Server Management
Resume:
UZWAL
*********@*****.***
PROFESSIONAL SUMMARY:
●Over 7+ years of extensive experience in infrastructure implementation, deployment, testing, documenting and maintenance of Client/Server, Web based applications in multi-tiered architecture, Internet/Intranet infrastructure and clustered environments.
●Have Good knowledge in Oracle Web Logic Server 8.1/9.x/11g/12c and good experience in Tomcat 5.x, 6.x, 7.x
●Experience in Administration, Installation, Configuring, Designing, Tuning, Troubleshooting and maintenance of JBoss App Server 4.0.x, 5.1.x,6.2.x
●Vast experience in Clustering (both horizontal and vertical), creation and maintenance of Domains, Nodes and Managed Servers instances in JBoss.
●Deployed applications on JBoss and Web logic Servers and maintained Load balancing, High Availability and Fail over functionality.
●Able to configure and manage the important subsystems, including the Web, Messaging, Logging and Socket group
●Configure and manage the Web container, including the HTTP, HTTPS, and AJP connectors
●Experience with server Performance Tuning - Thread Dump Analysis, Core Dump Analysis when Server crashed unexpectedly.
●Extensive experience in configuring and managing secured environments using SSL and digital certificates.
●Experience in creating implementation docs for disaster recovery exercises
●Experience with LDAP, SSO (Single Sign On) functionality in complex clustered environment, and setting up SSL security for MQ objects.
●Experience in troubleshooting issues such as out of memory, memory leaks, hung session and session replication, federation of nodes and synchronization of nodes with Network Deployment Manager.
●Experienced in the configuration of Data Sources, JDBC Providers, JNDI and Connection Pooling in order to connect to databases.
●Implemented SSL security between client, WebServer & application server and generated Self Signed and Signed Certificates.
●Monitor application server performance using tools like Nagios, Splunk.
●Working with the CLI, its management model, and the operations it makes available
●Deploy applications with the CLI and with auto-deployment
●Automated many administrator tasks by writing shell scripts.
●Detect problems in early development stage and utilizing effective troubleshooting skills.
●Experience in 24X7 on-call production support and troubleshooting problems related to Web Servers, JBoss Application Server, Plug-ins, and Database related issues.
●Well organized and proficient with details, Excellent interpersonal and team skills.
TECHNICAL SKILLS:
Application Servers: Jboss application servers 4.0.x, 5.1.x, 6.2.x, Oracle Weblogic Server 8.x/9.x/10.x/12c, Tomcat 5.x, 6.x, 7.x
Web Servers: IBM HTTP Server6.1, Apache Server 1.3.x/ 2.0.x
Monitoring Tools: Heap Analyzer, log Analyzer, Wily Introscope, Tivoli Performance Viewer. Nagios, Splunk.
Scripting: UNIX shell scripting, Bash, Perl, JACL, Jython.
Database: Oracle 8i/9i/10g, SQL Server 2000/2003/2005/2008.
Operating Systems: Windows 2000/2003XP/Vista, RED HAT LINUX, Fedora LINUX, SOLARIS and AIX.
Security &Others: SiteMinder, ikeyman, LDAP, ITCAM, Introscope.
Protocols: FTP, SFTP, HTTP, HTTPS, AS2, TCP/IP, SOAP.
PROFESSIONAL EXPERIENCE:
Client: UPS, Alpharetta, GA Jun 2013 – Till Date
Role: Senior Middleware Administrator.
Responsibilities:
●Good experience in installing, configuring and supporting with Weblogic Application Server 8.x/9.x/10.x/12c.
●Experience installing, configuring and supporting JBOSS Application server 4.0/4.2/5.1/6.0 on Red Hat Enterprise Linux platforms(RHEL 5 and RHEL 6)
●Installed and configured multiple domains and completely created new Development, test, SIT and production environments.
●Installed, configured and administered and integrated Apache Web Server with JBoss and WebLogic Application Server for load balancing.
●Experience in applying patches and plug-ins for JBoss Application Server.
●Working with infrastructure team to deliver environments for each project release on time.
●Troubleshoot problem-tickets, worked with developers to identify the root cause and resolve the issue or propose a potential work around.
●Performed multiple and consistent deployments using uDeploy to JBoss andWebLogic environments as part of application rollout and eventually scripted it to automate deployments.
