Christophe graduated from EDHEC Business school in 1999. He started his career in audit at Ernst & Young in Paris. In 2003 he joined Tiscali, which later became Telecom Italia France, as financial controller in charge of reporting and control, accounting, tax, including cash management. In 2008, he participated in the sale of the company to Illiad Group and then moved to Cap Gemini as international business controller. In 2010, he joined Bull Group as CFO of Amesys Conseil, a company specialising in IT services. After 3 years he was named as CFO of the security division, dedicated to defense and cyber-security activities. After the acquisition of Bull by Atos, he retained his position on a larger international scale.