Ibáñez's career began in the youth system of Lanús, prior to moving into senior football with Primera B Metropolitana team Comunicaciones in 2015. In his fifth appearance, Ibáñez scored his first goal in a 4–2 defeat against Deportivo Merlo on 14 March. Two weeks later, he received his first red card in a 1–1 draw with Almirante Brown on 27 March. In total, he scored fifteen goals across his first two seasons in fifty-four appearances for Comunicaciones.
On 1 August 2016, Argentine Primera División side Gimnasia y Esgrima loaned Ibáñez. He scored on his Gimnasia y Esgrima debut during a win over Vélez Sarsfield. A year after joining the club, Gimnasia y Esgrima signed Ibáñez permanently after seven goals in thirty matches. He scored two goals in the first match following in a 4–4 draw away to Defensa y Justicia.
Nine appearances later, Ibáñez left Gimnasia y Esgrima in January 2018 as he joined Ascenso MX team Atlético San Luis. He made his Mexican football debut on 19 January, coming on as a substitute for Pablo Olivera in a goalless draw against Tampico Madero. Ibáñez made his 100th league appearance in a loss versus Celaya. Ibañez scored his first goal for them on 20 February, in a 2–0 win against Zacatepec. After netting seven goals in thirteen games in his first campaign, Ibáñez scored twenty-one times in the subsequent 2018–19regular season which included a four-goal haul versus Celaya on 2 February 2019. He subsequently netted two in six in the play-offs, which the club won after beating Dorados de Sinaloa over two legs to earn a spot in Liga MX while earning them their second consecutive title; he also ended the campaign as the division's top goalscorer.
Atlético Madrid
On 5 June 2019, Atlético Madrid of La Liga, who hold an ownership stake in Atlético San Luis, announced the signing of Ibáñez; effective from July. He was immediately loaned back to the Mexican side on 1 July.
Atlético San Luis loan
Ibáñez appeared for his Liga MX bow on 20 July 2019 in a home loss to UNAM. He netted in an exhibition match against his parent team on 3 August, putting his side ahead before the La Liga club overturned the deficit to win.
