SUMMARY

• Fourteen years of experience working as UNIX/Linux Administrator supporting 24x7 Service level requirements with financial services companies at American Express, Wells Fargo, PIMCO and Confidential .
• Sun Solaris installation and upgrade experience on UNIX flavored servers/desktop.
• Installation (Jumpstart) and Administration of Solaris 9, 10 Operating System on SPARC and X86 architecture.
• Production deployment experience with TCP, NTP, SNMP, SMTP, ARP, HTTP, BIND, SSH, SSL using Red Hat Enterprise.
• Installation and Administration of WebLogic and deployment of .war and .ear files.
• VERITAS Volume Manager / VERITAS Clustering Software.
• Linux Cluster on CentOS and Red Hat Enterprise Linux
• Experience with SAN and UNIX virtualization Solaris 10 (ZONES).
• Managed SAN devices including Clariion, Symmetrix, and VMAX.
• Managing Processes, troubleshooting, configuring network services, Architect, Build and Support Solaris/Red Hat Linux Enterprise Servers running on Intel hardware.
• Working Experience with RHEL - 3.0/4.0/5.0 and 6.0.
• Experience with Linux automated installation with Kickstart and PXE method on Red Hat Enterprise Server/Advance Server.
• Good understanding of TCP/IP protocols and services like DNS, HTTP, LDAP, Ipfilters SAMBA etc.
• Linux/Solaris Virtual Machine installation experience on VMware workstation.
• Working experience on RAID, LVM, Sendmail, SMTP, POP, TCP WRAPPER.
• Monitoring tools experience on Nagios, Sitescope, and BMC Monitoring.
• Experience of change Control and Root cause Analysis (RCA).
• Using HP insight Manager on SNMP protocol.
• Experience with Shell scripting (BASH) and PERL.
• Red Hat Package Manager/Yum experience on Red Hat Linux ES/AS.
• SSL Configuration for Apache Web Server and various customer facing applications.
• Implementation of SSH protocol on Solaris /Linux and OpenSSH.
• Configuration Management tools - Chef, puppet.
• Open Source Linux Kernel customization experience & strong understanding of File system on UNIX/Solaris/Linux OS.
• ESX 4.0 server implementation and configuring and creating the images to automate the installation.

TECHNICAL SKILLS

SkillsOperating Systems: Sun Solaris 9/10/11, Red Hat 9, SUSE Linux Enterprise Server 11, Red Hat Enterprise Linux - 3/4/5/6/7, AIX 5.2/3, MS DOS, Win 9.x/XP/2000

Packages Known: MS Office, Star Office, Visio, Putty, SSH Secure Shell Client

Languages/Scripting: VB, C, Bash, PERL.

DBMS: MS Access

RDBMS: Oracle 8i

Web Technologies: HTML

Unix Tools: RegEX, Sed, Awk

Systems: Systems analysis and Design, Information System’s for Management Support, Structured System’s analysis and design

Hardware: Pentium X86/64, Ultra Sparc 5/10 Sun Solaris Server, Compaq Proliant (DL 580/DL 380/DL 580/6500), HP, dual processor Server, Compaq Fiber Channel Array, IBM, xSeries (346/366), IBM BladeCenter, HS20, BladeCenter JS21/HS21, BladeCenter Chassis, Dell Power Edge Servers, (1850/2850/1950/2950/6850/2800 ), Sun Enterprise M5000/4000, Sun SPARC T2000/T5220/T5440, Sun-Fire-V890/v100, E2900, v440, 490.

PROFESSIONAL EXPERIENCE

Confidential, Irvine, CA

Sr.UNIX/LINUX CONSULTANT

Responsibilities:

