SUMMARY

• Linux/Unix Administrator with 5 years of IT experience specialized in Application Support on Redhat - Linux, CentOS, Solaris, IBM-AIX. and Windows environments.
• Involved in installation, configuration, upgrading, patching and administration of Linux, UNIX and Windows Servers.
• Knowledge in Logical Volume Management on Linux with LVM Knowledgeable in HTTP, HTTPS, FTP, SFTP, DHCP, DNS, SNMP TCP/IP, UDP, ICMP, VPN, POP3 protocols.
• Knowledge in setting up SSH, SCP, SFTP connectivity between UNIX hosts.
• Knowledge in DNS, NIS, NFS, FTP, NIS, Samba Server, LDAP, remote access, security management, and system troubleshooting skills.
• Troubleshooting and packet capture with Net scout probes, Sniffer Pro, and TCPdump. Use of network monitoring tools including Cisco Works and Wire shark/Ethereal.
• Hands on experience on TCP/IP packets doing packet analyzing using snoop.
• Batch scheduling, batch scripting, nightly backups and network troubleshooting.
• Have knowledge with Version Control Configuration Management Tools like Clear case, SVN, Clear quest, Remedy and Puppet, GIT.
• Implement best practices and maintain Source Code repository infrastructure (Using GIT).
• Experience in writing Scripts in Bash for performing automation of various tasks.
• Experience in Configuring JVM parameters, specifying GC options, Optimizing the resource usage and tuning Web Logic application server.
• Installed/ upgraded patches, firmware, MP, GSP, BIOS and security (Kernel) patches for all HW & OS's in installed infrastructure.
• Experience in writing UNIX Shell Scripts using commands like awk, sed, tcsh, bash, Ksh and Perl to automate system admin jobs.
• Performed backend development using open source toolset (PHP, MySQL, Apache, Linux and others (i.e. LAMP).
• Maintaining reliable backups of corporate data including email communications for disaster recovery and backup verification.

TECHNICAL SKILLS

Operating Systems: Solaris 8, 9, 10, 11& open Solaris, RHEL 3, 4, 5 & 6 CentOS 5, Fedora, Open SUSE 10.x/11.x, AIX 5.1/5.2/5.3,Windows 7,8,9,10.

Hardware: Sun SPARC Enterprise Servers (M Series, T Series - M5K, T5-4, T7, SuperCluster (T5 full rack), Sun Fire Servers (V880, V490, V480, V245, V240), HP Proliant DL 300/500 series, IBM x3650, HP9000 series, IBM P Series, Sun StorEdge T3/T4 arrays (6120, 2540), Overland REO 8000, Quantum Scalar 50 LTO4, IBM ADIC Scalar 24 LTO3, 8mm SDLT Tape Libraries, NetApp, Dell Power Edge, EMC CLARiiON (CX600, CX700), etc.

Languages: Java Script, UNIX Shell Scripts & PERL Script

Networks: DNS, DNSSEC, BIND, DHCP, NFS, NIS, LDAP, NAS, and SAN

Databases: Oracle 10g & 11g, Oracle RAC Sybase 12 & 15.

Protocols: TCP/IP, SFTP, SSH, SMTP, HTTP, RIP, IGRP, OSPF

Web & App. Servers: IBMIHS, Apache2, LAMP (Linux, Apache, MySQL, PHP) Stack, BEA Web Logic 8.1/9.2/10.x, Web Sphere 5.x/6.0.x/6.1.x/6.2

PROFESSIONAL EXPERIENCE

Confidential, Santa Clara, CA

Linux Administrator

Responsibilities:

