Born in Montreal, Quebec, Bounou moved to Morocco at an early age, and made his senior debut with Wydad Casablanca in 2011, after being promoted to the first-team a year earlier. On 14 June 2012 he moved to La Liga club Atlético Madrid, being initially assigned to the reserves in Segunda División. Bounou appeared regularly for the team in the third level, and signed a new four-year deal on 31 May 2013. In the 2014 summer, after profiting from Thibaut Courtois and Daniel Aranzubia's departures, he was definitely promoted to the main squad. Bounou made his first-team debut on 24 July 2014, in a 1–0 pre-season friendly win against CD Numancia. On 1 September, he was loaned to Segunda División's Real Zaragoza, in a season-long deal. Kept out by Óscar Whalley for the first half of the campaign, he made his debut the following 11 January in a 5–3 loss at UD Las Palmas, and finished the season with 16 appearances. In the play-offs, after Whalley's performance led to a 0–3 home loss to Girona FC in the first leg, Bounou replaced him in the second for a 4–1 win and advancement on away goals; Zaragoza lost the final by the same rule to UD Las Palmas. On 23 July 2015, Bounou returned to the Aragonese side, again in a one-year loan deal. On 12 July of the following year, he signed a permanent two-year contract with fellow league team Girona FC. On 2 September 2019, after suffering relegation with the Catalans, Bono joined Sevilla FC in the top tier, on loan for one year.
International career
Bounou was eligible to represent Canada or Morocco, but opted to represent the latter, appearing with the under-20 team at the 2012 Toulon Tournament, playing in one match during the competition. He was also selected in the 18-man under-23 squad for the 2012 Summer Olympics, but acted as a backup to Mohamed Amsif during the tournament, in which Morocco were eliminated at the group stage. On 14 August 2013, Bounou was called up to the main squad for a friendly match against Burkina Faso. He made his debut in the following day, playing the entire second half of an eventual 1–2 defeat in Tangier. In May 2018 Bounou was named in Morocco's 23-man squad for the World Cup in Russia, where he sat on the bench as Munir played all three group games. At the 2019 Africa Cup of Nations in Egypt he was first choice for Hervé Renard's team, keeping clean sheets in 1–0 wins over Namibia and the Ivory Coast to qualify for the last 16.
