SUMMARY:

• Over 8+ years of IT experience in system design, implementation, administration, and application - production support in heterogeneous environments.
• Experience in Sun Solaris 10 (Creation of Zones, Virtualization, Service Management Facilities)
• Expertise in VERITAS Volume Manager, Cluster, Net backup, RAID, Sun-Cluster, and expect/Shell/Perl Scripting.
• Experience in installing, configuring and maintaining RAD Server along with resource repository Clear Case and back end db2.
• Extensive experience in UNIX performance tuning Configuration and Capacity Planning.
• Expertise in disk and file system management through VERITAS Volume Manager and other logical volume manager.
• Worked on user and security administration, backup and recovery and coordinated daily activities of onsite person to resolve the issues.
• Strong networking experience in designing and implementing LAN, WAN services and IP Addressing Schemes. Switch and Router configuration and customization with VLAN and Inter-switch communication. NIS PLUS design and implementation.
• Configured and used JumpStart, kickstart, Ignite and NIM to install OS.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Managed resources for zones using Solaris 10 container technology.
• Created ZFS file system.
• Used Solaris Live Upgrade to upgrade operating system from Solaris 8/9 to Solaris 10.
• Experienced with the installation, configuration and volume/file system management using VERITAS Volume Manager, Logical Volume Manager (LVM) and Solstice Disk Suite (Solaris Volume Manager).
• Supported systems running various data bases like Oracle, SQL, DB2/UDB, AS/400 and Sybase.
• Experience with System administration of UNIX Shared Services in Staging, Testing, Production and Development (24x7) environment.
• Experience of Storage Area Network/SAN, EMC Symmetrix / CLARRiiON.
• Through Knowledge of UNIX internals and utilities. (Kernel, Memory, Swap)
• Supporting the storage and application team for EMC, SAN, Hitachi, iPlanet, Weblogic and also managed tripwire server.
• Installation and upgrade of software and patches (kernel, firmware), configuration mgmt, version control, writing run books and technical documentation.
• Experience in security hardening, Infrastructure monitoring tool design and implementation and updating firmware as well as OS kernel patching in heterogeneous environment.
• Independent problem solving and a good team player with strong interpersonal and communication skills.

TECHNICAL SKILLS:

Operating System: Red Hat Linux 6/5/4, Solaris 10/9/8, IBM AIX (5.x, 6.x), Ubuntu 6, Windows 2000/2003/2008/ XP/VISTA.

Hardware: Sun Fire 280R/V480/490/E10K/E15K server, T2000, Sun Enterprises 450/420R/250 Sparc T5220, Sun Fire X4150, HP Proliant DL380 G4/5(LINUX), HP-UX (rx6600/3600, rp 7420/7410/8400/5405/3440 ), (AIX) IBM 7026-6H1, IBM, IBM, IBM, iLO in-built Sun Hardware.

Cluster: VERITAS Cluster, Sun cluster.

Web /Application Server: Tomcat, Apache, Iplanet, IBM RSA, WebLogic.

Firewall: Checkpoint

Languages: UNIX Expect/Shell Scripting, Perl, C/C++, Java, JSP, HTML, J2EE.

Databases: Oracle, SQL, DB2/UDB, LDAP, AS/400, Sybase.

Server access Tool: Secure CRT, Putty & Cyclades.

Networking Tool: LAN, WAN, Cisco Switches, FC, HBA, DHCP, DNS, NIS+

Backups and Storage: VERITAS Net Backup, Hitachi, NAS, EMC (Symmetrix, CLARiion)

Monitoring: Sun MC 3.5/4.0, .Net Connect, HP Open View, NAGIOS, Home grown scripts.

Help Desk Management: REMEDY, Net Cool, HP Service Center.

Communication: Humming Bird (Exceed), Blue Zones, Lotus Note, MS out Look.

