On 17 June 2018, Guanca joined Saudi Arabian club Al-Ettifaq on a one-year loan from Colón.[3]
On 3 July 2019, Guanca joined Al-Shabab on a three-year contract.[4] On 9 July 2021, Guanca signed one-year contract extension before joining Emirati side Al Ain on loan.[5] On 24 August 2022, Guanca renewed his contract with Al-Shabab, signing a three-year extension.[6] On 15 July 2023, Guanca joined Al Wahda on loan.[7] On 30 January 2024, Guanca joined Al-Taawoun on a six-month loan.[8]