Yayat Sudrajat currently serves as a Field Construction Engineer at Freeport Indonesia since April 2023. Prior to this role, Yayat worked at PT. Chiyoda Internasional Indonesia as a Piping Designer, specializing in 3D piping design from October 2019 to April 2023. Yayat's experience includes positions as a PDS/PDMS Piping Designer at PT. SAE from October 2015 to September 2019 and as a Piping Designer at PT. Adhi Karya EPC, contributing to the Cilacap Resid Fluid Catalytic Cracking (RFCC) Project from December 2011 to September 2015. Earlier in the career, Yayat held the position of Piping Draftman at PT. Tripatra Engineers and Constructors from May 2009 to December 2011, and at PT. Dikatama Adidaya Mandiri from November 2007 to March 2009.