Aviva Investors chief investment officer Shahid Ikram has become the latest high profile figure to leave the firm.
Aviva confirmed he had left in December and said that Jean-François Boulier has taken on the position of chief investment officer for fixed income
The firm said Dan James, head of global markets at Aviva Investors, has also been given greater responsibility within the UK fixed income team.
Aviva Investors went through a round of 60 job cuts last year as part of a strategic review of the business.
Head of strategic asset allocation Mirko Cardinale left in September to join Russell Investments as head of asset allocation for Europe, Middle East and Africa
Head of investments Paul Abberley then left the firm at the end of November 2013, though Aviva claimed his departure was not linked to the job cuts.
While many people have left the firm, Aviva also hired Euan Munro, former head of global multi-asset investing and fixed income at Standard Life Investments, as chief executive and he joined the firm in January this year.
