SUMMARY:

• Over 9 Years of Experience in UNIX/LINUX Systems Sun Solaris (8, 9 and 10), RedHat Linux 4.X,5.X and 6.X,7.X, CentOS, SUSE, Debian, OEL &HP - UX 10.x, 11.x and AIX (6.1, 5.x).
• Installation, administration, implementation, testing and maintenance of complex and heterogeneous networks consisting of Linux (Red Hat), Sun Solaris 8/9/10, IBM AIX, SuSE, Windows.
• Configured ILOs and Console connections for HP and SUN servers.
• Configuration and administration of EMC Vmax san array on SMC/SPA, creation of thin devices, meta devices and virtual devices as for database space allocation, administration on EMC Unispehere. Report generation for array disks, heat maps, I/O status.
• Configuration and administration of Sun Storage Tek 6140 for database and application on RAID1+0, RAID 5 configured by array manager.
• Experience in installation, configuration and volume/disk management using Veritas Volume Manager (VxVM), Solaris Volume Manager (SVM) and Veritas File System (VxFs) in Solaris and logical volume manager (LVM) in Linux. Installation and administration of zones on Solaris 10.
• Network configuration for interfaces, switch ports, Ethernet cards, host names, net mask and routes details, DNS, NFS, LDAP, NTP and SNMP etc.
• Understanding and troubleshooting skills with networking communications and protocols such as TCP/IP, NFS, DNS, SMTP.
• Extensive experience in Linux performance monitoring and kernel tuning and Load balancing.
• Installation, configuration of Package and Patch Management.
• Worked on GFS (Global File System) on Linux and ZFS (Zeta byte file system) on Solaris.
• Extensive experience in Linux performance monitoring by using top and prstat and load balancing, security setup, troubleshooting.
• Experience in maintaining/tuning/upgrading Web servers/Web application for Java applications.
• Installation and configuration of Oracle RAC clusters on Linux/Solaris environment
• Extensive experience in IPMP (IPmultipathing) in Solaris and Multipath and Bonding in Linux
• Performed planning and implementing migrations on Solaris and Linux servers
• Experience on VMware Installation, configuration and monitored virtual environments with ESX 4x,5x servers and VirtualCenter4x,5x.
• Experience on backup and recovery software like Veritas Net backup 5.1 and 7.5 on Linux environment.
• Installation and configuration of guest Operating Systems like Windows, Linux and Solaris for different applications on ESXi environment.
• Familiar with shell scripts run on Linux and Solaris environment and administration.
• Work support to all Linux system problems 24x7 and resolving them in timely basis and ensuring high availability.

TECHNICAL SKILLS:

Operating System: Solaris 10/9/8, HP-UX (10.20, 11.00, 11.11, 11.23), IBM AIX (4.3, 5.1L, 5.3L), RedHat Linux (AS/ES 4/5/6),VMware ESX 4.X, Windows NT 4.0/2000/2003/ XP/vista

Scripting Tools: C, C++, HTML, BASH, KSH, CSH

Scheduling Tools: Autosys, Crontab

Middleware Servers: Apache, Tomcat, Jboss, Web logic & Web Sphere

Security: SUDO, SSH, SSL

Networking: DNS, DHCP, TCP/IP, NFS, NTS, SMTP, LDAP

Email Servers: SMTP, POP, IMAP, Postfix, Sendmail

Database: Oracle, DB2,MySQL.

Others: MS-Office

Third Party Tools: Splunk, Puppet, Chef, DevOp

Virtualization tools: VMWarevsphere, ESXi

PROFESSIONAL EXPERIENCE:

Confidential, Hartford CT

Sr. Unix/Linux Administrator

Roles and Responsibilities:

• Installation/configuration of Redhat 4/5/6 using kickstart Server and Solaris 9/10 using Jumpstart.
• Performing Post Build activities like Setting up Backup interface/ NIC bonding/ Loading additional Packages/ Joining the server to Active Directory, etc
• Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure.
• Worked with EMC SAN to acquire storage and setting up Veritas/LVM file-systems.
• Responsible for automating build and monitoring tasks across AWS and Rackspace using a variety of tools such as MongoDB, NginX, Jenkins, and JIRA.
• Worked on setting up Veritas clustering and experience in using VERITAS Volume manager. Creating new file systems, mounting file systems and unmounting file systems.
• Worked with Oracle DBA's for restore of Oracle Instance and Building Oracle RAC Cluster.
• Worked on creating Virtual machines using VMware
• Experience with working on Solaris Zones/Containers.
• Performed hardware, operating system, security and application updates/patches on these systems as well as operating system hardening based in industry standards.
• Experienced working with sudo, Vintella Authentication and Powerbroker.
• Experienced working on Datacenter Migration Projects.
• Mirrored existing logical volumes & created volume groups, disk groups & set up the RAID (0,1,5) using VERITAS volume manager. Migrated the existing UFS data to VxFS for best possible IO performance.
• Installed/Configured the WebSphere server, JBoss application server, Web logic server; Managed tuning and performance of high profile applications running on them.
• Working Knowledge of Network Protocols such as NTP/ NIS/ TCP/ DNS/ DHCP/ HTTP/ SMTP/ SFTP/ FTP/ SCP/ NFS.
• Worked with Enterprise Security Manager to get Security certification for servers before moving them in to production.
• Responsible for Failover/Pre-Failback/Failback and verification of the same in case of outage in the high environment using VCS (VERITAS Cluster Server).
• Developed Cron jobs and Shell Scripts (Perl, ksh) for automating administration tasks like file system management, process management, Server reboots etc.
• Worked on Datacenter Moves where servers were moved from one datacenter to another.
• Working very closely with vendors (IBM/HP/Sun/EMC) in resolving any hardware/ Storage and Network issues.
• Monitoring the system performance and doing the kernel tuning to enhance the system performance.
• Troubleshooting Production Server Problems related to web applications, Sendmail, disk space, file system, DNS and network connectivity.
• Provided 24/7 on-call support on a weekly basis.

Environment: RHEL 3, 4.x, 5, Solaris 9, 10, Veritas Storage Foundation 5, Oracle 10g/11g, Veritas Cluster

Server, Zones, RAC, DMZ, Send mail, SAN, NAS, Active Directory, NIS, ITM, Bladelogic, Remedy, VMware, Netbackup 6.5, BMC Patrol, LVM, VAS, Websphere

Confidential, Fort Worth, TX

Sr. Linux/Unix Administrator

Responsibilities:

• Installed and configured RedHat Linux (5.x), Solaris8/9/10(SPARC & X86), AIX 4.3/5.1/5.2/5.3/6.1 on AIX RS6k platforms, pSeries and BladeCenter and maintain upgrade packages, monitoring and analyze performance running with Oracle 10/11g database servers.
• Experience with configuration management and automation software such as Puppet and Chef.
• Host Integration of Symmetrix and Clariion with Solaris, Linux, Vmware ESX and Data Migration on Symmetrix DMX/Vmax.
• Configured LDAP clients on server test and troubleshoot for maintaining network and data security.
• Configured Jumpstart server for Solaris 10, Kickstart server for red Hat Linux, NIM for AIX and performed image installations through Network.
• Installing, configuring and maintaining AIX/Linux servers including the Logical Partition (Lpars) on pSeries servers as required.
• Extensively used RPM RedHat Linux tools to install packages and patches for RedHat Linux server and Vir-Install, Vir-manager to install and manage the Virtualized OS.
• Used EMC Solutions Enabler APIs for the storage interfaces that provide an access mechanism for managing Symmetrix third-party storage, switches, and host storage resources.
• Sun Cluster to VCS Migration - Migration of Cluster infrastructures from Sun to VERITAS (VCS / VxVM / VxFS)
• Administered server consolidation program using VMware ESX server and VMware Virtual Center, using Virtual Center, ESX, creating VM's, using/building VM templates and customization files and scheduling task.
• Managed Storage Connectivity for Solaris systems - Software/Hardware used in connecting to SAN fabric, development of scripts to populate sd.conf and verify DMP connectivity, HBA logging, etc.
• Extensive use of Logical Volume Management (LVM), creating Volume Groups, Logical volumes and disk mirroring for Linux/AIX.
• Troubleshooting the network and Domain Name System (DNS) issues and taking care of VERITAS Netbackup server and client
• Connectivity problems and Sun server consolidation via virtualization (LDOMs and Containers).
• Installed and configured WPARs Manager and agent to prevent memory and migration Manager Database from Apache to DB2.
• Developed automated scripts/system monitoring tools/ testing tools using shell and Perl Scripting.
• Planned and performed the upgrades to Linux (RHEL 4&5, SuSE9, Centro’s) OS and hardware maintenance like changing memory modules, disk devices & SCSI devices.
• Setup and configured the SAN Storage DS8300, DS4300, DS4800, Sun Storage Tek 6140 Array, provided support for multi-path Fiber Channel storage systems.
• Set up Tivoli Storage Manager (TSM) for backup automation with policies configuration for Web based databases, setup consisted of server and client backup with progressive backup methodology.
• Configured the cluster resources and provisioned Tape backups using VeritasNetbackup that includes Fiber zoning for media servers and Tape drivers, configuration of Storage units.
• Migrating various IBM P & I Series Servers to newer IBM Power6 servers using Virtual I/O (VIO) and SAN Volume Controller (SVC), EMC Power Path for migrating Data and host based encryption including Dynamic Multipath (DMP).