• Unix Patching Team Lead for Confidential of companies.
• Production on call support 24/7.
• RHEL- 7, 6, 5, Solaris 10 and 11 Server build and Administration.
• Performs routine audits of systems and software and performs backups.
• Applies operating system updates, patches, and configuration changes.
• Installs and configures new hardware and software.
• Various software tools like - CyberArk, Vsphere Client, Red Hat Satellite, Chef, puppet, Veritas Enterprise Administrator, Veritas Cluster Server (Java Console), Avocent DS View, SharePoint etc.
• Responsible for adding, removing, or updating user account information, and resetting passwords, security and documenting the configuration of the system.
• Clustering on Red Hat Enterprise Linux 6.5 and CentOS distribution.
• NFS server/client issues and handling various requests (used a lot in CG)
• Troubleshoot any reported problems and be responsible for system performance tuning.
• Pre-patching/post patching activities for Solaris 10 OS and live upgrade.
• RHEL 5/6 System building right from hardware acquisition till OS pre/post install.
• Red Hat satellite server 5.5 administration including patching.
• Change management, remedy ticketing system. Working on the incidents/tasks/CRQ.
• VMware ESX 5.0, HP iLO 5.0 Administration including RAID configuration and OS installation.
• Shell/Perl scripting, writing short scripts on the fly to easy the system administration tasks.
• Vast experience working on CRQ Management - Approx. 300 per year.
• Oracle Solaris 10 Live upgrades Patching Quarterly.
• Excellent troubleshooting skills to address the pre and post patching related issues.

PIMCO, Newport Beach, CA

Sr. UNIX/LINUX CONSULTANT.

• RHEL-6, Solaris 10, SUSE Enterprise Linux 11 Server build and Administration.
• Autosys server components implementation with administration and helping the teams to configure their project and the production job cycles on the Autosys.
• Training the team members for using various application tools like Autosys WCC/MQ Explorer.
• IBM MQ Administration. With architecting and design till launching in DEV/QA/PROD/DR environment.
• Axway Secure Transport architecture and design and installation/configuration and releasing the project in BETA/PROD and DR environment.
• Filesystem administration. File System (ext3, NFS) and raw device.
• Managing various day to day tasks with shell and Perl scripts.
• Open-source software installation (compile from source or RPMs).
• System Architecting and design for various UNIX projects.
• Implementation of Oracle Database firewall for SQL traffic monitoring of Oracle Database in POC and PROD environment using the SPAN port mirroring method.
• DL 380’s/580’s ILO management configuring/using various RAID levels and managing the volumes with RedHat Linux Volume manager.
• Tuning various kernel parameters required for the smooth function of the applications.
• Building, deploying, and maintaining compute farms.
• Interprosses communication. Monitoring tools, like sar, iostat, vmstat, top.
• Splunk monitoring tool. Performance tuning.
• High availability clustering experience (IBM MQ/Secure Transport/VCS)
• Linux Cluster Management on Red Hat Enterprise Linux 6
• Creation of file systems using ZFS and setup quotas in zpools, zpool mirroring, adding storage to the zpool, setting up devices in the zpool using RAID levels.
• Installation, configuration and troubleshooting of Veritas Cluster Server 6.0 for High Availability and configuring a fail over Cluster. Adding and removing nodes from a cluster configuration.
• Volume management using Veritas Storage Foundation 5.0, 6.0 which included the encapsulation, initialization, root disk mirroring, and export/import of disk groups.
• Building Solaris 10 and RHEL 6 servers with jumpstart and kickstart method on SPARC and Intel hardware for QA and Production servers.
• Experience in virtualization using VMware ESX 4.0, vSphere 4.0, Solaris zones and Xen Server.
• Applying Patch bundles and upgrading Solaris 10 and RHEL-6.
• 24/7 on call production support. Working experience on the production issues and severity 1 tickets through ticket management system.

Wells Fargo Bank - AZ

UNIX LINUX ENGINEER

• RedHat Enterprise Linux 4/5/6, Sun Solaris 10 X86, SPARC System Administration.
• System Admin Activities of Installing Network services, Making configuration changes and testing the changes.
• Deploying builds for applications & integrated utilities in the business.
• Responsible to test various protocols FTPS/SSH/PGP/HTTPS etc.
• Setting up CVS repository adding projects, check in, check out, Tagging etc..
• Troubleshooting Axway components for file transmissions & monitoring.
• Writing shell scripts for various bank business utilities to manage the process and business architecture.
• Working closely with QA Team & Development team for supporting infrastructure required for automating the release process.
• Managing various application services, file configuration, attributes changes.
• Handling of CVS client, WebLogic, Gateway Integrator, Axway Sentinel, Dashboard, enrollments, Ipswitch WS FTP Professional, VMware.
• Leading the meeting for final build deploy prior to the Production deploy.

