Design, and development of database backend features for the Paraccel Analytics database.

Row store implementation to improve INSERT performance for trickle feeds.

Buffer pool enhancements to handle predictable query and improve commit performance.

Online scale-out support to add compute nodes on-the-fly.

Ownership of the cluster management module.

Go-to person for handling critical customer escalations.

Technical Lead in the SQL development team of the Informix database server.

Design, develop, and test features in the SQL layer from the requirements to the delivery stage. resolution of complex customer problems.

Designed and implemented folding views containing outer joins, multiple DISTINCT in queries, External table fast load/unload, dynamic row sizing for hash table in grouping code, optimized temporary materialization of views and derived tables.

Worked in the Resolution Team on the IBM Informix database server, Extended Parallel Server (XPS) and I-Spy. Worked on customer escalations including critsits for high profile customers. Responsibilities included root cause analysis, debugging complex multi-threaded problems, memory corruptions, system hangs, race conditions, patching production systems online, performance issues, and fixing defects.

Implemented features and co-authored 2 redbooks.

Delivered technical talks at IBM On-Demand and Informix User group conferences.

Delivered training on IDS and XPS Administration and Informix Internals.