• Work on monitoring, configuration, and management of information technologies, troubleshooting medium to large-scale, multi-site, enterprise environments.
• Installation and Configuration of Linux (RHEL 5,6,7) servers.
• Korn, Perl, Shell scripting, file-system management and daily administrative tasks of Unix Administrator
• Performed cross platform audits of Active Directory (AD) objects and user permissions
• BMC Remedy experience with primary proficiency in installing, administering of multipleremedy AR and ITSM versions 6.3, 7.1, 7.5, 7.6.x, BMC ProactiveNetPerformance Management 8.5 (BPPM) and databases in Solaris, Unixand Windows Operating systems
• Developed organizational units in Active Directory (AD) and managed user security with group policies. worked on BMC Remedy AR System out of box products and developing the customizedapplications.
• Patch and updated Application servers - Apache, TomCAT and LAMP
• Managed Group Policy Objects (GPOs) throughout the Active Directory (AD) enterprise
• System Software installation and configuration of NFS shares, Auto-Mounter, DHCP and LDAP.
• Developed a multithreaded cache offline program in C++, supporting various user interfaces to deliver/process data for scalable, low latency applications.
• Production Support & Systems engineering duties related to Redhat system administration DNS, DHCP, NFS, NIS, LDAP, user account maintenance, backup & recovery, Auto-mounting, Licence Management, Printer configuration.
• Configure development and production Linux web servers with LAMP (Linux, Apache, MySQL, PHP) stack as well as additional services such as DNS
• Oracle Enterprise Manager OPS center 12.3 to monitor the assets.
• Manage disk storage using ZFS
• EMC Storage Area Network (SAN), NAS file systems using NFS
• Prepare SOP’S for Application Management, Technical Management, IT operations Management, Access Management, Request fulfillment Management, Self-service Management.
• Prepare service definition documents for Service Desk Management, Event management, Incident Management, Problem Management, System Decommissioning Management.

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

Confidential, Sacramento, CA

Linux Administrator

Responsibilities:

• Installing, Configuring and Maintaining Solaris 10/11, Apache, Red Hat Enterprise Linux 5, 6, 7 servers.
• Data Center migration, and consolidation - Building new servers in RHEL (Linux 5.x, 6.x) and Solaris 10, (11) and coming up with data migration strategies
• Lead a major datacenter migration and consolidation project in our production datacenters and DR sites.
• Analyzed and fixed the data discrepancies between various systems and identified bad data caused due to the data migration from various legacy systems.
• Involved in conversion/migration of database from Access, SQL Server, DB2, flat files to Oracle data warehouse.
• Modified C++ programs to support compliance rule automation for many compliance rules for various client accounts for pre trade and post trade compliance purposes and managed leverage using many metrics like industry exposure, security type, long or short positions, currency etc.
• Established OpenStack project Infrastructure Program and led the project.
• Worked for virtualization Infrastructure Management, to install virtual servers like LDOMs on M-Series.
• LVM experience with LINUX and SVM, ZFS with Solaris, Veritas Volume Manager and Clusters
• Troubleshooting problems with hardware and operating systems on multiple platforms working with multiple vendors to repair.
• Installing and configuring VCS, Oracle RAC.
• Security audits and remediation - PCI, SAS70, SOX, HIPAA, DHS standards -
• Applying security patches
• Applying configuration changes (e.g disable SSLv2, rlogins, hash checks, etc)
• Working with CVEs for finding appropriate solutions on Linux, Solaris and AIX
• Upgrading Solaris 8 to Solaris 10 using live upgrade.
• Built a Linux kickstart server on x86 machines, deployment of HP Blade server running RHEL 5 using VMware ESX
• Working in a LAMP (Linux, Apache, My SQL, PHP) environment for application monitoring.
• Configuration of Apache, Tomcat web servers and LAMP Stacks
• Used Veritas File Systems, ZFS, ZPool, SVM, LVM, etc to manage EMC and Hitachi SAN storage.
• Installed and configured Oracle VM for SPARC (LDOMs) and Solaris zones & containers.
• Managing E12k/E25k, and the latest hardware including T3-2, T4-x, M4000/M5000, T2000, T5140, and T5240.
• Generating the Revenue of the products using the Software as a Service (Saas) in enivornment.
• Strategize with the outside sales team to architect solutions utilizing the QT framework.
• Utilized STL and C++ algorithms to achieve optimal design efficiency
• Installed packages using YUM and Red hat Package Manager ( RPM) on various servers.
• Day to day resolution onLinuxbased issued though SMS ticketing system in compliance to SLA cycles.
• Worked with Red Hat Satellite Server, which is used to push changes across various servers simultaneously.

