Ohayon joined the Maccabi Tel Aviv youth department at the age of 15 and in his first year with the Under-17 side he played a big part in helping his team win the league title. Ohayon moved to the Under-19 team in his second season and was an integral part of the club that won the 2014/15 championship.

The keeper made his First Team debut in August 2015 when he played against Maccabi Petah Tikva in the Toto Cup competition as well as against Bnei Yehuda in the same tournament later on that same season.

In the summer of 2016, Ohayon signed a five year contract extension and was loaned to Premier League outfit Watford for a season. June 2018 saw the shot stopper take part in Maccabi's preseason training camp.