Ryan Graves, an integral figure in the early days of Uber Technologies Inc., is stepping down from his management role after a tumultuous year.

Graves served on the executive leadership team that’s been tasked with running the company in the absence of a chief executive officer. In a staff email, Graves said he’ll remain on the board as the ride-hailing company searches for a CEO to replace co-founder Travis Kalanick, who was ousted in June. Uber declined to comment.

As an early leader at Uber, Graves helped the company lay the groundwork in its hometown of San Francisco as officials grappled with the implications the mobile service would have on transportation. Graves has taken on various roles in management during the last seven years since joining the company shortly after it was formed in 2009.

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