[3] Joos ended the season with a bronze medal on the senior level at the 2022–23 Swiss Championships behind Livia Kaiser and Kimmy Repond.

[3] Following the season, Joos made a coaching change from Gheorghe Chiper, Zoltán Kelemen, and Kelsey McNeil to Linda van Troyen and Sindra Kriisa.

[4] This season, Joos and her younger sister, Noemi, decided to start representing their mother's native Italy.

[3] Assigned to make her European Championship debut at the 2024 edition in Kaunas, Joos came sixth, including a fifth-place finish in the free skate segment.

"[6] Joos finished fourteenth in the short program at the 2024 World Junior Championships, but rallied in the free skate, coming fifth in the segment and rising to seventh overall.

Going on to compete on the senior international level, Joos finished fifth at the 2024 CS Nepela Memorial and fourth at the 2024 Tirnavia Ice Cup.