This week, HarperCollins is hiring an editorial director, while Random House needs an executive managing editor. Greenleaf Book Group is seeking a project manager, and John Wiley & Sons is on the hunt for a managing editor. Get the scoop on these openings and more below, and find additional just-posted gigs on Mediabistro.

• Editorial Director HarperCollins (New York, NY)
• Executive Managing Editor Random House (New York, NY)
• Project Manager Greenleaf Book Group (Austin, TX)
• Managing Editor John Wiley & Sons (Hoboken, NJ)
• Executive Editor ‘ZinePak (New York, NY)

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