SUMMARY

• More than 9 years of industry experience in Unix engineering and leading Unix/windows infrastructure team of System Administrators on Solaris, Linux, SUSE Linux, AIX and Vmware.
• Extensive hands on Implementation, Administration and Troubleshooting experience on Sun Solaris, Linux, UNIX and SAN environments.
• Extensive experience installing, configuring, maintaining and supporting Sun Solaris, RedHat Linux OS on Productions environments.
• Troubleshooting and maintenance experience on IBM AIX hardware components including RS/6000 and pSeries.
• Proficient in Disk Management, Logical Volume Management (LVM) on P5 and P - series systems including P570, P590, P520 and 650, 670, 690.
• Extensively experienced with various methods of Solaris Systems Installation and Migration using Network Installation Manager (NIM).
• Experience working with Solaris Flash used to archive data and migrate to another system.
• Jumpstart, ZFS, zpool, LDOM and zones proficient.
• Proficient in Backup utilities used for Restoring, Cloning and Mirroring.
• Experienced in studying the kernel performance issues using various utilities like Topas, vmstat, svmon.
• Proficient with configuring and maintaining NFS, DNS, NIS/NIS+, DHCP, SMTP, and Networking with TCP/IP.
• Managing storage on EMC clarion and DMX.
• Managing Solaris 10 ZFS ZPOOLs.
• Building Ldoms on solaris 10.
• Experienced in creating CRON jobs to automate various System Administration tasks using the crontab utility.
• Experience with SMIT, LVM (Logical Volume Manager), Mirroring, User & System Resource Management, Paging Space Management and Job Scheduling.

PROFESSIONAL EXPERIENCE

Confidential

Senior System Administrator

Responsibilities:

• Installation, configuration, patch management, troubleshooting OS, hardware, and network related problems, firmware upgrades, software upgrades, user management, monitoring, performance tuning) to production support, performance tuning applications, solutions architecture, engineering and design of Unix infrastructure.
• VMware Infrastructure planning and design. Creating/building the CentOS and Redhat Linux VM’s from VMware ESX 3.5/4/ vSphere 4.0.
• Experience in Installing VMware VSphere 5.1,5.5 and created virtual machines on ESX 5.1, 5.5Servers. Created standard images and deployed servers from the images.
• Worked on Central Management Server (VCenter Server) to manage all the ESX hosts in the datacenter.
• Creating and managing Virtual Machines and Templates. Working with snapshots of Virtual Machines.
• Worked on installing, configuring, and upgrading support for vRealize Automation &vRealize Orchestrator and Automation tools.
• Setting and Configuration of Proxy Server.
• Installing and configuring Solaris10 Control/Guest logical domains (LDOM’s) on T-series (T 2000/5220/5240, T3, T3-2, T4-1-2’s and T5) oracle/sun hardware, server Virtualization also using Linux VM’s and Solaris Global and Local zones/Containers.
• Installing, upgrading and configuring Ubuntu, SUN Solaris 8, 9, 10 and 11 on Sun Servers Using Live upgrade, Jumpstart and Interactive Installation.
• Using Kick-start installation in Red Hat 5.X/6.X Linux servers (DL580, DL380 G5, 6/7/8 series).
• Supporting enterprise based distributed applications over a wide range of operating environments across several web farms on a 24/7 rotation basis for high volume, secure transactions and Web services.
• Designing/planning/Data center migration, SAN/NAS storage migration, server Migration.
• Patching the CentOS, Solaris9& 10 and Red hat 5.6/6.x Linux servers.
• Using and setting up the Oracle EXADATA database X4 machines.
• Backup utilities, installing & configuring EMC Avamar, VERITAS Net backup client 6.5.5/7.0.1 (NBU), Networker, and Enterprise media backup (TAN) also Data Domain configuration.
• Configuration of Networking Concepts DNS, NIS, NIS+, NFS and DHCP, troubleshooting network problems such as TCP/IP, providing support for Linux Security tools like IPTABLES, WinShark, firewalls. users in solving their problems.
• Using Site Scope, HP Open View, Nagios and Tripwire, IP monitor, Big brother, AutoSys, Maestro and Team quest monitoring tools.
• Process of requesting DCFM (Data center facilities request) for server installation (rack and IP’s cabling) request in Data centers.
• Procurement in order, getting quote and order the server hardware/parts & software’s directly with the preferable vendors.
• Worked on Linux Demilitarized Zone and Ethernet Interface Card for DMZ implementation on Linux an Ubuntu.
• Installing, configuring and maintaining Weblogic 10.3.5/Apache/Tomcat, VNC, SAMBA & SMTP Send Mail, Sudo, Web Sphere Application Servers.
• File system administration using Logical Volume Manager (LVM), software RAID (0/1/5) solutions using Solaris volume manager (SVM), VERITAS Volume Manager (3.5, 4.0, 4. 1, and 5.0), VERITAS File System (4.1, 5.0).
• Working with Storage disk array/enterprise storage systems such as EMC Symmetrix, VMax Storage Arrays and Clarion Storage Arrays.
• Planning, documenting and supporting high availability, data replication, business persistence, Fail-Over, Fail-Back using VERITAS Cluster Server 3.x/4.x, Sun Cluster Server in SAN environment.
• Resolving system errors and crashes, huge file sizes, file system full errors and Installing network Printers and rectifying the Printer problems over the network.
• Analysing, designing, implementing and system integration, Knowledge on Switches, PVLAN, Routers, Firewalls ports and Partner Net port open requests.

