(Sharecast News) - The chief technology officer of Marks & Spencer is reportedly leaving the retailer less than a year after its operations were devastated by a cyber attack.

According to Sky News, Josie Smith is stepping down just 18 months after joining the company.

Sky said her departure was disclosed internally this week in a memo which said she had "decided to leave M&S".

Smith, who previously worked at BT Group and Vodafone, will be replaced by Darren Gibson, the fashion, home and beauty technology transformation director. Her exit comes four months after Rachel Higham, M&S's chief digital and technology officer, left the business.

According to Sky, Monday's internal memo also said that Krista Nordlund, M&S's chief product officer, would leave the company in July to return to the US.

At 0945 GMT, M&S shares were down 0.1% at 360.90p.