Microsoft's principal development manager for its Bing search engine has quit the role in favour of a job at online tat bazaar eBay.
Scott Prevost has already joined eBay as the company's search product management veep as his LinkedIn account shows here.
He joined Microsoft in 2008, when the software vendor bought Powerset for $100m.
Prevost spent much of his time at Microsoft melding Powerset's semantic indexing with Bing proper.
Or, as he preferred to detail his work: "These projects involve data mining, machine learning, classification, natural language algorithms, query analysis, entity extraction, metadata extraction from web pages, UX feature design, A/B testing, metrics development/data analysis, and scable [sic] and performant infrastructure engineering."
The Powerset man is the latest among a long list of execs to have quit Microsoft. ®