Leon Siotis is Magnite’s SVP, Business Development, International. In this role, he leads the team responsible for identifying and accelerating new business opportunities across international markets, including EMEA. He was previously SVP, SpringServe International, where he oversaw SpringServe’s commercial operations outside of the US.

Prior to this, Leon was the President of EMEA at SpotX before the business was acquired by Magnite in April 2021. He has over 17 years of experience in the programmatic and video advertising industry.