In the 2009 summer Iñaki joined UD Logroñés in Segunda División B. He featured regularly with the side, featuring in more than 120 matches during his four-year spell. On 22 July 2013 Iñaki signed a one-year deal with Racing de Santander, also in the third level.[2] He featured in 37 matches during the season, as the Cantabrians returned to Segunda División at first attempt.
On 19 August 2014 Iñaki signed a new two-year deal with the Verdiblancos.[3] Five days later he played his first match as a professional, starting in a 0–1 away loss against Girona FC.[4]
Iñaki scored his first goal in the second level on 27 September 2014, netting the second in a 3–0 home win against Recreativo de Huelva.[5] On 6 December of the following year, after suffering relegation, he moved to Deportivo Alavés after agreeing to an 18-month deal.[6]
On 2 July 2016, Iñaki signed for CD Tenerife also in the second level.[7] He left the club in 2018 after being sparingly used, and returned to Logroñés on 13 January 2019.[8]