SUMMARY

• 7 years of experience as a System administrator in Linux and Windows platforms with hands on experience in Red Hat Linux, HP - UX, Sun Solaris, and Windows environment
• Hands on experience in systems setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different UNIX platforms like Linux, HP-UX, Sun Solaris and Windows system software and hardware as well as networking
• Worked extensively on SUN SPARC & X86 platforms including Sun Fire V440, V120 and V480, V490, Sun Fire X4100, X4170, X4200, X4540, X4440 and X4500, Sun Enterprise Servers T5120, T5220, T5240, T3-1, T3-2, M5000 & M9000 servers as well as Dell PE 2600, PE 1900, PE 2800, PE 2900, PE 2950, PV NX 300, HP and Lenovo Servers
• Installing, upgrading and configuring RedHat Linux 3.x, 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation
• Installing, upgrading and configuring SUN Solaris 7, 8, 9 and 10 on Sun Servers using Jumpstart, Flash Archives and Interactive Installation
• Experience in Virtualization by Zones configuration on Solaris 10 and also with VMWare ESX 4.1 in Linux and Windows Environment
• Expertise in RAID Configuration, Veritas Cluster Server, Veritas Volume manager, Logical Volume Manager and Veritas Net Backup
• Efficiently implemented network file sharing by configuring NFS to share files and resources across the network
• Extensive Shell, Perl and Python scripting experience
• Scheduling various cron jobs for backups, database, and proprietary jobs using CRON and BMC Control-M and troubleshooting daily job problems
• Experience with Virtual Memory and swap space on Solaris systems
• File system tuning using Veritas File System (VxFS)
• Planned, documented and supported high availability, data replication, fail-over and fall-back Solutions using Veritas Cluster Server 5.0, 5.1 in SAN environment
• Coordinated with SAN Team for storage allocation and Disk Dynamic Multi pathing. Worked on Various SAN Products like Net App, EMC Symmetrix, Hitachi data systems
• RDBMS installation and support for Oracle, SQL Server, MySQL
• Worked with Backup Team to Configure the Master and Client Backup servers Using Veritas Net Back up
• Working Knowledge on Veritas Storage foundation (VSF) and Veritas Volume Replicator (VVR).
• Experience in Windows Domain Controller, Active Directory configuration, users and group creation and management, folder permissions, network sharing, backup and maintenance
• Experience in setting up LANs and WANs
• Configuration and maintenance of various routers firewall and wireless access points such as Cisco, Sonicwall, Checkpoint, Meraki etc.
• Effective leader, motivator and team player with excellent planning, coordination, time management, supervision and organizational skills

TECHNICAL SKILLS

Operating Systems: Linux Red Hat 3/4/5/6, AIX 4.3/5.1/5.2/5.3 ; HPUX 10.x/11.x, Sun Solaris 7, 8, 9& 10, VMware 3.5/4.1, Windows 98/XP/Vista/7, Windows Servers 2000/2003/2008

Hardware: Sun Fire V440, V120, V480, V490, V880, Sun Fire X4100, X4200, X4440X4140, X4170, X4500, X4540 Sun Fire 2900, 4800, 6900, Sun Enterprise Servers T5120, T5220, T5240, T2000, T3-1, T3-2, M5000 & M9000, IBM Blade center and Dell PE 2600, PE 1900, PE 2800, PE 2900, PE 2950, PV NX 300, various HP and Lenovo Servers

Tools: VERITAS Volume Manager, Veritas Cluster Server 4.1/5.0/5.1, VERITAS Net backup 5.1, Sun Cluster 2.x & 3.x, VMWare ESX

Languages: Shell, Perl & Python Scripting

RDBMS: SQL, Oracle, MySQL

Networks: NIS, NFS, LDAP, DNS, Routers and Firewalls

Protocols: TCP/IP, FTP, SSH, SFTP, SCP, SSL, ARP, DHCP, TFTP, RARP, PPP, POP3SMTP

Storage: Netapp, Hitachi, EMC Symmetrix

PROFESSIONAL EXPERIENCE

Confidential, San Antonio, TX

Linux Administrator/ Unix Admin

Responsibilities:

• Installed and configured RHEL 4.x/5.x, Windows 2003/2008 for production, staging and test environments
• Configured File Systems using ZFS/vxfs/svm for Oracle Databases
• Involved in troubleshooting of UNIX technical problems received through e-mail and Clarify Ticketing Tool, Backup solutions according to the SOP & SLA
• Generating reports, Preparing Quality Documentations & uploading to VSS tool
• Monitoring, troubleshooting & reporting daily backup status for all critical production UNIX servers enterprise-wide
• Scheduling and Managing Backup jobs using Veritas NetBackup 5.1
• Scheduling cron jobs for disk utilization, CPU utilization, backup of the data & operating system and other applications as per the requirement using shell scripting
• Installation and configuration of Windows 2003/2008 including Active Directory Services, IIS, DHCP on several Dell and HP servers
• Installed Application Agents on 1500 Virtual/Physical servers in windows 2000/2003/Linux.
• Configured devices by using HDLM software from Hitachi SAN
• Setup of full networking services and protocols including NIS/NFS, DNS, SSH, DHCP, TCP/IP, applications, and print servers to insure optimal networking, application, and printing functionality
• Administered, maintained Red Hat 3.0, 4.0, 5.0 AS, ES, Troubleshooting Hardware, Operating System. Application & Network problems and performance issues; Deployed latest patches for Linux and Application servers
• Disk Space management using VERITAS Volume Manager
• Configuration of Hardware and Software RAID. Disk replacement and File system recovery
• Implemented Virtualization using VMware. Installed VMware ESX server on Dell Servers and configured Red Hat Linux 4.0 / Windows 2003 virtual machines for various applications.
• Installing and setting up Oracle 9i on Linux for the development team
• Installation of software packages and checking the integrity of the installed packages. Installed different RPM Linux 4.0/5/0
• Administered Linux servers for several functions including managing Apache server, mail
• Installed and configured Sudo for users to access the root privileges
• Integrating UNIX file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms
• Worked with different hardware and software vendors to troubleshoot the hardware and software problems
• Responsible for backup and recovery of servers. Documented backup policies and procedures for backup routines, schedules and restore policies
• Managing cron jobs, Confidential Jobs, batch processing and job scheduling

Environment: Red Hat Linux 4.x/5.x, VMWARE, SUN SPARC workstations (A21, A22, A70, A89),NFS, NIS, DNS; IBM 8677, IBM Blade centre Servers (HS20, HS21), Lenovo Workstation’s (D2, D3, D10, D20), IBM P520, P550, P560, P570, P575, P595, IBM IntelliZpro-9228, DELL PowerEdge 1650,2850,2950,6400.

Confidential, Seattle WA

Linux Administrator/ Unix Admin

Responsibilities:

• Involved in configuration and support of a production environment hosted in a 24x7 setup
• Installation and Configuration of Linux, AIX, and Windows/NT operating systems on large distributed environment
• Managing Disks/File systems using Veritas Volume Manager
• Setting and Managing NFS, NIS, DNS, Shell Scripting, patching
• System performance tuning, User maintenance and security
• Scheduling Backups, Monitoring & taking failover test of Veritas Clustered servers
• Trouble shooting and problem resolutions in Linux and AIX servers
• Procedural documentation of supporting applications as well as SLA and escalation policies to coordinate with the monitoring systems as deployed
• Responsible for first and second level problem analysis and resolution for system and application tools utilizing already existing UNIX scripts and Windows run books
• Installation and support of various versions of Oracle, SQL Server and MySQL databases
• Used various networking tools such as ssh, telnet, rlogin, ftp and ping to troubleshoot daily networking issues
• Ability to screen and diagnose client inquiries and problems; troubleshoot to clearly understand problems (root cause determination), solve problems, use operational documentation (runbooks)
• Responsible for administering and maintaining Linux work stations running Apache web server
• Installed and configured SSH, NDM, EMC Power path, Veritas Dynamic multi-pathing, Oracle client
• Expertise in Linux backup/restore with tar including disk partitioning and formatting
• Managed email (Postfix and Sendmail), LDAP and Oracle services
• Work with developers to integrate their web applications onto standard infrastructure
• Writing scripts for monitoring log files and sending alerts
• Involved in the Recovery of the Unix servers
• Installation of SAMBA utility software

Environment: Red Hat Linux 4.x/5.x, AIX, BMC Patrol, NetBackup, MQSeries 5.0 WebLogic 6.1, NES/iPlanet4/6, Windows, Solstice Disk Suite 4.2.1, EMC Centera; EMC Connetrix, SAN Switches, Tape Libraries, EMC Powerpath 4.0, Sun Storage Array NAS and SAN, Sun Disk Suit and MySQL 5

Confidential, Middletown NJ

Unix/Linux System Engineer

Responsibilities:

• Installation and configuring of Linux servers and SUN Solaris
• Involved in Building and configuring Red Hat Linux Servers Using Kick Start server and Solaris 8/9/10 using Jump start server and as required for the project
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and Staging
• Primary responsibility includes building and supporting Red hat Linux 3, 4 servers/Solaris
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat WebSphere and Weblogic application server
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment
• Installation and configuration Veritas NetBackup on Sun Servers
• Extensive use of Korn shell, Bash for scripting
• Expertise in Linux backup/restore with tar including disk partitioning and formatting
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems
• Planned, scheduled and Implemented OS patches on both Linux & Solaris boxes as a part of proactive maintenance
• Worked with other IT teams including Database and Network Teams, customers (users), and other managers in helping build and implement systems and standards
• Involved in migration of projects from one flavour to another one
• Involved in development, user acceptance, performance testing, production & disaster recovery server

Environment: Red Hat Linux 4/5 NAGIOS, Solaris 8/9/10, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers, SAN Switches, Apache, Tomcat WebSphere, Weblogic application server.

Confidential, Costa Mesa CA

Unix Administrator

Responsibilities:

• Responsible for building and supporting Linux/AIX/HP-UX/Solaris/ Windows Servers
• Administration and auditing the SUN servers and installation of the patches on production and development systems
• Configuring NFS, NIS, DNS, Auto-mounter and disk Space management on SUN servers
• SENDMAIL configuration and administration, testing the mail server
• User administration, management, File permissions & archiving
• Configuration of Veritas Volume Manager s/w. Solstice DiskSuite 4.2.1, Shell scripting, Printer installation, and problems escalation
• Administration, fail over/testing of clustered nodes
• Patch administration & Oracle startup/shutdown. Backup and restoration using Solaris in-built commands. Managing the project of customer, interacting with management, suggesting technical solutions
• Troubleshooting the network issues and response problems
• Creating new file systems, managing and checking data Consistency of file systems
• Maintaining the CPU & Memory utilization of SUN Servers reports on the WEB
• Writing Scripts for automating and testing the code
• Experience with OS upgrades and installation of third party software, packages and patches
• Scheduling full and incremental backups using NetBackup on daily, weekly and monthly basis
• Involved in planning, design and migration of data centres between buildings after accessing all requirements and using current hardware and new hardware
• Enhanced shell scripts from scratch for patch automation
• Experience with adding and configuring devices like Hard disks and Backup devices etc.
• Used VMWARE in this project as a virtualization tool
• Configured RAID 0, 1 and 5 levels
• Experience with configuring and managing Virtual disks, Disk

Environment: Red Hat Linux 3.x/4.x, AIX 4.3.2, Solaris 7/8, SUN Enterprise Servers, VERITAS Volume Manager 4.X, Shell scripting, SENDMAIL Protocol, Tape drive, Unix/Windows Workstations, VMWare, IIS, Apache

Confidential

Unix/Windows Administrator

Responsibilities:

• Installing, configuring and upgrading Linux and Windows Servers
• Installing and partitioning disk drives. Creating, mounting and maintaining file systems to ensure access to system, application and user data
• Installing, configuring and administering NIS master server and NIS slave server
• Data consistency of file system using fsck and other utility
• Co-coordinating with the customers vendors for any system up gradation and giving the exact procedure to follow up
• Scheduling the daily/weekly/monthly backups
• Patching up the system to the latest version as per the recommendations
• Monitor the health of the servers, Operating system, database and the network
• Maintenance of Hard disks (Formatting and Setup, Repair from crashes)
• Installing & administering NFS services using automounter
• Regular disk management like adding/replacing hard drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems
• Creating users, assigning groups and home directories, setting quota and permissions; administering file systems and recognizing file access problems
• Maintaining appropriate file and system security, monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of process in order to increase the system efficiency, scheduling system related and cron jobs
• Installation of Oracle databases 8i/9i
• Build and maintain windows 2000 and 2003 servers
• Worked on migrating from windows
• Managed windows servers, configured domain, active directory; created users and groups; assigned permission to the groups on the folders
• Setup LANs and WLANs; Troubleshoot network problems. Configure routers and access points

Environment: Windows 2000 & 2003, Sun Enterprise servers E4500, E3500 and E250 SunFire V480, Sun Ultra Sparc 5/10, Sun Blade servers, Oracle 8i/9i, NFS, BMC patrol and HP OpenView Servers, Intel based Servers, LAN and WAN