American Express Company AZ

SOLARIS/LINUX SYSTEM ADMIN

• DC2015 data Center Migration activities.
• VERITAS Clustering Software, Volume Manager, Logical Volume Manager.
• Managing SAN devices including scanning, configuration & removal.
• Executing Change Management Requests (CMR’s)
• SMTP, NFS, LDAP, SAMBA, DNS protocols.
• EMC Clariion, Symmetrix, and VMAX.
• VSphere Client, ESX 4.0, Configuring Linux VM, Migrating, and Cloning.
• Application installation, troubleshooting, and FS Management.
• Linux Red Hat, Solaris 10, WebLogic, and WebSphere.
• Shell scripting, Perl, and regex.
• Red Hat Linux (VM) server building with version 5/6.

Harvard University - MA

SOLARIS/LINUX SYSTEM ADMIN

• Oracle Sun Solaris System Administration/Linux System Administration.
• Managing and resolving trouble tickets for UNIX/Linux system for various users.
• Managing multiple projects and day to day System Admin activities.
• Performing sweep activities on 150 + Linux and Solaris servers.
• Learn and enforce existing processes as quickly as possible
• Work closely with project managers to estimate engineering effort, project plans, and system design specs.
• System performance and bottleneck issues related to Operating Systems and applications.
• Deployment of SMTP server for corporate infrastructure - Dev/QA and Prod servers with SENDMAIL.
• Oracle WebLogic Application server Administration.
• Participated in technical reviews and updated infrastructure documentation.
• Work closely with the architecture team to provide input to new technology strategies.
• Responsible for infrastructure support for: Servers - Solaris on Sun, Linux on various servers, VSphere infrastructure client and Storage - EMC DMX, VMAX & Clarion.

Wells Fargo Bank – AZ

APPLICATION SYSTEM ENGINEER (UNIX/LINUX/AXWAY)

• Solaris and Red Hat Linux System Administration.
• Solaris Kernel Engineering tasks.
• VERITAS Clustering Software, Volume Manager, and console Manager (JAVA)
• Memory management Shared, Virtual, Fixed, I/O Analysis and bottlenecks.
• Solaris system performance analysis tools – SAR, Truss, sysdef, prstat, mdb etc.
• Application migration from Solaris to Red Hat Enterprise Linux 5.5.
• Red Hat Linux – Software deployments, rpm, yum, kickstart.
• WebLogic System Administration experience with strong diagnostic skills in TCP/IP stacks.
• Wireshark, Solaris (snoop), F5 BIG/IP, Linux (Tcpdump), OVO alarming, Encryption, SSL, SSH, MD5,
• Java Memory Management, Java Heap stack.
• Application Intercommunication to Kernel diagnostics.
• Process flow identification and Deployment of applications.
• Installation, configuration and management of Axway Product line components like Synchrony Gateway, Integrator, Passport, Sentinel, Composer, and Secure Relay.
• Open Source SSL and TLS, jar, tar, zip,
• Build Engineer experience with Mercury Quality Center for defects creation, tracking and resolving plus deploying the applications using Anthill Pro 3.8 and helping QA Team to validate those defects.
• Scripting Languages – BASH, PERL, SH.
• Application integration Transmission Protocol experience (troubleshooting)
• Knowledge of PKI, Digital Certificate Authentication, SSH Key Authentication, PGP Encryption
• Documentation Tools: Visio, SharePoint, Source Code Control: Tortoise CVS, Business Analysis.
• Monitoring Tools: Sitescope, Introscope, and General Nelson.
• Application performance, availability, configuration and troubleshooting.
• Customer Support, Executing CR's coordinating with various teams.
• Change Management, BMC remedy User Ticket Management, Problem Ticket, Work Request, Work Order.
• Performing Full Functional testing for file transmissions using various protocols like: FTP, FTPS, FTPw/PGP, SFTP, HTTPS, AS2, SWIFT.
• VMware workstation DEV Platform development from scratch with RHEL 5.4 and Oracle 10g.

