(ShareCast News) - SafeCharge's chief financial officer Ali Khwaja has tendered his resignation from the AIM-listed company.A statement released on Tuesday said Khwaja will step down from the role with immediate effect and intends to return to a career in the City.He will remain with the company until the New Year to facilitate a smooth transition.Former chief financial officer and current business development director Tim Mickley will take over the role.It also announced chief operating officer and managing director of SafeCharge Bulgaria Yuval Ziv will take up the role of group chief operating officer at the start of 2016.Chairman Roger Withers said he is looking forward to Ziv joining the board."He brings with him a wealth of knowledge and experience of the payments industry and the SafeCharge group."We would also like to thank Ali for his contribution to the company and wish him the best in his return to a career in the City."We are grateful to Tim for stepping back into his former role."