP-UX/AIX/Linux servers.
• Installed/configured/maintained Solaris/HP-UX/AIX/Linux servers.
• Worked with Trouble Tickets and Change Controls.
• Handling Storage and Storage related upgrades by coordinating with vendors on EMC Clarrion and Symmetrix including the installation and configuration of PowerPath.
• Performed patch and package management on RedHat Linux servers using RPM’s & YUM.
• Disk management using LVM and SVM.
• Managed SNMP and System level monitoring systems.
• Writing Perl scripts for automating the installation / deployment process.
• Providing onsite support on nights/week-ends during critical Data Centre outages.
• Performing Periodic HBA (LPFC, QLC) firmware and driver upgrades.
• Implementation of solaris on X86 / X64 based Architecture.
• Installed/configured webservers Apache / Tomcat servers.
• Installed/Configured/Maintained Veritas Clsuters(2node and 3 node).
• Dealt with the configuration, Installation and maintenance of Apache.
• Created and maintained Domains on Sun fire mid range servers like Sun fire 4900/6800/ 6900.
• Was part of the teams handling system performance, capacity planning and SLA compliance.
• Hands on EMC SAN storage arrays and NetAPP Network Appliances.
• Handling users, groups, and role administration.
• Hand on Linux Kernel customization and Network subsystem tuning and optimization.
• Administration of Weblogic. configuration and administration of external storage (SAN/NAS)
• Installation, configuration of new Solaris with build standards.
• Worked with Data Center Power Shutdown Events.
• Implemented Name Services - NIS, DNS, LDAP, NFS, Auto mounter, DHCP, Samba, Sendmail.
• Configuration and management of Apache, Web Logic, Tomcat.
• Strong hands on experience with X86 HARDWARE - Intel Rack mount servers Sun Netra X4270 Server, Sun Fire x4600, and Sun Fire x4275.
• Server monitoring, trouble shooting and critical outage support.
• Linux server’s administration support on both production and development environment.
• Well Versed with Storage Management Technologies (VERITAS NETBACKUP / EMC).
• Providing onsite support on nights/week-ends during critical Data Centre outages.
• Experience with low latency technologies such as 10Gb Ethernet, Infiniband and Kernel.
• Installation, configuration of new Solaris with build standards.
• Worked with Data Center Power Shutdown Events.
• Installed Solaris and Linux installations using Kickstart and Jumpstart.

Confidential

Unix / Linux Administrator

Responsibilities:

• Managing Unix Infrastructure, involving maintenance of the servers and troubleshooting problems in the environment.
• Planning and implementing the configuration changes to the servers adhering with ITIL change management process.
• Installation, configuration of new Solaris 10, Red-Hat AS4 (Jump start /Kick start Installations) for different projects.
• Writing Shell/Perl Scripts for managing day-to-day transactions & for automation of routine tasks.
• Used VERITAS Cluster Server to eliminate both planned and unplanned downtime.
• Performing Sun baseline patching and kernel upgrades.
• Served as subject matter expert for different business accounts running UNIX AIX or HP-UX operating systems.
• Adding packages & patches for Solaris and Red-Hat servers based on the requirements.
• Worked efficiently using VERITAS Net Backup 5.0 on development and production servers for backups and restores.
• Worked with Virtualization Technologies: VMware & XEN.
• Monitored and checked alerts in Nagios monitoring software.
• Worked on EMC DMX3000, Symm8830 Disk libraries, Clariion CX 700 SAN.
• Working with VERITAS Volume Manager for creating volumes and file systems for various applications and oracle databases.
• Troubleshooting various problems related to VERITAS Volume Manager (VxVM) in initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Monitoring the System activity, Performance, Resource utilization.
• Daily Linux troubleshooting related to issues with LDAP, Apache, DNS and q-mail platform.
• Supported Unix/Linux servers running Oracle and My SQL databases.
• As part of System Engineering, I am responsible for maintenance Raid-Groups, LUN Assignments as per agreed design documents.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Configured and administered Apache Web and VSFTPD services.
• Build and configuration of new servers for different application development projects.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Configuration of DHCP, DNS, NFS and automounter.
• Creating, troubleshooting and mounting NFS File systems on different OS platforms.
• Configuration/troubleshooting of multi-paths on Solaris and bonding on Linux Servers.
• Setting up NFS and Samba servers for file sharing.