He is the tech lead for the Databus project, LinkedIn's proprietary system for timeline-consistent low-latency change capture. Databus enjoys a wide-spread use in search and graph online index maintenance, replication, cache invalidation, view materialization. Prior to that, Chavdar worked in the display advertising group at Yahoo! as part of the RightMedia online ad exchange helping process billions of transactions per day. Chavdar is originally from Bulgaria and has a master's degree from Cornell University where he focused on semi-structured search and data processing. He was one of the original editors of the W3C XQuery and XPath Full Text standard.