Environment: RHEL 5/6, RedHat Satellite Server, VmwareESXi, HP Proliant DL380/DL580/BL 460c, Oracle RAC,VeritasNetbackup, Apache, Solarwinds, VAS/QAS

Confidential, Irvine, CA

Linux Administrator

Responsibilities:

• Experiences in Server build using Jumpstart, NIM, Ignite and kickstart Process.
• Extensively involved configuring & administering Net Backup clients, AutoSys, SAN Devices & Other Storage solutions like Power Path and VERITAS DMP.
• Extensive experience in Performing SAN migration on Solaris servers from IBM Shark to SVC storage.
• Extensive experience in UNIX performance monitoring and kernel tuning and Load balancing (F5 Load Balancer) to ensure stable performance.
• Proficiency in VMware. Installation and monitoring Virtual environments with ESX 3.x Servers and Virtual Center 2.x.
• Experience in installing, configuring and monitoring, VERITAS Volume Replication (VV), VERITAS Cluster Server (VCS), Sun Cluster Server, HP Service Guard, Red hat Cluster Server and HACMP cluster in High Availability Environment.
• Extensive experience in configuring Global File System(GFS) and Zeta byte File System(ZFS)
• Good experience in creating physical volume, logical volume, volume groups using LVM's in Linux
• Worked on installing and configuring VMware/Esx Servers for virtualizations.
• Extensive experience in Korn Shell and Perl Scripting, SQL.
• Devise strategies for Disaster Recovery Management (DR), including planning and designing servers for back up, recovery and archival of server / database information.
• Widely worked on Disk and File system management through Logical Volume Manager (LVM) on Linux and Solaris Volume Manager (SVM) on Solaris.
• Advance level of experience in researching OS Issues, applying Patches and opening the Vendor Tickets like Remedy, Redbox.
• Worked closely with People soft, Jboss& FIX applications from the UNIX perspective.
• Strong working knowledge of Routers and Switches, Sub netting, VLAN, TCP/IP, VPN, OSI model, Firewall (checkpoint), VOIP and Sarbanes Oxley compliance (SOX).
• Technical professional with management skills, excellent business understanding and strong communication skills.

Environment: Solaris 9/10, AIX 5.3/6.1, Oracle 10/11, Logical Volume Management (LVM), VERITAS Cluster

Server (VCS), Web logic 8.1, Oracle e-business suite, IBM SAN storage, LDAP, VMware ESX-3.5.

Confidential

System Administrator

Roles and Responsibilities:

• Installed numerous operating systems (i.e. Windows NT/2000/XP/Vista & Linux)
• Managed and monitored industry-specific application servers.
• Performed routine system management, operating system upgrades and software updates.
• Installed and configured anti-virus software with its updates and industry specific software.
• Configured Microsoft Outlook (2003, and '07) and maintained Exchange servers
• Provided technical support to over 80 regional office users locally and 400 remote users in 6 branch offices
• Responsible for overseeing and troubleshooting LAN, WAN and more than 250 PCs and peripherals.
• Monitored VSAT and Leased Line Networks.
• Maintained VPN, Squid, and Samba Servers.
• Produced and applied script for automation of routine tasks like 8 hour net disconnection and daily log backup on Linux servers.
• Granted remote user access to corporate LAN with VPN Connectivity.
• Installed and configured ISA Server 2006 on Windows 2003 to restrict the use of Internet.
• Trained two engineers to perform daily processes such as uploading industry-specific application files to upload its application server
• Trained and mentored a team of junior engineers to coordinate software and hardware upgrades.
• Train employees on proper usage of newly-arrived hardware or software.

Environment: Solaris Enterprise servers, E10k, E15K, SUN-Fire family - V240/V440/V490/V880/V1280/E2900T5220/5120, M4000/M5000.IBM Pseries, PowerPC, hardware including LPAR capable systems.

Confidential

Linux System Administrator

Roles and Responsibilities:

• Worked with code review tools like OpenGrok and indexing tool Lucene
• Used the Python scripts and the Solaris Environment to configure the tools
• Created the ANT scripts for deployment of jars to the Weblogic servers
• Worked on configuring the Routing Rules in the web server
• Configured the JDBC/JMS in the application servers
• Worked on maintaining the repositories SVN, CVS (branching, merging, cloning etc...)