PROFESSIONAL EXPERIENCE:

Confidential, Frankfort

Sr. Linux / Unix Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Sun Solaris, AIX, HP-UX, Linux.
• Automated daily tasks through korn and Perl scripting. Examples include: reporting invalid login activity, mailing errors from error report, removing old print files.
• Wrote korn and awk scripts to analyze security of AIX pSeries boxes.
• Install, customize and provide support for various .UNIX tools and applications: VERITAS Cluster Server, VERITAS Volume Manager, LDOM, Zone etc.
• Installed and configured the SUN system, Solaris, LDOM, Solaris Cluster 3.2 for ERP Solution.
• Starting with NetBackup 7.5, the NetBackup Product Improvement Program captures installation deployment and product usage information.
• Configure NetBackup master (or) media server on Unix and Linux Platforms.
• Configure storage serveron NetBackup, media server disk pool using data domain (OST) and de-duplication on DD-Level.
• Create NetBackup SLP Backup to Disk, Disk to disk and disk to tape backup.
• Configure NetBackup agent domino backup, NetBackup SQL agent backups and Oracle agent using RMAN.
• Tape drive & Data Domain capacity planning on backup environments.
• Manage the Teradata Servers across the globe, monitor the performance of databases and make tuning changes, researched and evaluated alternative solutions related query performance and recommend the most cost effective design solutions.
• Responsible for Patch upgrades, performance monitoring, responding to Alerts, tuning, creating appropriate Indexes, and creating Incidents with Teradata and assistance/follow up with the CSR.
• Set up and implement backup/recovery and security strategies, setting up the policies/schedules using NetBackup console and TARA.
• Involved in installing/testing/documenting the Golden Gate for replication for Teradata systems across the globe.
• Utilized ODBC for connectivity to Teradata via MS Excel to retrieve automatically from Teradata Database.
• Have hands on experience in enterprise monitoring tools like EMC Data Protection Advisor and BMC BMS.
• Installing NBU binaries and migrating client servers from EMC Networker(Legato) environment to new target master using NetBackup 6.5,7.0.
• RSA and DSA Configuration in Solaris.
• Configured RSA and DSA in Sun, Linux.
• Design and implementation of Nagios in a multi-datacenter environment .
• Integrating Nagios with other monitoring/alert solutions (splunk, pingdom, pagerduty)
• Scripted in korn shell to automate system information gathering and administrative procedures.
• Experience in All levels of RAID Configuration and Management using Raid Manager .
• Installing and Configuring Services like SSH, FTP, HTTP, SAMBA, DNS, DHCP and NFS.
• Identify Host Architecture, HBA, LVM, SVM, VxVM/VxFS, Drivers, BIOS Firmware Versions, VERITAS Cluster, Installed Patches, Packages and File Systems for Solaris, Linux and AIX .
• LUN Creation and allocation using Storage Navigator, HDvM on USP-V .
• Migration of Data from Hitachi Legacy Storages to USP-V using UVM and HTsM.
• Worked with VMware ESX Server Configured for Red Hat Enterprise Linux.
• Performance monitoring with SAR , Iostat , VMstat , MPstat and Other Tools.
• SENDMAIL configuration and administration, testing the mail server.
• Check System Performance using SVMON, VMTUNE.
• Managing NIS, NFS and Send mail Server .
• Disk Management on AIX using SMIT .
• Server architecture capable of transferring fragmented messages over TCP and UDP sockets in networking environment.
• Used packet sniffing and analyzing tool Wireshark/Ethereal, tcpdump and commands like netstat, traceroute and sock for deep inspection of protocols like TCP, UDP, SSL, SMTP, SNMP and other networking protocols.
• Experience using cloud providers & API's for Amazon(AWS) with Rightscale, Rackspace Cloud/Cloud Files, CloudSigma(EU) and IBM Cloud environments.
• Install and configure OVO agent in Linux RedHat 2.4 EL for system monitoring purpose.
• Performed automated installations of Operating System using JumpStart for Solaris and kickstart for Linux.
• Upgrade HBA Drivers and BIOS Firmware on IBM/HP Blade Servers .
• Created korn shell scripts to automate application monitoring and machine recycling saving time and reducing human errors.
• Debugged Perl and korn shell scripts.
• Experienced with C/C++, PHP, Server-Side JavaScript (Nodejs), Perl, Python & Bash Programming Languages Configuration and administration of Fiber card Adapter's and handling AIX part of SAN.
• Created backup and restored backups for the AIX servers.
• Discovery of more than 100 vulnerabilies with specific article and CVE Identification for each one in various software and hardware products
• Tuning of AIX for Oracle database and Web sphere environment.
• As a Solaris administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling.
