SUMMARY:

• Over 4years of experience specialized in System Administration working on Red hat Linux, Solaris, Suse Linux, AIX, Cent OS, OEL, Windows and implementation in infrastructure, deployment, testing, documentation, and maintenance of Client/Server, Web based applications in multi - tiered architecture, internet/intranet infrastructure and clustered environments.
• Experience in administering Solaris & Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris & Linux.
• Experience in Installing, upgrading and configuring Red Hat Linux 3.x, 4.x, 5.x using Kickstart Servers and Interactive Installation.
• Experience in Installing, upgrading and configuring SUN Solaris 2.6, 7, 8, 9, 10, 11 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience in MQ clustering, MQ/IIB HA (High Availability) setup. And creating MQ objects creation like Queues, Topic, Subscription, Channels, Remote Queue definition, CCDT & Bindings file generation etc.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
• Experience in installing, configuring and implementing the RAID technologies using various tools like VxVM and Solaris volume manager.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hat Linux.
• Extensive experience with XML and XML Schema and deep understanding of XML schema concepts and XPath.
• Experienced in backing up the IIB and QMGR configuration during version upgrades and restoring the backup post upgrade.
• Experience in setting up Tivoli Monitor alerts for IIB and MQ.
• Experience in writing UNIX/Linux Shell Scripts using commands like AWk, SED, TCSH, Bash, KSH and Perl to automate system admin jobs.
• Installation and upgradation of Packages and Patches configuration mgmt., version control, service pack. & reviewing connectivity issue regarding security problem.
• Highly experienced in installing, Upgrading, Migrating, Configuring and Troubleshooting IBM WebSphere Application Server 6.x/7.x/8.x/8.5.5, WebSphere MQ SeriesV7.0/V7.5/V8.0 and IIB V9.0/10.0 on AIX, Linux, HP-Unix, Sun Solaris and Windows Platforms
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, and postfix, send mail, ftp, remote access, security management and Security trouble shooting skills.
• Experience on Webservers such as I Planet Webserver 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x & Apache Server 1.x, 2.x and integrating them with WebLogic 10.x servers.
• Experience in administering VMware Infrastructure Client 3.5 and VSphere 4.0.
• Experience in Installation of Oracle and MYSQL.
• Experience writing shell scripts to automate the administrative tasks and management using cron and at.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Experience Sun Solaris 10 and 11(Creation of Zones, Service Management Facilities, Virtualization, and Container).
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Team player with good management, analytical, communication and interpersonal skills.

TECHNICAL SKILLS:

Operating Systems: RHEL 3/4/5/6, Solaris Release 2.11/2.10/2.9/2.8/2.7 , IBM-AIX 5.X, Windows 98, Windows 2000 and NT.

Hardware: HP ProLiant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500E10k, E15k, E25k, Sun Ultra s, V210, V280, V490, V880, V6800 SUN Ray (1g

Ultra: Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5.

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, Veritas NetBackup 6.0, MS-Office/MS-Project.

Web/ Application Server: Apache DB2, Oracle IBM WebSphere Application Server 8.5.x/8.x/7.x/6.x/5.x, IBM WebSphere MQ Servers, Tomcat Application servers, IIB Servers V9.0/10.0, WebSphere Portal Servers, J boss, Apache webservers V2.0.4.x, IBM Http Server 8.5.5/8.x/7.x/6.x/5.x, Sun Java 7.x/6.x/5.x Web Server.

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, net stat, NFS, NIS, nslookupRIP, OSPF, BGP, TCP/IP, and tcpdump.

