The duties assigned to administrative officers shall be exercised under the supervision of the Manager. In all cases required by ordinance or in which the Manager may deem it advisable, the Manager shall take, of any person appointed, a bond payable to the City of Bridgeport. Such bond shall be conditioned on the faithful performance of the person's duties and in such amount as the Manager shall deem requisite. Such bonds shall be filed with the Director of Finance. No person shall be appointed in the executive or administrative services of the City who has been convicted of bribery, perjury, felony or other infamous crime. Residence within the City at the time of such appointment shall not be a necessary qualification for appointment unless the Constitution of the State shall provide otherwise. If the Manager or any other officer of the City shall be a member, manager, officer or stockholder of any partnership, business, firm or corporation, which by contract furnished material and supplies to the City or to any workman or contractor for the City, that shall not of itself constitute a disqualification for office under this Charter.