Unilever has signed a contract to outsource some of its financial transactional services to IBM, in a deal covering more than 20 European countries.
IBM will provide financial transaction processing from centres in Portugal, Poland and India.
The consumer goods firm, which has operations in nearly 100 countries and sales of more than £42bn, expects the deal to contribute to the £700m annual savings targeted by the One Unilever programme to streamline the business.
"IBM brings strong business process knowledge, deep technical expertise and a flexible business model to finance shared services. As a specialist in this area, IBM will be able to help us optimise our business process performance and deliver additional savings in support of our core business," said Unilever Europe president Kees van der Graaf.
"This change will affect quite a number of our employees in Europe. We are committed to treat all of them responsibly and will follow all appropriate consultation processes. When jobs are affected we will do our best to find alternative employment."
The implementation will be phased over two years, starting in the first quarter of 2006. About 750 staff will be affected.