Northern Tier Energy, a downstream energy company, has appointed Tim McCauley as corporate controller and Lesley Zaun as deputy general counsel.

In his new role, McCauley will be responsible for the accounting operations and financial reporting of the company. He joined the company in March 2011 as director of financial planning and analysis. Prior to this, he served as director of financial reporting and planning at Presstek Corporation.

McCauley also has held various financial management positions at Eastman Kodak Company, Kodak Polychrome Graphics and Amphenol Corporation. He started his career at PwC, where his last position was senior manager in their audit practice.

Previously, Zaun worked on various transactional matters and other projects for Northern Tier Energy as outside counsel. Zaun most recently served as a partner at law firm Dorsey & Whitney.