In October 2018, Hildmann was released by
Sonnenhof Großaspach. On 6 December 2018, he was announced as the new manager of 1. FC Kaiserslautern. He was sacked on 16 September 2019. He was hired by
Preußen Münster on 27 December 2019. In April 2025, he was sacked. With a five-year tenure, he was the longest-serving coach in the club’s history. On 31 March 2026 Hildmann was hired by
third-division club SSV Jahn Regensburg and was given a contract until June 2028. ==Managerial statistics==