• Worked with EMC PowerPath, SRDF and SAN Storage Related Issues.
• Installation and configured Solaris 10 with Zone configuration.
• Designed, implemented and still maintain a system for hosting Xen-based virtual servers.
• Upgrade HDLM, PowerPath and VxDMP on Solaris 8/10, RHEL 4/5, SUSE Linux 9/10, AIX 5.2/5.3/6.1 .
• Configured Boot from SAN for IBM and HP Blade Servers .
• Configured and Troubleshooting for SVM/LVM for Solaris and Red Hat Enterprise Linux .
• Built a production-quality Xen Dom0 using a RHEL4 userland.
• Implementation and maintenance of various virtualization technologies including (XEN, KVM, OpenVZ, Linux-vServers etc)
• Deployed and maintained servers (Red Hat Linux/CentOS) providing clustered key-value caching and text indexing.
• Deployed and maintained servers (Red Hat Linux/CentOS) providing hosted Web service solutions in a high-availability (Linux-HA/Heartbeat, Linux Virtual Server) environment.
• Has served as both a general computing platform and hosting/testbed for various development projects. Gallifrey currently runs CentOS, and its care, maintenance, and administration provides additional experience with UNIX machines.
• Created database application using PHP and MySQL as the database to monitor customer profiles and complaints.
• Design, develop and implement an automated Linux (Centos, Amazon) infrastructure using Puppet and move existing applications off windows seamlessly to it while aggressively growing.
• Implemented a complete central system management and monitoring system using Puppet and implemented cluster management using Cobbler used over multiple sites.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.
• Involved in server sizing and identifying, recommending optimal server hardware based on user requirements.
• Performance Tuning on a daily basis for preventing issues and providing capacity planning using MySQL Enterprise Monitor.
• Installation and configuration of VERITAS Volume Manager, LVM, VERITAS File System and VERITAS Cluster Server.
• Installation and configuration of HP-UX Servers thru ignite server, patch depot management for ignite server.
• Admirable experience within a large, Windows & Linux-based data center environment.
• Built main application Python leveraging technologies.
• Monoglot software maintenance of various internal software in python/php/perl.
• Developed and maintained software in Python for embedded Linux-based sensors running unattended.
• Installation and configuration of RedHat, VERITAS Volume Manager.
• Providing day-to-day user administration like adding/deleting users and managing user’s queries. Shell programming for routine administration tasks. Analyzing & monitoring system performance through various system tools such as netstat, iostat.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.
• Building, Installing and configuring VERITAS Cluster Server. Installed the Operating System on Solaris and Linux servers and blades over the network.
• Creation of standalone, browser based and command line, Perl utilities that run on windows and Linux.
• Built servers according to standards specified as per individual applications.
• Built virtualized Linux servers on ESX and blade servers to host multiple applications on same chassis across different server hosts.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks.
• Set up Sun servers for SAN-through-FCP boot as against booting from internal hard disks.
• Configured Sun servers M4000 and M5000 for operational readiness upon OS installation.
• Set up Linux servers for LAMP implementations and readiness.
• Created File systems from local storage as well as NFS partitions for application portability.
• Applied patches and packages on Linux servers using rpm RedHat Package Manager and yum tools.
• Ensured automatic startup of different services by using chkconfig.
• Configured Opsware on the servers for event tracking.
• Implemented virtual, integrated, management and proxy IPs on the machines to serve different purposes.
• Used Infoblox methods for assigning IP addresses.
• Made kernel changes to improve system data throughput.
• Installed and configured Apache, MySQL and PHP products on the Linux servers.
• Creation and scheduling of Cron Jobs such as for Backup, System Monitoring and removal of unnecessary files.
• Performed automated installations of Operating System using Jumpstart for Solaris and kickstart for Linux.
• Develop, Maintain, Update various script for services (start, stop, restart, recycle and cron jobs) UNIX based korn shell, bash.
• Updated & Running the various source codes for migration & updating follow-up the release management.
• Configured NIS Master, Slave servers and NIS clients.
• Engaging and working with different vendors to determine problem resolution and root cause of hardware problems.

