On 16 February 2017, Liivak signed a three-year contract with Bosnian club Sarajevo.[3] He made his debut in the Bosnian Premier League on 4 March, in a 1–0 away victory over Olimpik.[4]
Flora
On 29 January 2018, Liivak signed a two-year contract with Estonian club Flora.[5] On 3 March, he made his Meistriliiga debut, in a 1–0 home win over Tulevik.
FCI Levadia
On 1 February 2021, Liivak signed a two-year contract with Flora's league rivals FCI Levadia.[6]
Sligo Rovers
On 22 June 2022, it was announced that Liivak had signed for League of Ireland Premier Division club Sligo Rovers.[7]
On 7 November 2023 Liivak announced his departure from Sligo Rovers after a disappointing 8th place finish in the league.[8]
Liivak made his senior international debut for Estonia on 26 May 2014, in 1–1 home draw against Gibraltar in a friendly. He scored his first goal for Estonia on 1 June 2016, in the fourth minute of injury time of a 2–0 home win over Andorra.[9]
Personal life
Liivak's father, Jaanus Liivak, is a basketball coach and a former basketball player.