The newly created role has been designed to give him more time to concentrate on arranging the cover story, which often runs over 20 pages, and other features.
Lester was formerly associate editor, music, and also had the reviews section under his remit. Associate editor, film, Michael Bonner remains in post, but the magazine is to appoint a new journalist to handle music reviews.
Commenting on the staff changes, Lester said: 'That will free me up to get stuck into features. Three editorial staff for a magazine approaching 100,000 sales and 200 pages was not enough. We have gone from being a niche title to something approaching a mainstream one.'
Lester and Bonner report to editor Allan Jones. In 1997, the trio left Melody Maker to launch Uncut. Lester was features editor of Melody Maker for four years before that.
The focus of Uncut, which is on 'edgy' films and music, will not change.
'We are at the 35-year-old, ex-Clash fan end of the market,' Lester said.