Ganapathy Raman

Experience

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  Tata Consultancy Services

  Dec 2000 - Mar 2008

  • OpsNet is a web-based system that enables Client partner institutions to process disputed chargeback transactions with real-time editing and same-day processing• Issuers and Acquirers with an Internet connection can process Retrieval Request/Retrieval Fulfillment, First and Final chargebacks and Second Presentments messages, along with required documentation for efficient completion of tasks.• The GNS OpsNet solution also provides a tool for GNS to track and audit Chargeback compliance policy timeframes.• OpsNet application is developed in Java technology using IBM Visual Age for Java and deployed in IBM Web Sphere Application Server.• The database used in the application is IBM Universal Database (UDB)Highlights:• First end to end web development project successfully executed for Client from TCS• Various excellent coding approaches came out from this project like Front servlet architecture, Transaction Manager architecture, Data Access frameworks and Stored procedure design and coding approach which has been adopted as a standard across Client environments.• These code implementation had become standardized and are part of reusable architecture for various CLIENT projects• Implemented Data Migration from SYBASE to UDB via automated shell scripts. Show less

  • Developer/Support/Senior Consultant

    May 2001 - Mar 2008

  • Developer

    Dec 2000 - Apr 2001
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  DXC Technology

  Apr 2008 - Mar 2009

  Technology Manager

  Key Responsibilities: • Provide technology leadership and management support on database issues in production systems and help in troubleshooting issues • Providing on-call support (24/7) of production and lab systems, troubleshooting of lab and production database problems. • Review and resolve all database related alerts and warnings. • Provide first-level response to end user queries (application support teams, development or QA teams, project managers) • Develop, manage, and enhance automation scripts and procedures. • Assist in ongoing security remediation tasks, to comply with internal database security requirements. • The individual database analyst are assigned primary role for each application and they interact with the application team on all issues and changes on that environment. Show less

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  Visa

  Apr 2009 - Jul 2016

  Data Warehouse Manager and Big Data Specialist

  • Providing leadership and management support for the Singapore Data team with various management stakeholders.• End to End SME support for the Hadoop Platform and migration of application to Hadoop ecosystems components like hbase, hive, Impala, pig.• Providing leadership on capacity management, complicance,security,patching,high availability, performance and support for Warehouse Data Stores both on DB2 and Oracle EXADATA• Involved in multiple Proof of concepts for leveraging existing distributed technologies like Hadoop and NO SQL offering like MongoDB ,Cassandra to better manage data store volumes and capacity and off source database and data foot prints to less expensive commodity hardware.• Key Contributor in the design of the Enterprise warehouse and have a good understanding of the data elements and applications framework hosted there• Key Contributor in build of Hadoop Infrastructure and with specific expertise around design of Hbase Data Stores.• Good understanding on business side use case on the payment Industry with adequate knowledge on how various credit card internal systems work together• Provided technological leadership on various critical and complex projects involving multiple stake holders without impact to production live systems.• Hands on expertise on project forecasting and Resource Management systems. Good understanding of the overall costing and billing methodology. Show less

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  Teradata

  Jul 2016 - Oct 2018

  Senior Solution Architect

  Working on big Data domain area across various banks in both Cloudera and Horton works distributionEnd to End Data lake Build for a Bank: 1) Build a complete Data Lake implementation with its security 2) Worked on the complete security model and build a complete security layer for the cluster including kerberization (AD based),SSL and sentry authorizations. 3) Build a purge framework for over 10,000+ hive external and internal tables 4) Worked with Business teams to build a Data Discovery Space on the production cluster for business users that confirms to the security model of the Bank and facilitate integration of various tools like QlikSense, Microsoft R, Informatica Intelligent Data Miner. 5) Build a complete DR solution using Cloudera BDR, which has gone live and is working smoothly. 6) Supporting framework development in java especially on export of data from Teradata to Hadoop cluster 7) Successfully integrated the multiple domain of the Bank with Hue and Kerberos.8) Build a complete monitoring and Alert mechanism for the Bank production environment leveraging Cloudera features and integrated it with the SNMP trap used.9) Build a custom utility to automate the Identity Management tool(IDM+) used in Bank with the Hadoop Cluster. This is gone live in Bank and is used extensively to create, delete and manage user roles and access centrally and synch up with Hadoop cluster and generate report of all access patterns on a week basis for audit.10) Build many custom utilities in the bank to automate deployment and release of changes across various components, which is extensively used in bank and has been live for over an year.11) Guiding the architecture for the Bank Hadoop activities.Engagement for a major Bank around Unstructured Data ManagementEngagement for a major transport provider for review of their architecture and ingestion Awarded the Consultancy Excellence Award for Year 2017 across Teradata Worldwide teams Show less

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  Cloudera

  Oct 2018 - now

  Principal Solutions Engineer

  In my current role ,I work hand in hand with the Cloudera customers to provide technical consulting, coordination and problem solving on the Cloudera PlatformKey Responsibilities:* Work with Account Team to enable and cultivate deep partnership on specific accounts for Cloudera. * Engage in an hands-on approach with technical champions to incorporate and develop their solution offerings with Cloudera. * Help customers to acquire and develop their skillset and/or complement their teams so that they can effectively leverage Cloudera's offerings. * Advisory on integration methodology, enterprise architecture, platform and application infrastructure required to successfully implement the complete data management platform. * Develop and advise on best practice to customers on big data ecosystem and on hybrid cloud environments* Technical advocate to our cloud technology and provide feedback from field to product development and engineering teams. * Provide in-depth application development and deployment expertise to support the technical relationship with Cloudera customers, including product and solution briefings, proof of concepts Show less