Environment: Solaris 8,9,10, RHEL4/5/6, HP-UX 11.x, AIX, Sun M4K, M5K, M8k, T4xxx/ T5xxx servers, HP Blade Servers C7000.

Confidential, Houston, TX

Sr. Linux / Unix Administrator

Responsibilities:

• Worked as a part of migration team & migrated approx 750 Linux Servers in DC to DC migration.
• All migrations are done using System Imager.
• Design and implement data storage, schema and partition system as appropriate to Hadoop and related technologies like Hbase, Hive and Pig.
• Installed, configured and troubleshoot DNS, DHCP, Apache and MySQL and send mail on Red Hat Enterprise Linux.
• Diagnosed and resolved problems associated with DNS, DHCP, VPN, NFS and Apache.
• Developed stored procedures, triggers in MySQL for lowering traffic between servers & clients.
• Performed MySQL Replication setup and administration on Master-Slave and Master-Master.
• Installed, configured and administrated a multiple number of virtualization environments which includes LDOM, Zone and Hardware Domain etc.
• Created korn shell scripts to page support personnel during business hours to reduce notification time of excess CPU usage reducing notification time from over 1 hour down to 5 minutes. The end result was far less down time for a multimillion dollar, real-time trading system and provided better capacity planning.
• Updated korn shell script that improved nightly processing of updating accounts to use less disk space, improve error reporting, and improve the system performance by using multiply processes. Reports ran in one sixth of the original time and no longer caused the machine to run out of disk space.
• Maintained the data center equipment and software and performed regular troubleshoot on the process.
• Scale NetBackup performance by using Symantec Opscenter.
• Net backup NDMP backup configuration on EMC VNX Storage & Netapp.
• Developed and Operationally managed all Databases like Oracle, SQL Server, Sybase, UDB, DB2, Teradata.
• Worked in migration of data from EMC to NetApp storage.
• Worked on setting up clones of Oracle DB using EMC Clarrion and VMAX.
• Working on EMC RecoverPoint to check data replication to DR site.
• Customizing Nagios to fit OWM specific (Infra & Apps) needs.
• Worked on Initial configuration for Oracle RAC servers.
• Responsible for Installation, troubleshooting & configuration of Redhat Satellite Servers.
• Configured Redhat Satellite Server for upgrading and patching of all Linux Servers in the network.
• Organized and implemented rollout for project which involves upgrade of servers using Red Hat Satellite Server.
• Maintained the data center infrastructure in accordance to the specifications and provided the necessary hardware and software.
• Responsible for transitioning systems from Development & QA test environment to a full production environment.
• File System & volume group creation & Disk Management using Veritas Volume Manager & LVM.
• Veritas Cluster Server Configuration & Installation.
• Performed on-line disk replacement and volume group restoration.
• Automated Installation using kickstart on Red Hat Linux.
• Worked on HP Blade Servers & HP DL Series Server for Linux installation & Support.
• Apache Web Server & LAMP Server Installation, Configuration & Support.
• Performance analysis using Glance, sar, netstat & top.
• Inter-Networking with DNS, NIS, NFS, SSH.
• Kernel parameter tuning, patch installation & removal.
• Troubleshoot system problems & Supported 24/7 high availability production servers.
• Participation in Change Management & change control activities, Involved in Memory sizing of different applications.

