Junsu Choi has been working as a cost engineer for a global contractor GS E&C since 2005.He is an experienced cost and construction manager with 18 years’ experience. He has extensive knowledge and experience in cost engineering and construction for metro, rail, tunnelling, deep excavation and underground civil projects in diverse and challenging environments. Throughout his years of experience, he has proven himself to be a capable manager with reasonable and creative solutions based on his expertise and engineering knowledge.He was involved in several overseas’ Tender Projects as a Cost Estimation Manager. His diverse experience in managing construction on site for major infrastructure projects in overseas projects will be applicable practically for the project.Relevant ExperienceAug 2020 - Present : Infra Overseas Estimation & Budget Team at HQ (Korea) Role : Cost Estimation Manager and Bidding Manager Estimation budget and tender price for railway projects Involved Project South Commuter Railway Project CP S-04, S-05 and S-06 (Philippine), L=31.5km Dhaka Circular Railway, PPP (Bangladesh), L=80.9km SRL subway, D&C (Australia), L=15.5kmMay 2019 - Jun 2020 : North South Corridor N101 (Singapore), Construction Manager Role : Construction Manager for underground structure Planning and Managing all underground works including traffic diversion Supervising all subcontractors and controlling all the site staff for construction organizationJul 2018 - Apr 2019 : Vamong Bridge (Vietnam), Cost & Planning Manager Role : Cost and Planning Manager (Cable-stayed bridge) Controlling contract price and schedule May 2017 - Jul 2018 : Bahrain LNG Import Terminal Project (Bahrain), Offshore Construction Manager Role : Offshore Construction Manager Planning and Managing all offshore works with 4 Self Elevated Barges, 4 Floating Barge, a dredger and Tug boatsFeb 2008 - May 2017 : Infra Domestic Estimation & Budget Team at HQ (Korea) Role : Cost Estimation Manager and Bidding Manager Estimation budget and tender price for railway and infrastructure construction projectsInvolved Project (Almost over 500 times)Major projects Suseo~Pyeongtaek High Speed Railway No. 2 & 3-2, 5 (Korea) Boryung – Taean undersea tunnel (Korea), L=6.8km Sosa Wonsi double track railway, BTL (Korea), L=23.4km Wonju-Gangleung High Speed Railway No. 7 (Korea) L=9.42kmAug 2005 - Feb 2008 : Construction of National road from Duksan to Yeasan (Korea), Construction Engineer Role : Construction Engineer