Kubient announced that digital advertising industry veteran Leon Zemel has joined the company as the new Chief Product Officer. Most recently the Senior Vice President of Programmatic and Platform Product at DoubleVerify, Zemel joins the company with an impressive 15+ year career as a product innovator and business leader in the ad:tech industry. Leon led the development of one of the first demand side platforms and Data Management Platforms in the industry at x+1, where he was a key senior executive responsible for scaling its technical products. He has also driven product innovation for large scale ad:tech companies such as MediaMath in addition to leading all programmatic product at DoubleVerify.