“不遇職【鑑定士】が実は最強だった〜奈落で鍛えた鑑定スキルが、チート化して全てを見切る神眼になった件” is just a former title of the web novel. The light novel title is “不遇職【鑑定士】が実は最強だった ~奈落で鍛えた最強の【神眼】で無双する~” and the series title is given simply as “不遇職【鑑定士】が実は最強だった”.
The English title as on the cover is “The Unfavorable Job [Appraiser] Was Actually the Strongest”
Kodansha site: https://kc.kodansha.co.jp/title?code=1000037499
BookWalker: https://bookwalker.jp/series/266093/
There’s a single LN volume out so far, and the third manga volume came out recently.
Volume 1 cover