He will work across Havas Media Group UK and Mobext, the mobile agency. Shepherd will report to Julia Jordan, the managing director at Havas Media Group UK Investment and Digital, and Marco Rigon, the global head of Mobext. Shepherd will work across the O2, Pernod Ricard, Nationwide, BBC and Ubisoft accounts. He has been asked to "build long-term, tactical and strategic growth".