Isemann Brings a Unique Blend of Shipyard and Administrative Experience to the Team. Jensen Maritime, Crowley Maritime Corporation’s naval architecture and marine engineering firm, recently hired Ray Isemann to serve as senior sales account executive in its Seattle office. In his new role, Isemann will be responsible for growing Jensen’s business in the U.S. Gulf of Mexico, the U.S. East Coast and along the Mississippi River. Isemann will be responsible for increasing sales and maintaining customer relationships in each area.