Deossa made his debut for Atlético Huila on 25 January 2021, as a substitute against Bogotá FC in the Categoría Primera B.[3] His first start was against La Equidad, on 28 September 2021 in the a Categoría Primera A.[4] On 22 January 2022, Deossa joined Argentine club Estudiantes, on a one-year loan.[5] On 9 July 2022, after terminating his contract with the Argentine club, he returned to Colombia and joined Junior on loan.[6] On 24 January 2023, he joined Atlético Nacional on loan, with an option to buy.[7]
On 29 December 2023 Liga MX club Pachuca announced the permanent signing of Deossa.[8][9]