American Express Company – AZ

UNIX/LINUX SYSTEM ADMINISTRATOR

• Automated installation of Solaris 10 with Jumpstart technology.
• VERITAS Clustering Software and Volume Manager.
• TCP, NTP, SNMP, SMTP, ARP, HTTP, BIND, SSH, SSL using Red Hat Enterprise.
• Administration of Solaris 9 & 10 on SPARC SUNW, Sun-Fire-V890, E2900 and X86.
• Verisign Certificate Installation and configuration on Apache/Tomcat.
• Managed Network services like NFS, HTTP, SAMBA, DNS etc.
• Involved in writing Bash and PERL shell scripts.
• Installation and configuration of RHEL 3/4/5 on Intel Platform.
• Administration of RHEL 4 and 5 on VMware Infrastructure.
• Supported the various applications like Hyperion, Clarity, New Scale (Service Catalogue Leader), Informatica, and Vontu.
• Automated Network installation of Red Hat Linux with Kickstart.
• Responsible for documentation for the processes followed.
• OS and Application Performance tuning and analysis.
• Installation of Apache 2.0, Tomcat 5.5, and configuration and troubleshooting.
• Citrix Meta Frame Presentation Server Client.
• BMC Monitoring configuring for UNIX and various applications.
• Supporting the Production Environment 24/7.
• Extensively worked on the IMR and CMR’s in PROD and QA and Dev Environment.
• Performed root cause analysis for any problems that occurred.
• Worked on INFOWEB (Change Management Request Tool) and Mercury Quality Center.
• Used the tools like Microsoft Project and VISIO for Architectural Diagrams and Designing.
• Familiarity with Java based applications, Apache Tomcat, and MySQL.
• Experience with UNIX Virtualization like Zones and VMware.
• Installation/Administration and supporting WebLogic/WebSphere Application servers.
• Installation of Netback up Client and Server on SUN and Red Hat OS.
• Installation of BMC patrol agent on RHEL Servers.
• Configuration of RAID and using Logical Volume Manager.
• Red Hat Linux Load balancing clustering experience.
• Experience in User and Group Management and permissions.
• Installation of firewall on Linux (Iptables) and Solaris (Ipf).
• Flexible access control techniques and tools such as Sudo.
• ILO for HP Proliant Servers. Involved monitoring systems on SNMP protocol with HP Insight Manager.
• Working experience with various vendors like SUN, Dell, Red Hat, Clarity. (CA).

Freescale Semiconductor Inc. – AZ

UNIX/LINUX SYSTEM ADMINISTRATOR

• Administration of Solaris 9 & 10 on SPARC SUNW, Sun-Fire-V890.
• Installation of Solaris OS on Intel and Sparc Hardware with Network Installation.
• Set up RSYNC server for backup activity on Solaris 10.
• Automation of FTP, RSYNC, SSH with shell Script.
• File system Access control and System Security.
• Setting up SSH login without password on Solaris and AIX.
• RHEL -4.0 setting up Kickstart installation server with HTTP, NFS, FTP Setup.
• Configuration of RAID and Logical Volume Manager.
• Installation of SAMP on Solaris 10.
• Scripting skills in Shell script Bash.
• Installation of applications and software from source code and Setting the environment variables in the System PATH.
• Installation of DataStage on Solaris 10.
• Solaris package Management and patch implementation.
• Understanding TCP/IP stack and OSI Layer Architecture.
• RHEL 5 Kickstart Server installation with File System Layout.
• Apache, Apache-tomcat Configuration and Administration on RHEL 4
• Autofs service Configuration with NFS SERVER Setup.
• Upgraded and recompiled the kernel and patched the Linux kernel.
• SELINUX configuration for NFS, Apache, and NIS.
• IPTABLES and TCP WRAPPERS implementation on Linux Security side.
• Performed SAMBA Server configuration on RHEL 5 with WINDOWS NT and managing SAMBA with SWAT (Graphical Interface).
• Managed the super daemon XINETD and the various services controlled by the daemon like RSYNC, TELNET, and VSFTPD.
• Managed Network files in SYSCONFIG directory for NIC speeds and for assigning Virtual IP addresses.
• Managed RHEL-4.0 including NFS v.4, Managing Newer Version of SAMBA 3.0, GCC (3.4), GENOME (2.8), MYSQL 4.0.
• Performed installation of various software with RPM utility, Building the packages from source with RPM build.
• System Security: IPtables, TCP WRAPPERS, File System Access Control and Role based access control in RHEL-4.0
• Tweaked various kernel parameters in sysctl.conf file in RHEL-4.0
• Performed installation of Linux, Solaris on VMWARE workstation.
• Supporting the production Environment on 24x7 basis and on call rotation.
• Sitescope Network monitoring Tool configuration.
• Installation and implementation of monitors for Oracle, Datastage, and Hyperion.
• Supported almost twenty users for various issues related to ongoing project.
• Involved writing start/stop scripts. Deploying ear/war/jar for WebLogic/WebSphere.
• Provided training to users on Process management and Network Troubleshooting.
• Apache 2.0 and Apache-Tomcat-5.5 Administration.
• Configured Sendmail with POP, SMTP and TLS encryption Technology.
• Performed troubleshooting of GNU Linux related Network Services.

