Zynga’s Vice President of Engineering, Neil Roseman, has recently resigned after 15 months at the social media games company.

Last month, Roseman had oversaw the the launch of Zynga’s social games platform, Project Z. This allows games to be played directly on Zynga’s site, bypassing Facebook, which helps the company assert its independence from the social media giant. Roseman also managed Zynga’s San Francisco office, and helped to recruit engineers. He confirmed that he left the company about three weeks ago in a brief phone interview, after the launch of Project Z.

Roseman cited the main reason for leaving as too much time away from his family in Seattle, as he was spending three or four days a week in San Francisco. He added that he will likely get into something entrepreneurial in the future. Before his time at Zynga, Roseman was the CEO of Evri, a startup that Paul Allen invested in, and was also one of Amazon’s first engineers.

Zynga didn’t comment on Roseman’s resgnation, but confirmed that its Seattle office was being managed by Jim Veevaert, former president of Jerry Bruckheimer Games. Zynga employs about 50 people at its Seattle office, and is expanding. Besides hiring, Zynga also acquired Seattle-based Gasworks Games and CupidsPlay. Recently, Zynga Seattle launched the gaming community Slingo on Facebook.

It was recently reported that Mark Pincus, CEO of Zynga, will be selling 15% of his stake in the company, roughly 16.5 million shares, its secondary offering. Zynga is recently priced its shares at $12, a bit of the downgrade of their market value of $12.31.