●Responsible for configuring JDBC connection pools
●Utilized Remedy Problem & Change management application for management of problem tickets.
●Configured Web Server plug-ins for Application Servers.
●Work on Web Security tools- LDAP Server, SSL Certificates and client authentication.
●Configured WILY Introscope for monitoring on all the Application wsdl’s and instances on Production.
●Closely monitoring Heap Memory and CPU utilization using JConsole.
●Troubleshooting, Load Balancing, Clustering, Deploying Applications, Performance Tuning and Maintenance.
●Knowledge in writing scripts to back up the configuration files and to remove the older log files using cronjobs.
●Have a good Working knowledge on Nagios and Splunk Monitoring tools.
●Analyzing the log files, taking thread dumps, JVM Dumps and Exception stack traces
●Expert in creating SSL certs and renewing certificates
●Worked as a part of 24/7 on-call support for production and non-production environments.
Environment: JBoss application server 6.2.x, Oracle Weblogic Server 7.x/8.x/9.x/10.x/12c;Splunk.
Client: Bank of America, Dallas, TX Dec 2011 – May 2013
Role: Application Support Engineer.
Responsibilities:
●Primary goal of application support team is to make sure that all the production applications which are running in WebLogic, JBoss and Tomcat are up and running without any issues.
●Providing support for different environments like DEV, QA, UAT, Staging & Production.
●Need to respond quickly for any P1-Critical issues and closely working with UNIX, Network and Database teams if required.
●Installation, Configuration, Tuning and Troubleshooting of WebLogic/JBOSS/Tomcat Application Servers on Red Hat Enterprise Linux platform.
●Deploying/Releasing J2EE applications (WAR, JAR & EAR) into clustered and non-clustered production environments and support post release issues.
●Configuring JDBC Data Sources, Connection Pools, JMS Servers, Queues and Topics.
●Troubleshooting of application related issues like slowness and out of memory issues.
●Providing temporary solutions for the issues by restarting the managed servers.
●Monitoring Heap Memory and CPU utilization using JConsole.
●Responsible for resolving/updating Incident/Work Order/Change Request tickets assigned to Application Support Team within SLA.
●Proactively monitoring the health and performance of applications and responding quickly to the alerts received from BMC Patrol Monitoring tool.
●Closely working with Development team to identify/fix production issues.
●Closely working with Change, Problem and Release management teams.
●Performing weekend maintenance activity for production applications.
●Responsible for providing 24x7 On-Call Support for Business Critical Production Applications on rotation basis.
Environment:WebLogic 8.1/9.2/10.3, WebSphere 6.x/7, Apache 2.x, SunOne, IIS, Linux, Windows (2000, XP), EJB, J2EE applications, JDBC, XML, UNIX shell Scripting, Perl Scripting, BMC Patrol, WLST.
Client: Symantec, California Apr 2008 - Nov 2011
Role: Application Support
Responsibilities:
●Installed Jboss 4.x, 5.x,, Apache 2.2 in all environments from Development to Production.
●Created Jboss domains with instances across different physical services using domain controller and host controller.
●Configured profiles, server groups, servers, datasources, and security domains on Jboss servers.
●Integrated apache using mod_jk to proxy requests to jboss servers.
●Developed stop/start scripts for the Jboss application instances.
●Worked with Load Balancers team to configure BIG IP F5 Load Balancers, VIP and integrated with Apache web server.
●Supported the release/deployment activities across all environments.
●Integrated the application infrastructure with F5 hardware load balancers and performed validation for failover and load balancing.
●Encrypted passwords for admin-console, application login and datasource in Jboss EAP.
●Created self-sign certs and installed vendor’s certs for Apache in lower environments.
●Worked with Subversion/hudson to perform the steps needed for the build procedures and managed branch creations.
●Used confluence/wiki to update the knowledge base and internal systems information.
●Performed troubleshooting of the issues such as Memory Leaks, Server Hang, and Server Crashes and worked closely with developers, architects and infrastructure teams
Environment: JBoss 4.x, 5.x, WebLogic Application Server 8.1/9.1, RedHat Enterprise Linux 5, Windows Server 2008.
EDUCATION:
●Masters in Computer Science & Engineering
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