Time Inc. – NY

UNIX/LINUX RED HAT SYSTEM ADMINISTRATOR

• Managed Sun Solaris 9/10 on Sparc as well as Intel Platform.
• Solaris Package and patch Administration.
• Performed user administration and worked with Solaris network environment.
• Disabled SSH1 protocol and implementing SSH2
• Managed Access control and System Messaging.
• Performed Solaris Security Administration.
• Built Solaris packages from Source.
• Configured various network services like HTTP, NFS, BIND, and NIS etc.
• Managed and installed RHEL 4/5 on Intel Platform.
• Performed troubleshooting of Layer 7 problems and issues.
• Managed Solaris File Systems and disks.
• Hardened Red Hat Enterprise Linux.
• Scanned of Red Hat Enterprise Linux 4.4 AS with Qualys Guard.
• Secured Linux kernel by correcting various Linux kernel 2.6.9.42
• Setting up Kickstart server for Red Hat Linux Installation through FTP, NFS, and HTTP.
• Used Hummingbird Connectivity Software for connecting data and applications.
• Tackled Linux kernel multiple security vulnerabilities which included patching the kernel.
• RPM Package installation/Upgrade/remove/Create
• Kickstart Server Configuration.
• Created user accounts and configured the user environment and bash configuration files.
• Used various run levels for system maintenance and troubleshoot.
• Set kernel configuration options and Compiled and installed a custom kernel.
• Performed troubleshooting of various network issues.
• Configured various network services such as Apache, Samba, NFS, Vsftpd.
• Implemented Iptables for the Linux UNIX network setup.
• Sun Java Run Time Environment GIF Images buffer overflow vulnerability.
• Yellow Dog Updater (YUM).
• Performed implementation of SELINUX policies for various applications and Network Services.

Dow Jones – NJ

UNIX SYSTEM ADMINISTRATOR

• Solaris OS Installation on SPARC and Intel Architecture.
• Solaris 9/10 Package Management and patch Implementation.
• Sun Solaris Installation & patching with Patch link.
• Solaris Kernel Tuning & Security updates experience.
• User Management and Support on Solaris OS.
• Performed troubleshooting various Solaris Networking issues related to FTP, NFS, NIS, HTTP, MySQL and RSYNC.
• Used Bash Shell for shell scripting.
• Understanding of Solaris Internals and Process Management.
• Performed installation of HTTP as a standalone Service on Solaris 10.
• Used Solaris Management Facilities for Service management.
• Performed installation and configuration of RHEL 4 AS/ES using Kickstart technology.
• Linux on Dell Power Edge, IBM Blade Server, OS Installation, Patching and Maintainer.
• Created Kick Start + HTTPD/ Jumpstart installation Server + NFS.
• Dell Open Manager and DRAC4/5 configuration experience.
• RAID and LVM configuration.
• Red Hat Satellite Server installation and configuration.
• HBA Emulex Card installation and configuration.
• SELinux, Firewall, FTP, and SSH Server Configuration.
• Kickstart Server Profile Creation.
• Red Hat Package (RPM) build and installation for 64/32 Bit OS.
• Performed Apache Web Server Installation, PHP, Tomcat and MySQL installs and configuration on Linux.
• Media Wiki installation and configuration for documents.
• Wrote Shell Scripts for system/application, Application monitoring, Data feeds files transfers & log file analysis.
• Tomcat Application Server Installation configuration on Solaris/Linux.

