Peter Sellis Takes Reins of X Product Division

Sellis arrives at the social media company with a deep background in consumer technology and platform scaling. Before joining X, he held significant roles at Ustream and played a part in product strategy at several high-profile tech firms. The move signals a shift in leadership as the platform continues to iterate on its core features under its current ownership.

Bier’s exit marks the latest change in a product department that has faced rapid shifts in direction. Sellis now inherits the challenge of balancing user retention with the company’s ongoing push for new revenue streams and subscription-based functionality.