Confidential

Sr. Unix Engineer/Administrator

Responsibilities:

• Leading a Linux, Ubuntu and Solaris Build and migration team
• Creating and managing zpools on Solaris 10,11 LDOM and Zones. And RHEL on VMWare ESX
• Shell scripting - writing scripts in bash to automate several repetitive tasks such as finding user information from across 2400 servers for security audits on a daily basis, post server build checklists, etc
• Installing, configuring and managing Solaris 9, 10 and 11 on Sun Enterprise systems, Administered, maintained Red Hat Linux Release 4, 5 and 6, Suse Linux, 9-11 HP-UX and AIX
• Providing engineering inputs on design and standards issues including analysis, development, implementation, as well as and mentoring of technologies across the teams
• Evaluating, testing, developing and implementing complex technical solutions to address a variety of business problems; this includes hardware, software, configurations standards, and creating solutions with specific focus on driving business value
• Administering and setting up OS X for working with MAC OS X.
• Annual patching of servers on SUSE Linux, Linux and Solaris environments
• Supported Oracle RAC environment on multimode servers, using PowerPath for disk mp I/O
• Built Linux and SUSE Linux servers on stand-alone Dell PowerEdge and HP Blade 460R servers using DRAC and ILOMs.
• Used Linux firewall to create DMZ, setting to route traffic to certain machines on a DMZ for HTTP or SMTP
• Installing various 3rd party and freeware modules and packages as required, e.g perl, gcc, python, etc
• Migration of Solaris and Linux servers using EMC RPA recovery point.
• Monitoring and administration of EMC Clariion storage.
• Troubleshooting functionality and performance issues using top, nmon, vmstat, sar, iostat, etc
• Worked with cross functionality technical teams (middleware, storage, network, security, etc) to complete builds of servers within given projects in a timely manner
• Working with Project manager and lead DBAs and plan migrations.
• Configuring domains on M4000 & M5000 servers.
• Working on server Hardware upgrades.
• Creating Sun virtualization zones/containers/LDOMS(logical domains )
• Setup and Maintain Healthcare Imaging Solution on Oracle Linux Environment
• Setup and Maintenance of Healthcare Imaging Solution PACS
• Documentation of new application installation and solutions.

Confidential, San Antonio, TX

Linux Systems Administrator

Responsibilities:

• Involved in installing, Configuring and administration of Redhat Linux, Suse Linux, Windows servers by using Kickstart server.
• Supported various application running on Ubuntu 12.x, Red Hat Linux4.x/5.x and VMWare ESX 4/5.
• Configuring & administration of Cassandra.
• Configured & Maintained Java application servers like Tomcat & messaging servers like Activemq.
• Worked on Patch and Package administration, installed various third party tools on servers.
• Worked extensively on troubleshooting including file sytem full, server panic, network troubleshooting and used various tools like vmstat, netstat, iostat, sar, prtdiag, ping etc.
• Involved in creating recipes for Chef to deploy configurations across 200+ Linux servers which Physical and Virtual.
• Installation, Configuration and support for Redhat Satellite Server and for upgrading and patching Linux Servers.
• Design and implement automatic deployment of OpenStack-based clouds for enterprise customers
• Develop written procedures, engineering drawings, and other technical documentation
• Coordinate and perform preventative maintenance of major systems components
• Configuration management of the Infrastructure using Chef Servers
• Rack mounted IBM HS & Dell Power Edge Blade Enclosures systems and configured Blade Consoles software to manage blades inside enclosures.
• Supported various backup teams - VERITAS Netbackup and TSM for backup administration.
• Installation of SSH and configuration of key based authentication.
• Assisting Development team to provide the information and troubleshooting.
• Administration of NFS, NIS, DNS and Send mail servers.
• Working experience with OpenStack: deployment, configuration, operations
• Provided 24X7 supports for various Production, Development and Test servers.
• Supported a Data Center consisting of more than 1000 + servers.
• Worked on creating and editing scripts (shell scripts) to automate various processes.
• Automated and executed Office 365 procedures utilizing Windows PowerShell.
• Resolved tenancy technical issues and monitored Office 365 systems.
• Administered and supported Office 365 and MS Exchange policies.
• Initiating Backups on daily basis and monitoring the scheduled backups.
• Worked on tickets to resolve day to day hardware/software/application bottlenecks.
• Constant Monitoring of System Performance using monitoring tools.
• Worked on HP Service Manager for Incident, Change Management and participated in Root Cause analysis of recurring issues, documented all the activities.
• Participated in Bridge calls, worked with various teams to solve issues related to servers & applications, worked closely with Vendors on Hardware Problems, software issues.
• Involved in Day-to-Day trouble shooting for the end users on Unix/Linux based applications.
• Configuring & deploying application using Tomcat web servers.
• Troubleshoot OpenStack deployment consistency
• Administration of monitoring infrastructure consisting of Nagios server with Centreon as web interface for configuration and display of performance data.
• Developed utilities in python, including templates and configurations for Nagios, MRTG, and basic system configurations. Wrote custom plugins for Nagios.
• Designed and implemented system to generate dynamic Nagios configuration.

Confidential, Minneapolis, MN

UNIX Administrator

Responsibilities:

• Installing, upgrading and configuring SUN Solaris 8, 9 and 10 on Sun Servers using jump start and Linux Operating System.
• Plan and implement assigned projects, change management, on-call support, and hotline bridge participation.
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, NIS+ and Samba Web servers on Sun Solaris, and Linux platforms.
• Involved in setting up accounting systems and performing ongoing system with the administrative tasks. Extensive user and group management through admin tool.
• Troubleshooting and analysis of hardware and software failures for various Solaris servers (core dump and log file analysis).
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Installation and monitoring of Sun Volume Manager, Sun Cluster Server in SAN Environment.
• Providing 24 x 7 supports to various application level server level & network level Monitoring and troubleshooting of any datacenter outages.
• Providing Support to networking services and protocols such as TCP/IP, NIS, DNS, NFS, LDAP, IPTABLES WinShark, firewalls. FTP, SSH, SMTP, SNMP, SSL, and HTTP.
• Involved in development, user acceptance, performance testing, production & disaster recovery servers
• Supported databases like Oracle & Web servers like Apache and Tomcat.

Confidential, Minneapolis, MN

Systems admin

Responsibilities:

• Maintaining Solaris 7,8.0, RedHat Linux - installation and configuration of servers.
• Setup and Administration of seven Dell PowerEdge servers, which are connected to more than 4000 clients. MS Windows 2000 Server and Client, Active Directory Services, DHCP.
• Job responsibilities include maintenance of LAN/WAN Connectivity and Monitoring, inter-networking DMZ configuring and maintenance of Routers, gateways and other networking Components.
• Providing Online Support for the Custom built Transcription Software in all the Offices to ensure productivity.
• Adding LUNS to the servers for provisioning disk space, and resizing file systems.
• Upgrading service controller firmware on T2000/T5220 servers.
• Installing BMC package for data collection, Tivoli package for monitoring, ESM package for monitoring configuration files and troubleshooting.
• Involved in data center migration, SAN switch and SAN storage migration.

Confidential

Linux System Administrator

Responsibilities:

• Analyzing, troubleshooting and resolving problems involving operating system issues, application issues, Website issues. Installed, configured and upgraded Red Hat Enterprise Linux 4.x to 5.x and configured various patching schedules to meet patching criteria quarterly.
• Installing of software packages using RPMs & YUM
• Disk Management - Partitioning of disk as per requirement, file system creation and management.
• Experience in Red Hat Cluster, Logical volume Management (LVM) and RAID in Linux.
• Swap management, Knowledge of IP tables, SELINUX.
• Health check for Sun Fire Server.
• Installed and configured ESX 3.5/4.0 Servers on Blade servers. Creating Virtual machines. Creation of templates from VMs and Creation of VMs from templates.
• Performed physical to virtual (P2V).