SUMMARY

• I have 10 years of experience with UNIX, Solaris, Red Hat Linux, Windows, Middleware Technologies, WebSphere Application Server, WebLogic Server, IBM Web Server and Monitoring Technologies.
• My experience includes system installation, patching, hardening, application deployment, software implementation, troubleshooting and production support.
• I am skilled with IBM WebSphere Application Server integration with various web servers, databases, LDAP, configuration of JDBC Providers, Data Sources, Connection Pooling, deploying applications in WAR, JAR and EAR formats on application servers and clustering.
• My experience includes WebSphere process tuning, JVM optimization, memory tuning, Tivoli Federated Identity Manager (TFIM) upgrade, WebSphere Portal Server deployments and IBM WebSphere MQ administration

TECHNICAL SKILLS

Operating Systems: AIX, Solaris (SPARC & x86), Red Hat Linux and Windows

Databases: Oracle, DB2, SQL Server and PostgreSQL

Application Servers: WebSphere (ND and Standalone)

Web Servers: IHS, Apache, Sun One (iPlanet) and IIS server

LDAP: Active Directory, Open LDAP, Sun - one Directory Server and IBM Directory Server

Languages/Tools: SQL, PL/SQL, HTML, Bourne Shell, Korn shell (Ex awk, sed, find, etc.)

Protocols: TCP/IP (Telnet, SCP, SFTP, rlogin, HTTP etc.)

Hardware: Sun Ultra-5 10 work stations, Sun Fire V20z, Sun Fire V60x, Sun Fire V65x, Sun Fire V120, Sun Fire V240, Sun Fire 280R, Sun Fire V440/480/490, Sun Fire V880 servers, IBM P series RS6000 servers and Dell Power Edge 1800/1900/2650/2850 etc.

PROFESSIONAL EXPERIENCE

Confidential

Senior System Administrator

Responsibilities:

• Application deployment in a complex multi component environment including WebSphere Application Server (WAS), WebSphere Portal Server (WPS), Tivoli Federated Identity Manager (TIFM) and MQ in a large UNIX/Solaris/Red Hat/AIX/Windows server stack
• Managing deployments, sanity tests, user access, SSO migration from Oracle 10g to 11g, SAML token issues raised by TFIM, single and double encoded URL issues etc.
• Migration of Tivoli Federated Identity Manager (TIFM) from 6.2.0.8 to 6.2.2.16
• Deploying fix packs in WAS servers, co-ordination with Solaris and Red Hat patch management team
• MQ administration of queue managers, queues, channels, SSL certs installation etc.
• Supporting disk space requirements by creating physical volumes, volume groups, logical volumes and extension of file systems
• Creation and modification of WebSEAL junctions, start/stop operations and configuration changes
• Installation of IBM Security Access Manager (ISAM) as a part of WAS v8.5 migrations, installation of Dockers in Red Hat Enterprise environment etc.
• Execution of SBG (System Build Guide) on a daily basis that consists of EAR and AR files, WAS, WPS, MQ, WebSEAL, TFIM, Cognos, and Jasper etc. (UNIX/Linux/Windows)
• Complete responsibility for the migration of SSO/Oracle 10g to SSO/Oracle 11g migration in DEV, SIT, UAT and PERF environments (UNIX/Linux/Windows)
• Performed incident, configuration, change and release management functions

Confidential

Senior System Administrator

Responsibilities:

• Installation of Solaris and Red Hat Linux systems, hardening etc.
• Application Deployment Specialist assigned to Mobile Banking project DICE (Dynamic Image Capture and Exchange) for code implementation in various environments of heterogeneous nature comprising IBM Middleware solutions in UNIX and Windows environments
• Key resource to co-ordinate internal LOB, application, QA and project teams with vendor developers and engineering teams
• Deployed Java based applications in a large platform pool with Middleware and database network in a complex environment of AIX, Solaris, Red Hat Linux, Windows, Oracle, MySQL, WebSphere Application Server, web servers etc.
• Managed application user creation process using SARF (System Access Request Forms) including sudo rights
• Work with vendor teams to analyze WebSphere issues including JVM performance and tuning using application logs (UNIX/Linux/Windows)
• Experienced with change management system using ServiceNow
• Performed incident management, configuration and change management and release management functions

