The 25-year-old has switched to the Geordies from Southern Premier Division Central side Kings Langley.
He had joined Kings in October 2022 from Vanarama National League South outfit Cheshunt, who he had moved to in August 2022 from league rivals Hemel Hempstead Town.
He joined the Tudors in January 2022 from Wycombe Wanderers.
He originally signed for Southern Premier South side Hendon from St Albans City on dual registration in January 2019 and went on to make 16 appearances over the second half of the 2018/19 campaign before making the move a more permanent one in May 2019, but then signing for Wycombe in July 2021.
He came through the ranks at Russian giants Zenit St Petersburg as a youngster.
He is the son of Labour MP Barry Gardiner.