On 13 April 2015, Toniutti signed a contract with Polish club ZAKSA Kędzierzyn-Koźle. On 18 October 2015, the French national volleyball team, including him, achieved a title of the European Champions (3–0 with Slovenia in the final). On 26 April 2016, he won his first title of the Polish Champion. Toniutti was named "The Most Valuable Player" of the whole season, also during the league, he received an individual MVP award ten times. On 2 May 2016, it was announced that Toniutti extended his contract for the next two seasons (until 2018). On 9 July 2017, France won the World League after beating Brazil in the final. In 2018, ZAKSA extended the contract with Toniutti until 2019.