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Work Background
VisaDirector
Jan. 2015Singapore• Led a global DevSecOps/SRE team of 15+ members, automating builds, cybersecurity scans, and production deployments to enhance developer experience.
• Expert in building Cloud Environments using Terraform and Ansible, optimizing observability solutions with Prometheus and Grafana.
• Spearheaded migration of on-premises applications to AWS, selecting optimal services for deployment.
VisaSr Consultant and Middleware Architect
Apr. 2013Singapore• Middleware Infrastructure Requirement Analysis through customer interaction.
• Planning Infrastructure Layout for new applications using TCServer, Oracle Coherence, WebSphere, Proxy, MQ, and Webservers.
• Working on POC (Proof of Concept) projects for implementing/testing new features in products (WebSphere Application Server/ TC Server/ WebSphere MQ/ IBM Http Server/ Apache/ Oracle Coherence)
• Contribute to Automation of Installation, Upgrade and Deployment of WebSphere and TC Server using Shell Scripts and implement Batch jobs using Bladelogic or Buildforge.
• TcServer and Oracle Coherence installation, configuration, maintenance, troubleshooting and performance tuning of complex, mission-critical middleware applications.
• Managing Patch Levels and Applying Fix Packs using Update Installer in WebSphere.
• Configuring and using various flavors of Apache like IBMIHS, ERS and VFabric webservers. Know how to setup load balancing, jvm routes, define mod_proxy, SSL configurations, setup health checks on Apache , URL re-direction , URL re-writing
• Manage SSL, SSL translations, create KDBs, JKSs, and p12s, create a CSR, get it signed and receive it on various keystores or key databases. Setup secure communication between Web to App and App to Web
• Experience in integrating WebSphere systems with DataPower devices like ESI/WSI devices.
IBM SingaporeIT Specialist
Feb. 2011 - Apr. 2013SingaporeIBM is the vendor providing infrastructure Support for Singapore Airlines. My team (4 Members) helps to setup new Websphere/Weblogic/MQ/Webserver environments and provide support for existing ones. There are above 50 applications hosted in Websphere and Weblogic Application Servers. In Summary, I am responsible for providing Middleware Infrastructure Support for all those applications and also actively involve in planning and designing of new setups to ensure optimal and cost-effective solutions to the customer. Below is the summary of activities in my current Role: • Websphere Application Server installation, configuration, maintenance, troubleshooting and performance tuning of complex, mission-critical middleware applications.
• Developing messaging solutions using Service Integration Bus and integrating WAS with Websphere MQ.
• Providing end to end support for Web Servers, Application Servers (Websphere Application Server and Oracle Weblogic) and Messaging (Websphere MQ)
• Planning and coordinating DR exercise programs for each of Mission Critical applications every three months.
• Doing Quarterly Employment Validation and Security Heath Checks for Websphere Application Server and Oracle Weblogic and completely responsible for any Security non-compliance during yearly Audits.
• Planned and Implemented upgrade of Oracle Weblogic from 8.1 to 11g as part of the Server Refresh Projects.
• Responsible for applying patches/fix packs every year as per the CVE notifications from Oracle/IBM.
• Provide estimates to clients with respect to CPU/RAM requirement for New Infrastructure Setup (Weblogic/Websphere)
• Extensive experience in Shell/Perl/WLST/WSADMIN scripting for automation.
• Planning for migration from Websphere 6.1 to 8.0
• Upgraded Websphere MQ from 6.0 to 7.1. SPECIAL ACHIEVEMENTS
• Received "Service Excellence Award" from IBM for providing outstanding support during critical technical cutover and for meeting up deadlines.
Bank Of AmericaSr. Systems Engineer
Oct. 2009 - Dec. 2011IndiaBank of America is a leading bank in the US and the business is dependent on a number of frontend web applications catering to online stock broking and investment banking. Many internal applications are also used to maintain employee records and timesheets. As a team member, I provided support for WebSphere and weblogic applications. Below are the BAU activities in my role: • New build and configuration changes in the development, UAT and production environments.
• Troubleshooting both application and weblogic/websphere related issue.
• Release management and deployment process.
• Performance Tuning of mission critical applications deployed in WebLogic/WebSphere
• Analyze thread dumps and heap dumps.
• SSL certificate management in WebLogic, WebSphere and Apache.
• Advanced Shell Scripting for automating batch processes.
• Scripting with WLST for automating deployment, managing server lifecycle and creating resources.
• Remediate vulnerabilities SPECIAL ACHIEVEMENTS
• Got appreciations from onsite managers for effective issue handling and on time delivery.
• Got a Guru Dakshina award for conducting weblogic training for the whole Middleware team.
• Got two Global Recognitions for Silver and Bronze awards for hard work and on time delivery.
KPIT Cummins Infosystems LimitedDRE
Jan. 2008 - Oct. 2009IndiaI worked as a Consultant for Oracle Weblogic Support, providing consultations to clients of Oracle Weblogic Server in key areas such as Application Development, Server Configuration, Deployment, and providing Production Support. • Configuring and troubleshooting WebLogic environments at customer end within tight timelines and SLAs.
• Performance Tuning of the Weblogic Application Server.
• Java Messaging Service, Distributed Queue/Topic, Foreign JMS Provider and SAF clients. Configuration and troubleshooting
• Configuring SSL, generating x509 Certificates, Keytool, 2-way SSL, Sample codes to be used with SSL and stand-alone clients.
• Installation and configuration of Apache and other HTTP Proxy Servers connecting to WebLogic.
• Supporting application monitoring and production support, assist with UAT/Performance testing and DR Testing.
IBM India Private Ltd.Application Developer
Jul. 2006 - Jan. 2008India• Responsible for the original specification, design/analysis, coding and implementation of Application. • Major responsibility included designing and development of software utilizing Java, JSP, Servlet, Ajax, and Web Services. • Troubleshoot application issues. • Completely responsible for coding an application called “CRC Admin” for updations of master data. Utilized Core JAVA, Ajax, JSP, Struts 1.2, J2EE, IBM DB2, WebLogic Server 8.1 and WSAD5.0
• Other responsibilities included testing modules, debugging, consulting, with/and giving demonstrations to clients, supervising the work of other programmers including training juniors in software design.
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