After being named Adelaide United's "Youth Player of the Year", Tongyik joined Melbourne City in July 2016 on a two-year contract.
[11][12] At the end of the season, Tongyik returned to parent club Western Sydney Wanderers and was included in the squad for their first official game, the Round of 32 of the 2023 Australia Cup.
[18] Born in South Sudan, Tongyik lived there for about three years, and had stayed with relatives in Ethiopia while documents allowing him and his family to move to Australia were processed.
[19] On 20 October 2023, Tongyik was charged with aggravated sexual assault, causing actual bodily harm in connection with an alleged incident that occurred almost five years prior in Mount Druitt.
He was granted bail under strict conditions, including residing at his home in Bellevue Hill, New South Wales, daily reporting to Waverley police station, surrendering his passport, and having only one mobile phone.