Confidential

Middleware Specialist

Responsibilities:

• Deployment, administration and operational support of DIT, SIT, UAT and PROD environments for multiple projects using WebSphere Application Server in Solaris, Red Hat and Windows environment
• Performance tuning, troubleshooting and monitoring of WebSphere Application Server and applications in the Java Virtual Machine (JVM) through wsadmin scripts and ITCAM
• Automated application monitoring using Jython based scripting on UNIX servers (Used Jython objects like AdminApp, Admin Config, and AdminTask etc.)
• Work across teams to ensure the highest-level platform performance, availability and disaster recovery. Identify opportunities for tuning enhancements to operating systems and JVM parameters and configurations, garbage collection, caching, queuing, connection pools, plug-ins and JDBC drivers (UNIX/Linux/Windows)
• Worked with project teams to successfully deploy multi-tier J2EE applications in different environments on Oracle, MySQL and DB2 databases (UNIX/Linux/Windows)

Confidential

System Administrator

Responsibilities:

• Worked with distributed application teams like TS, Business units and Engineering teams to ensure the successful implementation of products/changes into the production environment that consists of AIX, Solaris, Red Hat, Red Hat Enterprise and Windows servers
• Dealt with various phases of multi-tier Java/J2EE application deployment from installation, maintenance and support in various environments from DEV to PROD on AIX, Solaris, Linux and Windows environments
• Used Update Installer to update fix packs on WAS, IHS and plug-ins
• Installing and upgrading SSL certificates in various environments
• Responsible for SSL configuration and managing digital certificates
• Managing and monitoring the JVM performance using ITCAM and Jython scripts
• Involved in JVM performance tuning (Heap Size, Garbage Collection, and JDBC Pools etc.)
• Followed change management practices and 24/7 support

Confidential

System Administrator

Responsibilities:

• Involved in the build and support of DEV, QA and UAT WAS 6.1/7.0
• Troubleshoot problems in various environments involving integration of WebSphere and IBM HTTP Server in Solaris, Red Hat and Windows environment
• Involved in migration of multi-tier Java based J2EE applications from WebSphere 6.0 to 7.0 and worked closely with development team (UNIX/Linux/Windows)
• Applied Refresh packs, fix packs and cumulative fixes for WebSphere, IHS and plug-ins
• Handled SSL Certificates by generating CSR (Certificate Signing Request)
• Application configuration and code deployment using Jython and wsadmin scripts
• Involved in enabling WebSphere global security using Local OS and LDAP/LTPA mechanism, SSL configuration and ordering digital certs for Pre-prod and Prod environments
• Worked closely with developers to define and configure application Servers, Virtual Hosts, Web Applications, Web resources, Servlets, JDBC drivers etc.
• Managing and monitoring the JVM performance by WebSphere Heap Size, garbage collection, JDBC Pools Responsible for Architectural Design, Implementation and periodic testing and support of Web Environments with respect to High Availability and Disaster Recovery (UNIX/Linux/Windows)
• Recorded problem reports and defects using HP OpenView
• Identified, monitored, managed, and reported risks, problems and change requests

Confidential

UNIX System Administrator

Responsibilities:

• Installed and configured WebSphere XD, WebSphere Network Deployment Manager 6.0/6.1 on P-Series AIX platforms
• Installed and configured both IBM HTTP Server 6.0 and iPlanet 6.1 Web servers and plugins and configured SSL for the Web server and plug-in communications (UNIX/Linux/Windows)
• Install and configure SSH, create public keys using ssh-keygen and provide password free remote access through autorized keys file. OS hardening and system security implementation on Solaris and Linux as per the corporate documentation
• Configured and administered connection pools, multi-connection pools and data source objects for JDBC connections
• Configured WebSphere resources like JDBC providers, JDBC data sources 4/5 and connection pooling in Red Hat Enterprise environment (UNIX/Linux/Windows)
• Configured global security on WebSphere using IBM Directory Server and adminconsole
• Installed SSL certificates on the web servers using ikeyman tool