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and Shell Programming, JSP, Jython

PROFESSIONAL EXPERIENCE:

Confidential, Richmond, VA

Linux Administrator

Responsibilities:

• Administration of RHEL and AS 5, 6, 7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installation, configuration, administration of Solaris 9, 10 on SPARC based servers using Jumpstart.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 5.5 and migrating servers between ESX hosts.
• Installing Red Hat Linux using kick start and applying security polices for hardening the server based on the company policies.
• Administration, package installation, configuration of Oracle Enterprise Linux 5.4.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling Cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked on Open stack (Havana) which includes installation, configuration, administration of Virtual Machines, creating security groups, tenants, adding resources.
• Worked and performed data - center operations including rack mounting, cabling.
• Installation of Solaris 9, 10 on Sun Fire and Enterprise server using Jumpstart, custom configuration like installing packages, configuring services.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Tech, non-tech refresh of Linux servers including new hardware, OS upgrade, application installation.
• Installing, configuring Redhat servers via Cobbler, automating scripts, tasks using Cobbler.
• Installation, configuration of MySQL 5.1 which includes creating database tables, updating table entries.
• Creating profiles, manifests for new servers, and pushing them to servers using puppet.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Worked on KVM, installing, configuring Linux VMs.
• Installing, configuring Jboss 4.3 on Linux, UNIX servers, integrating it with Apache server.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment.
• Installing and configuring Apache and supporting them on Linux production servers.
• Worked on E-commerce based application products related to internet marketing, credit card transactions, Inventory management.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc) and tuned I/O, memory, etc.
• Managing systems routine backup, scheduling jobs like disabling and enabling Cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Installation and configuration of VxVM 5.0 and creating disk groups, volumes, increasing volumes.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers).
• Experienced in Troubleshooting critical hardware and software issues and day-to-day user trouble tickets.
• Adding servers to the domain and monitoring them using spectrum, site scope, cacti.
• Developed automated processes that run daily to check disk usage and perform cleanup of file systems on UNIX environments using shell scripting and CRON.
• Installation, Maintenance, Administration and troubleshooting of Red Hat Enterprise Linux 5/6 and Solaris 9/10 systems.
• Performed automated installations of Operating System using kick start for Red Hat Enterprise Linux 5/6 and Jumpstart for Solaris 9/10 Linux.
• Responsible for design, development and day-to-day management of network services and capabilities, with Cisco and Palo Alto networking, VMware Virtualization, NetApp/Hitachi storage, Brocade SAN, Air Tight Wireless WLAN, Network Security, Exchange, AD and Windows.
• Nagios, Tivoli, SNMP, SPLUNK, XYMON.

Environment: Red-Hat Linux Enterprise servers (HP ProLiant DL 585, BL 465/485, ML Series, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Confidential, AZ

Websphere/MQ Administrator

Responsibilites:

• Installed, configured and maintained IBM WebSphere Application Server 6.x/7.x, IBM WebSphere MQSeries 5.x/6.x, IBM Http Server 1.3/2.0, Apache 2.x on heterogeneous platforms (AIX 5.3/Sun Solaris 8.5/Linux/Windows NT).
• Involved in migration from WAS 5.1.1 Network Deployment and Base to WAS 6.1 ND on AIX platform. Applied refresh packs, fix packs and cumulative fixes for WebSphere, IHS, IIS and plugins.
• Created DMGR, application server and custom profiles in Linux platform for dev, test, preprod and production and federated application server and custom profile to DMGR using addNode.sh command.
• Hands on experience in Migrating the existing configuration and applications of IBM WebSphere using WAS Pre Upgrade and WAS Post Upgrade tools on AIX.
• Applied Fix Packs for WebSphere Application Server 5.1/6.1 and hot fixes to various applications and multiple environments as per the change management system request to overcome the functionality and performance issues.
• Responsible for changing and migrating source code of high profile applications and deployment on WebSphere Application Server.
• Coordinated with IBM support by raising PMRs to resolve problems related to WebSphere Application Server and WebSphere MQ outages.
• Troubleshoot problems on the various environments involving the integrations of WebSphere, IBM Http server, I Planet Webservers, TAM and LDAP.
• Developed WS admin scripts using Jacl, Jython to automate WebSphere processes including start/stop, creating and configuring servers, JDBC and MQ resources, deploying applications on stand-alone and clustered environments
• Configured global security on WebSphere using IBM Directory Server and secure the admin console.
• Troubleshoot problem-tickets, worked with developers to identify the root cause and resolve the issue or propose a potential work around and successfully resolved LDAP, SiteMinder, WAS, MQ, code, and data issues.
• Implemented authentication and authorization permissions to web resources and Installed SSL s on the web servers using IKEYMAN. configuration file for virtual hosts for all sites.
• Managed the security and performance optimizations for EJB containers and web applications in IBM WebSphere, IBM HTTP Server and Apache web server.
• Configured enterprise applications and corrected performance problems by monitoring server availability and resource utilization analysis.
• Lead role in performance testing and tuning the applications performance emphasizing on JVM heap size, CPU utilization, JDBC connection Installed & Configured Apache web server v1.3/2.0.x on Sun E450 servers in Solaris environment and configured pools, Garbage Collector, Web container threads, Servlets performance, response time alerts and thresholds.
• Problem determination using local error logs and by running user traces and service traces.
• Assisted in several thread dumps and heap dumps analysis using IBM Thread analyzer and IBM Heap Analyzer.

