• Developed Big Data solutions and resolved problems for key IBM clients• Implemented technical solutions to sell Big Data products and solutions to numerous IBM clients• Advised and participated in Big Data POCs for IBM key clients• Designed, Planned, Implemented, Tuned, and Identified problem resolutions for Big Data clusters• Configured and federated Oracle, SQL Server, Netezza to Db2, and Db2 families• Planned, designed, installed and upgraded BI, Hortonworks Data Platform (HDP), Cloudera Distribution Hadoop (CDH) clusters, IBM Big Replicate (BigRep), and IBM Big SQL (BigSQL)• Migrated, upgraded HDP clusters and performed health checks on HDP and CDH clusters post-migration• Led teams to meet projects requirements and deadlines

• Chaired IBM Big Insights (BI) knowledge sharing sessions for planning, installing, configuring products based on IBM Reference Architecture• Planned, designed, installed and upgraded BI, Hortonworks Data Platform (HDP), Cloudera Distribution Hadoop (CDH) clusters, IBM Big Replicate (BigRep), and IBM Big SQL (BigSQL)• Migrated, upgraded HDP clusters and performed health checks on HDP and CDH clusters post- migration• Designed and implemented process to copy very large data from HDFS to AWS using BigRep on Hadoop clusters• Developed scripts to copy/restore file permissions and ownership for replication between HDFS and AWS• Implemented SSL, LDAP and Kerberos with BigRep on Hadoop clusters• Automated BigSQL load job monitoring and output analysis with Perl and Korn; improved performance• Engaged in Critical Situation performances to resolve poor application performance of Hadoop services• Designed Hive and BigSQL partitioning strategies and file formats to optimize performance• Implemented Kerberos on HDP clusters and configured Ranger plugin policies for Hive and BigSQL• Developed Korn shell script to automate copying data from NZ to IIAS• Analyzed database structure and converted tables from row-base to column-base structure

• Delivered IIAS architecture solution tailored to customer requirements• Planned and implemented very large BI and HDP clusters• Configured and implemented BigRep on small- and medium-sized BI and HDP clusters• Performed Balanced Warehouse Certification for IBM key clients including assessed the current state of the system, implemented best practice and monitored and tuned system performance• Designed, prototype, and delivered new database technologies to IBM key clients• Designed physical databases, storage (EMC DMX, DS8100, GPFS), ETL connectivity (Informatica and DataStage), monitored and tuned system performance• Reviewed current infrastructure, designed and implemented solution to accommodate future growth plans for banking systems during peak enrollment period • Developed disaster recovery processes & procedures: replication, continuous log forwarding, data mirroring• Converted PL/SQL to DB2 LUW using data modeling techniques and end-to-end migration tool• Mentored Sybase and Oracle database administrators through knowledge transfer• Designed logical and physical databases for startup companies, gaming companies, state government, etc.• Implemented physical database and provided support for Web apps, to include indexing and applications• Designed and implemented data replication registration & subscription across multiple systems with Korn scripts• Performed Health check for IBM key clients on production database systems