Jago joined the UK’s biggest retailer six years ago as category director for wines, beers and spirits and said he will miss working on the latter categories.
But he said he was excited to take on a broader role in Tesco’s global wine business, adding: “It is a very exciting opportunity and although the current UK market is challenging for wine, I firmly believe that Tesco’s scale can be used for good in the wider industry.
“I have thoroughly enjoyed working with our beer, cider and spirit suppliers during the last six years and will be sad to give up this side of the business.
“However I look forward to developing my career in this new international role.”
Warburton has been with Tesco for 12 years and has been promoted from his previous role of category buying manager for beers and spirits.
Before joining the BWS team, he worked in both grocery and general merchandise.