The City of Quincy hereby authorizes the appointment of a Zoning Administrator, who unless otherwise provided by Charter shall be appointed by the Zoning Board of Appeals, subject to confirmation by the City Council, to serve at the pleasure of the Zoning Board of Appeals pursuant to such qualifications as may be established by the City Council. The Zoning Board of Appeals may delegate to said Zoning Administrator some of its powers and duties by a concurring vote of all except one member. Any person aggrieved by a decision of order of the Zoning Administrator, whether or not previously a party to the proceeding, or any municipal office or board, may appeal to the Zoning Board of Appeals, as provided in MGL c. 40A, § 14, within 30 days after the decision of the Zoning Administrator has been filed in the office of the City Clerk. Any appeal, application or petition filed with said Zoning Administrator as to which no decision has issued within 35 days from the date of filing shall be deemed denied and shall be subject to appeal to the Zoning Board of Appeals as provided in MGL c. 40A, § 8. The Zoning Administrator shall serve without compensation.