Confidential, Lakewood, CO

Sr. System Administrator

Responsiblities:

• Installation, Configuration & Upgrade of Solaris, Linux, AIX and HP-UX.
• Configuring NFS, NIS, NIS+ and DNS.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Managed resources for zones using Solaris 10 container technology.
• Created ZFS file system.
• Used Solaris Live Upgrade to upgrade operating system from Solaris 8/9 to Solaris 10.
• Experienced with the installation, configuration and volume/File system management using Veritas Volume Manager, Logical Volume Manager (LVM) and Solstice Disk Suite (Solaris Volume Manager) .
• Primarily responsible for building Sun servers, monitoring tool and technical documentation.
• Worked in regulatory compliance environment (ISO/QMS). Trained on how to work on Request for Services (RFS), and Change controlled system (HP Open View Service Center 6.2).
• Worked on existing infrastructure tool: Net Connect for Solaris hardware monitor, HP OVO for file system monitor and Exceed for x-window communication.
• Developed Perl scripts to automate frequent reports for the users.
• Worked on Monitoring tool (SunMC 4.0) set-up. Designed and built master server for SunMC as well as worked for adding agents. Migrated Net Connect to SunMC for Solaris hardware monitoring. Wrote all server installation and agent addition procedure documents for SunMC and published in FedEx PGH Wiki site.
• Worked on patching for Net Connect application (NC 3.2.4), Sun OS (Kernel: 13 ) and Sun firmware patching (13 ). And also published how to do documents for Kernel/Firmware patching.
• Worked on Jumpstart server set-up with latest patches, packages, FedEx customizations as well as included security measure components in jumpstart server. Worked in HA environments.
• Built server from scratch for Netbackup Master and Media servers using Jumpstart. Worked on pre/post Sun OS installation as well as FedEx customized application installation.
• Worked on user/group ID add, modify and remove and password change for root and console.
• Worked with FedEx vendors for their hardware as well as software issue (NC3 script, srsproxy config: CST for Load average) regarding performance and defects and replaced error prone hardware components and also eliminated software issue by adding/removing packages and patches. Also informed all team members for EOL/SLA for support service agreements.
• Worked on Linux and Window virtualization using VMWare. VMware implemented server (ESX server: LINUX) fxspd801 (One of the FedEx LINUX server) on Sun Fire X4150. Worked on Solaris OS upgrade from Solaris 8 to Solaris 10 and release upgrade of Sol10 06/06 to Sol10 11/06. Created iso image for different release of Solaris and also Linux
• Extensively worked on security hardening. Detected security vulnerable components then remediated FedEx infoSec security flags for Solaris.
• Worked on trusted relationship (ssh) between Solaris servers first then other flavor of UNIX.
• Wrote script for first finding Net Connect application installed nodes for Solaris8 and Solaris10 then removing corresponding version of Net Connect installation from the server then finally do auto cron restart. Script was scheduled to execute only one time in off hours.
• Built master/replica (Client) NIS+ server from the scratch to fix mountable NFS share security vulnerability for AIX, HP-UX, LINUX and Solaris. Also wrote documents for how to build and implement net groups that can work parallel to DNS with various OS flavors (AIX, HP-UX and LINUX)
• Worked and wrote how to create ALOM CMT compatibility shell published in PGH Wiki site.
• Worked on fixing Sun Bugs "todm5819p rmc" (Real Time Clock issue), Unknown status of Sensor (Fan, Tmp, Current, Voltage, LEDs), channel0: chan-read - failed for istate3 etc. by applying OS/Hardware/PROM patch and also modifying system (workaround).
• Working for XVM hypervisor implementation.
• Worked for LUN, Fiber Cable and HBA’s configuration.
• Installation and configuration of AIX 5.1 and Red Hat Linux.
• Extracted, implemented and investigated truss output, explorer output, iostat -En, prtdiag -v, cediag (Sun's Enhanced Memory DIMM Replacement Policy) memory analysis tool, Crash Analysis Tool (4.1) when alerted from the sick node.
• Interfaced with Oracle database, Storage/SAN group, Infrastructure planning and budgeting, Network group, Desktop help desk, FedEx ISO/QMS, IT InfoSec Security and Web Logic/MQ Series application support team along with logging call with remote FedEx vendors.

