Warren’s team includes Jonathan Rosemont, formerly web relations consultant at the agency.
Warren and Rosemont will work with the agency’s tech team and its 70-strong global social media practice.
The pair report to UK MD Colin Byrne and global head of social media Bonin Bough, who works at Weber Shandwick’s New York office.
Warren and Rosemont are working on projects for most of the agency’s clients, including Microsoft.
