Allianz Commercial has promoted Karen Swift to casualty underwriting manager for its London centre of excellence.
Helen Bancroft will replace her as senior liability underwriter.
Swift's main responsibility will be to deliver sustainable profit and growth for the London branch casualty account.
Bancroft will be responsible for developing relationships with brokers and customers and maintaining the Allianz regional casualty account.
Allianz Commercial head of property and casualty Steve Coates said: "We have developed our casualty capability significantly in the last two years and I have no doubt that Karen and Helen’s promotions will help deliver profit and growth in the London region.”