Environment: Solaris 10/8/7, Sunblade 150, E450, F280R, E220R, T2000, Sunfire 480r, SunFire

Confidential

LINUX/UNIX Administrator

Responsibilities:

• Infrastructure planning, development and management, System Management (Hardware /Software), Vendor Management, Cost Benefit, Budgeting and (Lifecycle of implementation).
• Work on development, staging, production and testing environment on several City government projects (311, ACRIS, NYCHA, Portal, DATASHARE, GEO, and GIS etc).
• Installation and configuration Solaris 10 with creation of zones, svcadm-service Mgmt facility.
• Remotely as well as onsite 24x7 manage several servers for performance, uptime, capacity, response time, file system, I/O, disk space, kernel, memory, health check and also analyze incident/defect. Along with participated in emergency bridge call.
• Server virtualization Solaris 10: soft partitioning, Zone/ZFS creation and mounting.
• Follow up change management procedure, solve Netcool generated tickets and help desk tickets (Remedy tickets).
• Primarily working on Solaris 8/9/10 servers, SunMC, Netcool and Remedy interface and solving any issue appear in the execution of the process.
• Installation and configuration of VERITAS Volume Manager, LVM, VERITAS File System and VERITAS Cluster Server.
• Work extensively on HA/Disk Volume Management with VERITAS Volume Manager/ SVM and VCS.
• Worked on data replication: suspend/break/re-enable.
• Worked on File Sharing Protocol, Data Security, File management, Connect: Direct, SFTP and FTP.
• Creating user, groups, file system as request coming from different Government projects.
• Working on web server (iPlanet) redirect and SunMC installation as well as configuration.
• Working to upgrade SunMC for all DoITT Solaris UNIX OPS projects.
• Worked on to understand all UNIX components of ACRIS and migrated from Bearing Point environment to DOITT (Department Of Information and Telecommunication Technology) environment.
• Analyzed hardware and software implemented by ACRIS projects (Solaris, Linux, SAN and VERITAS Net-Backup) technical documentation extensively to migrate ACRIS project from third party (Bearing Point) to DoITT environment.
• Worked on ACRIS UNIX OPS Run Book and published on DOITT UNIX shared Services.
• Worked on script based file monitoring/NAGIOS and implemented Expect Script for user creation/modification as well as in data push in different server from centralized server.
• Worked on migration of script based file system monitoring /NAGIOS to SunMC.
• Extensively using Remedy to create Change Request (CR) and worked on CMR and followed proper process to validate and close CR.
• Worked on cron jobs for root, Pandora and Oracle accounts.
• Trouble shoots day to day issues on UNIX OPS system and user problems.
• Planning and implementing Disaster Recovery (DR) sites from the scratch.
• Worked on DR (Fail over/Fail back) from primary Data Center to secondary Data Center (DR site).
• Supported 24/7 highly available critical system.
• Involved in on-call pager rotation for production support.
• Interacted with vendors for hardware and software support.
• Troubleshooting Sun issues, logging call with vendors. Created Service Request (SR) with SUN.
• Interacting with various teams such Oracle database, Critical infrastructure, UNIX architecture, Wintel, IT security, Network/application support outside vendor (Bearing Point).
• Troubleshooting hardware issue which interface with SunMC, logging call with vendors.
• Demonstrated skill in supporting end users and proven ability to plan, organize and work as a member of a technical project team, both in small groups as well as large government groups.

Environment: Solaris 10/9/8, AIX 4.3, 5.1/5.3L, Sun E10K/15K/ F25k, Sun Enterprise 420R/280R/250/SSP Servers, Sun SPARC Enterprise T5220, Netra T5220, T1000, T2000 NAGIOS, SunMC 3.5/4.0, Sun StorADE 6130, VERITAS Volume Manager 3.2/4.1, VERITAS Net backup, VERITAS Cluster Server, Cisco fiber switch, SAN, Hitachi, DLT tapes, Oracle 8.1.7/10g, FileNet 3.6, Expect, Sendmail, Secure CRT, Cyclades etc.