He worked his way up through the ranks during this war, and the wider War of the Austrian Succession, distinguishing himself in several actions and gaining promotions which eventually led to his first command in 1746. He impressed his superior officers, including George Anson and Sir Peter Warren, with his ability and enthusiasm, particularly during a daring attack on a French force at Cedeira . Appointed to larger and more powerful ships, Roddam continued to win praise, and spent some time in North American waters, where he became embroiled in local power struggles.