SUMMARY:

• Confidential certified System and Network Administrator with 14 years of solid experience in Systems, Installations, Configurations, Middleware Technologies, Application Servers, Web Servers, Configuration Management, Application Build Process, Databases, Networks and Management.
• Solid Administration experience with the different flavors of UNIX (Open BSD, Redhat Linux, Solaris) and Windows systems, expertise in writing scripts.
• Expertise in managing user accounts, maintaining systems security, configuring new devices, installing and partitioning disk drives, managing file systems, scheduling system related jobs, managing print servers, configuring system initialization files, administering software packages and patches, managing the boot PROM, performing backups and recovery operations etc….
• Solid experience with J2EE environment, Middleware technologies, Websphere, Web logic, JBoss, Tomcat application servers and Apache, IIS web servers. Expertise in installations, configurations, Deployments, Performance tuning, Server configuration, Portal administration, clustering and management of multiple enterprise applications.
• Extensive experience in setting up multiple instances, cluster environments.
• Extensively worked on Deployment/auto deployment and troubleshooting of components and applications in WAR, JAR and EAR formats in Domain and Clustered environments.
• Solid experience in configuration management using CVS/ SVN version controlling systems, application build process, automating build process with scripts.
• Expertise in SSL configuration, Siteminder, Apache Load balancing using Mod JK. Managing and monitoring the JVM performance by java heap Size, garbage collection, JDBC Pools and analyzing thread dumps.
• Strong understanding on Networking Protocols and LAN components (Repeater, Hub, Bridge, Switch, Router, Gateway, Concentrator etc.….)
• Good understanding on databases (MS Access, MySQL, SQL Server, Oracle).
• Technically sound with Windows and Microsoft Office products.
• Strong analytical and problem solving skills. Excellent presentation skills (strong verbal and written communications).

TECHNICAL SKILLS:

Operating Systems: Solid Understanding of Open BSD, Redhat Enterprise Linux3/4/5.x/6.x and Solaris 7/8/9/10Windows 9X/NT/2000/XP/VISTA/2007.

Web/ Application Servers: IIS, Apache 1.3/2.X, Tomcat 3.3/4.1/5.X, JBoss 3.2.X/4.x/5/6/7,JBoss, EAP, Weblogic 8.1/9.0, WebSphere 7.0/ 8/ 8.5 Scripting Shell, PHP,ANT

Languages: Basic working knowledge with HTML, DHTML, C, C++, Java, J2EE,JDBC, XML, ANT, PHP, SQL.

Change Control: CVS, VSS, SVN

Tools: Cacti, HPD, Nagios. VBulletin, Verity ultra seek, Lyris list manager,Scarab, Remedy, Web trends, Jaguar Reports.

RDBMS: MS - Access, MySQL, SQL Server, Oracle.

Networks: Windows NT, Novel.

Networking Protocols: SLIP, PPP, ARP, RARP, IP, ICMP, TCP, UDP, DNS, FTP, telnet,rlogin, DHCP, SMTP, SNMP, POP3, IMAP4, HTTP, UUCP, Ethernet,NIS, RIP, NFS, Firewall, routing, load balancers, Internet, NetscapeNavigator, IE, Email clients based on POP3/IMAP and Send mail.

Network Products: CISCO Routers, 3COM Switches, Modems, 3COM Hubs, E-NetCards.

PROFESSIONAL EXPERIENCE:

Confidential, Plymouth, MN

Middleware Administrator

Responsibilities:

• Installation, Configuration, Administration, Packaging, Deployment of J2EE applications, Migration, Performance Tuning, Troubleshooting, Security management and Patching.
• Install and Configure JBoss Enterprise Application (EAP) and Apache Webserver.
• Install and Configure Apache Tomcat and provide extensive support in deployment, change management and application level troubleshooting for all the environments.
• Develop Shell, Python and Batch scripts to automate the installation and deployment of J2EE applications on JBoss and Apache Tomcat Environments.
• Creation of Server groups and clusters in WebSphere Application server and cloning of servers and provided extensive support for the Development, Test, Pre-Prod & Production environments.
• Configuring the Global Security on WebSphere using IBM Directory Server, creating Users and Groups, assigning different authorization roles for each user and securing the admin console.
• Monitoring and tuning the Performance of WebSphere environment using Dynatrace tool.
• Configuring resources like JDBC Providers, Data Sources, Connection pooling.
• Supporting performance and load test and tuning the Applications on Application Servers for high availability.
• Implementing Security, creating SSL certificates and CA signed certificates using Key tool.
• Provide 24/7 on call support to provide better service for the application servers.

Apps Systems Engineer

Responsibilities:

• Maintenance of VMware Redhat Linux servers and Perform regular system administration duties on all the responsible servers.
• Installing, Configuring, Securing Redhat Linux OS through kickstart and regular installation process for managing the applications and databases
• Measure and analyze the current VMware/Linux systems to improve performance and reliability.
• Working with JBoss Enterprise Application platform, configure/setup/troubleshoot existing setups as well as engineer new implementations.
• Managing the various clustered environments for Wellsfargo’s J2EE based CORE application.
• Troubleshooting and resolving JBoss issues, analyzing the JBoss errors, i.e. log file output, java exceptions and provide feedback to developers.
• Performing J2EE code deploys under JBoss/ Apache hosted on Redhat Linux Operating System.
• Configuring and deploying clustering and high availability technologies in both RedHat and JBoss
• Managing and monitoring the JVM performance by java heap size, garbage collection, JDBC pools and taking thread dumbs.
• Installing, configuring and managing monitoring tools like HPD, Optier, Nagios, Cacti for Confidential ’s CORE project lab environments.
• Installing and supporting Apache, mod jk, SSL, Channel Secure on Linux.
• Installing, configuring and managing Maven SVN and the repository on Redhat Linux for CORE application development process.
• Wrote Shell scripts, Ant scripts for the automatic startup and shutdown, backup and recovery process, and health monitoring of App servers.
• Developed ANT scripts, UNIX shell scripts to automate the deployment process of applications.
• Interacting across multiple levels of an organization.

