Zanatta has spent most of his senior career in Scotland and has previously played for Heart of Midlothian, Queen's Park, Alloa Athletic, Partick Thistle, Ayr United, and Hamilton Academical.

He left Vancouver in February 2015, having been unable to agree to terms on a contract and set his ambitions on Europe[4] and went on trial with several European clubs, including Ipswich Town,[5] IFK Göteborg and Heart of Midlothian.

[1] Zanatta made his first team debut on 31 October, coming on as a 70th-minute substitute in a Scottish Premiership match against Partick Thistle at Firhill Stadium, replacing Sam Nicholson in a 4–0 win.

[8] In January 2016, Zanatta was originally expected to be loaned to a lower division club, but he impressed Hearts coach Robbie Neilson enough to stay with the first team.

[16] After impressing in his loan spell, Zanatta was recalled by Hearts in January 2018, and his departure was considered a significant blow to Rovers' promotion battle with Ayr United.

[24] Zanatta made his Jags debut on the 31st of August against Ayr United, winning a penalty for the opener before assisting Shea Gordon after dribbling past 5 opposition players.

In August 2022, Zanatta moved to fellow Championship side Hamilton Academical for an undisclosed transfer fee and signed a two-year contract.