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Sergey Klyuev is a skilled hydraulic mechanic specializing in Tunnel Boring Machines (TBM), currently employed at Global Tunnelling Experts since 2016. Previous experience includes a position as a TBM mechanic at Sivilsub S.L. in 2015, and a maintenance mechanic role at Civilia Inter from 2013 to 2014. Sergey also worked as a TBM mechanic at Tierras y Excavaciones 2000 between 2009 and 2012. Sergey holds a degree in mining engineering, specifically in open-pit mining, from M.K. Ammosov North-Eastern Federal University, graduated in 1998.