Aviva has said 384 jobs in its Bristol office are at risk due to a simplification of its life business.
The 384 staff at Bristol's Trinity Quay office could lose their jobs from the second half of 2012 as part of a phased consultation prompted by the end of a joint venture with RBS.
Last August, the insurer said its partnership with RBS - serviced by an administration centre at the Bristol office - would be replaced by a seven-year distribution deal with the bank for the sale of life, protection and pension products.
"We advised staff a year ago that we would be considering how best to continue servicing the business from this former RBS partnership and that we expected roles within the Bristol administration centre would be at risk from 2012 as a result of the joint venture ending," the insurer said in a statement.
It added: "After careful consideration, we are proposing to administer this business from our core operations in York, Norwich and Sheffield."
A spokesperson stressed the insurer is not closing down its Bristol office, with Aviva retaining around 60 specialist underwriting and claims assessment roles in the city.
A further 80 employees working for other parts of the business who are unaffected by the decision.
Earlier this month Aviva confirmed the prospect of long-expected job losses in its Irish operation with the announcement that 770 jobs are set to go from Aviva Ireland.
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