Lead Tech/Apps Support

Responsibilities:

• Providing 24x7 on call support for all the J2EE based applications of Gate Gourmet. Gate Gourmet is the world’s largest independent provider of catering and provisioning services for airlines and railroads.
• Supporting all the applications running on Jboss application server with the front end Apache web server and the backend Oracle database on Redhat Linux servers.
• Support includes managing the clustered QA, UAT and Production environments for all the applications.
• Responsibilities include the setup, upgrades, patches, configuration and performance tuning of all the owned environments using Jboss Application Server and Apache Web Server running on Redhat Linux servers.
• Deployed different applications like WAR, JAR and EAR on clustered environment.
• Configured and administered JNDI, JDBC Connection Pools, Multi Pools and Data Sources on Jboss.
• Configured clusters for high availability, load balancing and failover.
• Analyzed the parameters of garbage collection and Heap size for performance tuning of JVM.
• Involved with the developers in trouble shooting and fixing day-to-day problems of the applications in Production.
• Involved in Configuration management, Software deployment, Change management, Performance monitoring and Application maintenance.
• Includes the regular builds and hot fix deployments on all the owned environments.
• Developing scripts for all the production monitoring and deployment activities.
• Working with the DBAs and development teams in resolving production issues.
• Also responsible for the complete build process of all the J2EE based applications.
• Managing the deployment process with the proper branching and tagging in SVN repository.
• Interacting with the client continuously for all the approvals and updates.

Web Applications Administrator

Responsibilities:

• Providing 24x7 on call production support for several Medical and Quality related Federal and State J2EE based applications running on Web logic and JBoss application servers with the backend databases of Oracle on Solaris 9 servers.
• Primarily responsible for installing, configuring, monitoring, deploying code and problem resolution within Web logic 8.1/9.0 / JBoss application servers and Apache web servers installed on Confidential Solaris.
• Setup, configured and maintained the clustered Web (Apache) and Application servers (JBoss & WebLogic) environments for J2EE based applications for the high availability and load balancing.
• Developed lot of scripts using shell in order to automate the administrative tasks.
• Participated in the development of tools and utilities to aid production support and monitoring activities.
• Involved in the migration of large-scale production environment during the datacenter change at IFMC.
• Setup, Configured and maintained Cognos reporting tool on Bea Web logic environment.
• Responsible for day-to-day production issues and regular applications deployments/ maintenance of multiple Web Logic/ JBoss environments, which have backend Oracle databases.
• Configured JDBC resources, data sources for SQL Server, Oracle databases and bounded to the J2EE applications, configured the connection pools for the various data sources
• Setup and managed the Lyris List Manager for the email groups’ management.
• Setup, configured and managed web trends software for analyzing application logs.
• Setup, configured and managed vBulletin web based tool for forums, which uses MySQL as the backend database.
• Setup, configured and managed Verity Ultra Seek web search engine.

Web/ Systems Administrator

Responsibilities:

• Provided 24x7 support (Installing/upgrading, configuring and maintaining) for production and development servers (Redhat Linux/ Windows 2003 Server) for InFocus- Performance Management J2EE application at Confidential .
• Setup and maintained Development, Testing, Staging and Production environments by using JBoss application server, Apache web server, SQL Server, Visual Mining Net Charts Server, Java, and Essbase for the InFocus- Performance Management web application development.
• Setup and maintained CVS - Concurrent Versions System from the scratch and supported the developers on CVS issues.
• Configuration Management: Performing and documenting application builds, monitoring the development process, facilitating the change control process, and assisting developers. Tracking changes to the application throughout the development process.
• Managing user accounts and providing technical support to the developers on technical issues.
• Setup and managed Scarab, an issue tracking system for the bug tracking.
• Developed scripts to automate routine system administration tasks and also developed ANT scripts in the process of application deployments.
• Documenting hardware/software configuration information of all servers that I am responsible for.

Systems/ Network Administrator

Responsibilities:

• Providing routine technical administrative support for servers including WINDOWS, REDHAT LINUX and SOLARIS and desktop systems in the assigned area.
• Writing scripts using Shell and PHP
• Configuring systems to function in a networked client/server environment.
• Setting up system logging utilities, basic diagnostics and availability enhancements.
• Writing scripts for the system administration purpose in the environment of Apache, PHP and MySQL packages.
• Setup and secured/hardened all network servers, including Name Service Servers (NIS+, DNS, LDAP), Email Servers, File Servers, Database Servers, Web Servers, Print Servers, Boot Servers and Installation Servers.
• Configuring & managing NFS service for the file sharing across the network and DHCP for the automatic IP address distribution.
• Monitoring servers and applications for errors and performance problems
• Planning and implementing disaster recovery and high availability for critical systems
• General troubleshooting of operating system, hardware, software, networks and application problems and tuning operating system/ hardware for optimal performance
• Providing technical support to over 150 faculty PCs and about 250 Lab PCs in the heterogeneous environment including WINDOWS, REDHAT LINUX, SOLARIS and MAC systems.