• by Fern Siegel , Yesterday

Len Ostroff has been named executive vice president of business development at ad tech company Criteo.

His remit is leading global partnerships strategy and corporate development initiatives.

This is Ostroff's second go-round at Criteo, before he left the company to join Crisp as executive vice president, sales and partnerships. Prior to joining Crisp, he developed partnerships with over 150 global mobile carriers while serving as vice president of carrier relations at Twilio.

Before Criteo, he served as senior vice president, global business development at Millennial Media.

Ostroff brings a 25-year career in the tech ecosystem.