Previously, MacKay served as assistant vice president at Global Captive Management for more than seven years.
Previously, he led European broking solutions at Guy Carpenter for more than three years.
Based in Mumbai, he will report to George Attard, CEO of Aon Reinsurance Solutions in Asia Pacific, and join the region’s reinsurance executive committee.
In this role, he will be responsible for new business development across the Asia Pacific region, supporting client relationships in the key areas of credit, bond and political risk.
In her expanded role at Lloyd’s, Miller will continue to lead the commercial directorate and remain a member of Lloyd’s executive committee.
Rory MacGregor, divisional head of non-marine, will be promoted to head of underwriting.
In this role, McDougald will be responsible for the overall growth, innovation and talent development of Victor US.