The World's Best Engineer is a Manga/Manhwa/Manhua in english language, Manhwa series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Kim Soo-Ho, a civil engineer, became a noble from a novel. But what’s this? My estate will be destroyed soon? Then I’ll have to design, build and sell.