Aon has appointed Zak Mallen as a head of strategic growth for casualty reinsurance in Bermuda. Mallen joins Aon from Chaucer Group, where he served a 10-year tenure. He started his career at Chaucer as deputy class underwriter, before being promoted to class underwriter and then US casualty reinsurance underwriter. Prior to that, Mallen was an assistant underwriter at Aspen Insurance Group for five years. Commenting on Linkedin, Mallen says: “After 10 superb years at Chaucer Group I’m onto new pastures.” He adds: “I am delighted to say that I’ve joined Aon. Can’t wait to get cracking in a phenomenal team we have here on the island.”