Environment: IBM WebSphere App Server 6.1/5.1, IBM WebSphere MQSeries 5.0/6.1, IBM Http Server 1.3/2.0, WebSphere MQ, Hot Terminal, Apache, AIX, WSAD, RAD7, LDAP, Heap analyzer, IIS V7.x, Windows 2000, LDAP, EJB, JDK, J2EE, JNDI.

Confidential, New York, NY

Linux Administrator

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using Kick Start server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers with Zones and containers with Sun ZFS.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• 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.
• Implemented SUDO, SSH, security tools and implemented SOX (Sarbanes Oxley) security compliance.
• 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.
• Created Zettabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Installation and configuration Veritas NetBackup on Sun Severs and Backup using Veritas Net Backup.
• 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 Solaris & Linux boxes as part maintenance.
• Worked with IT teams, users and other managers in helping build and implement systems and standards.
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance, and performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, 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

Websphere/MQ Administrator

Responsibilities:

• Responsible for Installation, Configuration and Maintenance of WebSphere Application Server in a Network Deployment Environment on AIX consisting of 8 clustered nodes to achieve fail-over and load balancing - used Admin Console and WS ADMIN scripting.
• Installed, configured and integrated Web Servers (OBJ.Conf, Magnus.Conf, plugin file), Siteminder (domains, policies, realms, rules) and Ldap user directory with WAS.
• Supporting, monitoring all Applications at Development, QA and Production phases.
• Deploying application in WAS on AIX using Console and automated JACL scripts after getting the Release EAR, WAR, and JAR files from Clear case.
• Upgraded Applications with various patch files (JSPs, Class files, changing various properties and property files and other configurations).
• Hands on experience in defining synchronized and persistent IBM MQSeries Queue/Topic Connection Factories, Queue/Topic Destinations to the Application Server. Managing Cron jobs, batch processing and job scheduling.
• Involved in performing the Message Queue Interface(MQI) operations.
• Troubleshooting various problems in different stages of development using logs and with coordination from QA and Development teams.
• Provided technical assistance for the Web Hosting Team on various Application servers and Web Servers including IBM HTTP Server, Apache Web Server, and iplanet Server.
• Monitoring WAS performance through Tivoli Performance Viewer and tuning the system - caching, queuing, JVM parameters, DB Connection Pooling.
• Wrote both Shell and Perl scripts for various automations and reports, etc.
• Establishment of Application-specific parameters and definitions (having knowledge of Java Servlets, JSPs and EJB development and deployment concepts and database skills).
• Workload management using WebSphere Modeling and Cloning on Application Servers.
• WebSphere Performance Monitoring, Tuning and Application-specific load balancing.
• Wrote SQL scripts for monitoring application working.
• Copying tables in DB2 using export and import and load commands.
• Diagnosis and repair of the WebSphere Environment. Assisted developers with the diagnosis and repair of WebSphere Applications.
• Worked with QA Team for Stress tests, Performance tests and identified the bottlenecks of highly configurable applications. Testing was done using LoadRunner. On-call Production Support (24x7), monitoring and maintaining multiple Applications in Development, QA and Production Environments.

Environment: WAS ND 5.0/5.1, WAS 5.0.2.2, JAVA, J2EE, AIX 4.5, SiteMinder 5.0, IBM HTTP Server, Apache, IHS WebServer2.0.42, JBoss, IBM DB2 UDB 7.2, Oracle, ClearCase, WSAD, MySQL.