The hires span channel development, campaign management, and business development. They also follow the recent appointment of a new head of marketing, Sophie Lockwood. Julia Paterson, who has previously worked with Gamma, Vodafone, and Onecom Partners, joins Cellhire as channel development manager. Ellie Whytock, who takes on the role of channel business development executive, will be tasked with identifying and securing new channel partners. "And our new Head of Marketing Sophie Lockwood strengthens our marketing capability.