Reporting to external comms manager Jonathan Church, he has been brought in to work on corporate affairs. His role will revolve predominantly around media relations strategy.
'Trevor has extensive experience of the business side of the sector and the role has been created to cope with our growth,' said Church.
Tesco posted record annual profits of £2.2bn on Tuesday and vowed to open another 130 UK stores. It also revealed plans to restructure its £12bn property portfolio, which City analysts believe will raise £1bn.