VenQorp. India Pune

UNIX/LINUX SYSTEM ADMINISTRATOR

• Performed installation and configuration of Red Hat Linux installation on Dell Servers.
• Performed Kickstart Server Configuration.
• Package installation on Sun Solaris.
• JDK/PERL and Apache Web Server installation on Sun Solaris/ Red hat Linux.
• Performed installation of Sun Solaris Server and upgrade.
• Configured basic networking and file system, system initialization, and packages.
• Used rescue environment for system recovery.
• Performed different approaches to multiple boot installations for Rawrite and FIPS.
• Created different kinds of user accounts and configured the user environment and bash configuration files.
• Performed installation of kernel sources and development tools needed in order to rebuild the Linux kernel.
• Implemented the following networking services Apache, Samba, NFS, and POP3/IMAP4 email, DNS, NIS and FTP.
• Working experience on Mail Server Sendmail based on Linux with TLS/ Encryption for outbound emails on SMTP.
• Configuration of sendmail mailserver with m4 macro, masquerading and relaying, antispam configuration control, SMTP Authentication, adding new mail filters, using mailertables, and mail submission program.
• Performed troubleshooting of above services and implemented access restrictions for the services.
• Handled HP-UX Servers at Client side.
• RPM Package installation/Upgrade/remove/Create.
• Worked with Window manager and Desktop environment choices available under Red Hat Linux.
• Worked with configuration issues - routing options, IP forwarding, and kernel configuration - associated with Red Hat Linux as a Router.
• Capable of using IP Tables / IP Chains Rule to implement basic fire walling policies and User private groups in Red Hat Linux.
• Used different run levels for system maintenance and troubleshooting.
• Performed configuration of Autofs service.
• Performed configuration of Apache Web servers, and virtual hosting.
• Configuration of Firewall rules using IP Tables.
• Performed troubleshooting Linux Server at Hosting facility.
• Attended Technical Meeting with Business Development Manager for assessing Clients requirement and proposing Solution.
• Assisted in preparation of Quotations with Technical Inputs.

Network Elements Technology. India Pune.

SOLARIS/LINUX SYSTEM ADMINISTRATOR

• Set up all Sun Solaris boxes.
• Deployed NFS environment for applications distribution, software development, and "auto home".
• Set up Internal web server for file sharing and automated reports.
• General networking - LAN & WAN: set up inter-office T1, and Internet T1/ISDN connectivity.
• Maintained internal DNS subdomain + mail server.
• SSH server Setup for Sun Solaris and Linux.
• Sun Solaris Jumpstart Server installation.
• Package Install/Upgrade/remove on Sun Solaris.
• Performed User management and Disk monitoring.
• Kept mission-critical warehouse application and database servers running (Solaris, ultra 1s).
• Installation and configuration of Red Hat Linux installation.
• Kickstart Server Configuration.
• Linux Server Installation and customizations at client side.
• Used rescue environment for system recovery.
• Performed installation of kernel sources and development tools needed in order to rebuild the Linux kernel.
• Implemented the following networking services Apache, Samba, NFS, basic send mail, POP3/IMAP4 email, DNS, NIS and ftp.
• Performed troubleshooting of above services and implementing access restrictions for the services.
• Worked with Window manager and Desktop environment choices available under Red Hat Linux.
• RPM Package installation/Upgrade/remove/Create.
• NIS concepts and components associated with NIS.
• Familiarity with configuration issues - routing options, IP forwarding, and kernel configuration - associated with Red Hat Linux as a Router.
• Capable of using IP Tables to implement basic fire walling policies and User private groups in Red Hat Linux.
• Used different run levels for system maintenance and troubleshooting.
• Performed configuration of Autofs service.