Vice president of strategic marketing at Square Enix North America and Europe, Karl Stewart, has announced on his Tumblr page that he is leaving the publisher today, after 8 years.

“It has been an unbelievable ride over the last eight years,” Stewart wrote, in part. “Square Enix is an amazing company, whether you work for one of its studios or publishing arms, or if you’re thinking of joining, this company has given me the opportunity to grow and do what I love to do best, work in [a] creative and ridiculously talented company at the heart of the video game industry.”

Stewart is leaving to serve as vice president of brand development and strategic partnerships at the California-based Petrol Advertising. During his time at Eidos Interactive and Square Enix, Stewart worked with Petrol the the marketing campaigns for Batman: Arkham Asylum, Tomb Raider and Thief.

Stewart first joined Eidos in March 2006 as a graphic designer on Tomb Raider: Legend. He would later become creative director and North American director of marketing at the publisher, and then serve as global brand director at Crystal Dynamics in October 2009.

“But by far, the crowning glory of my time at Square Enix has been working at Crystal Dynamics and being a big part of rebooting the Tomb Raider franchise,” he wrote. “The opportunity to be a part of something as special as that game and around so many talented colleagues in Crystal Dynamics is something that I will remember for the rest of my career.”

(via Polygon)