Bullock joined Stewart Petrie’s coaching staff in 2019, returning to Links Park where he had spent a short spell as a player.
Petrie said: “As well as bringing extensive knowledge and experience to the coaching team, he was always a great professional, with an infectious personality, and we will all miss him greatly.
“As someone I have known for many years, I would just like to say a huge, personal thanks to Tony, for all his efforts and commitment over what has been three very successful campaigns for the club.”
The club are now looking for a replacement, contact office@montrosefc.co.uk