Environment: Redhat Enterprise Linux 4.x, SUSE Enterprise Linux, YUM, NIS, DHCP and DNS, VERITAS, VMWARE ESX/ESXi 3.5/4.x/5.x, VMware vSphere, Vcenter 4/5, VMotion, HA, templates, snapshots, Hyper-V servers, SAN, NAS, MySQL, apache, ftp, ssh, Apache, Tomcat, Web sphere.

Confidential, Indianapolis, IN

Linux Administrator

Responsibilities:

• Created user roles and groups for securing the resources using local operating System authentication.
• Handled tasks like managing User Accounts and Groups, managing Disks and File systems NFS, SVM.
• Configuring & monitoring DHCP server. Maintained LVM, VxVM
• Taking backup using tar and recovering during the data loss. Experience in writing bash scripts for job automation.
• Configuring printers to the Solaris and Linux servers and installing third party software's.
• Manage system installation, troubleshooting, maintenance, performance tuning, managing storage resources, network configuration to fit application and database requirements.
• Performed regular installation of patches using RPM and YUM.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Installed/Configured the WebSphere server, JBoss application server, WebLogic server
• Managed tuning and performance of high profile applications (PeopleSoft, SAP) running on them.
• Responsible for daily system administration tasks in heterogeneous Linux/Unix environments such as user/ group management, applying patches, disk management, job scheduling and packages installation (using RPM and YUM) on Linux/Unix Environment
• Created and configured volume groups and logical volumes extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Maintain Zabbix monitoring solution for multiple internal and external customers
• Software package and patch administration, involving adding and removing software packages and updating patches.

Environment: Redhat Enterprise Linux 4.x, SUSE Enterprise Linux, YUM, NIS, DHCP and DNS, VERITAS, VMWARE ESX/ESXi 3.5/4.x/5.x, VMware vSphere

Confidential

Linux Administrator

Responsibilities:

• Installed configured and built servers using Jumpstart and Flar Images (Servers included v240, V440, V880, T2000,T5240). Provided support to mission critical applications spread over 2800 servers.
• Providing internal LAN support for a user network. Network administration using Active Directory managing group policies and users. Remote troubleshooting for client utilizing RDP terminal services
• Configured Zones and LDOMs and containers for Solaris 10.
• Installed and configured Oracle VM virtual Box Manager and Hyper-V. Windows server 2012 r2 Administered logon accounts and profiles using Ac.
• Installed and configured Oracle VM virtual Box Manager and Hyper-V. Windows server 2012 r2 Administered logon accounts and profiles using Active Directory, Managed DHCP\DNS and Group Policies (GPOs) for the sit
• Designed, implemented & maintained multi node Veritas Cluster.
• Prepared server availability report for the management.
• Planned & Implemented Patch and Packages installations, quarterly patching of servers.
• Upgraded Solaris OS (Live upgrade from Solaris 9 to Solaris 10).
• Implemented Root Mirroring for systems using VxVm (Veritas Volume Manager) and Solstice Disk Suite.
• Upgraded Veritas Volume Manager from 3.x to 5.x
• Supported databases like Oracle & Web servers like LAMP - Apache, Tomcat & other proprietary applications.
• Responsible for the migration of physical systems (Domain Controllers/DNS, MSMQ, Dev, QA and Production environments) to AWS. This responsibility also includes ensuring PCI compliance, High Availability and management of multiple Systems Engineers across the USA, and ensuring more than 1.5M customers are being delivered the best experience and solutions possible 24 hours a day
• Performance troubleshooting on day to day basis
• Implementation of PCI security standards for SAS70 and internal IT audits across UNIX shop comprising of AIX (5.3, 6.1), Solaris ( 9, and 10) and RHEL (4, 5).
• Used Clearcase to support Software Configuration Management.
• Built a Linux kickstart server on x86 machines, deployment of HP Blade server running RHEL 5 using VMware.

Environment: RedHat Linux, SuSE, Solaris, UNIX, LVM Jenkins, GIT, ANT Scripts, ESX, Korn shell, Bash