Harikrisnan Kunhumveettil is a Senior Spark TSE at Databricks. In his current role, he works with strategic customers of Databricks and helps in resolving challenging Spark issues and implement the best practices. The area of expertise is Delta, Structured Streaming, and Spark SQL. Harikrishnan is a Big Data Enthusiast with expertize in solving scalability and performance issues in various Distributed systems. He started the career as a Hadoop Application developer and worked on building the first Data lake at Nielsen. He has a decade of experience working on multiple Hadoop platforms and Cloud technologies. Before joining Databricks, at MapR, he led the Spark TSE team.