ASOS‘s human resources director Michelle Emmerson has stepped down, in the latest high profile departure at the online fashion giant.

She leaves the company less than a week after Kate Bostock, the former head of clothing at Marks & Spencer, announced that she was departing after just seven months in the role.

Asos has hired over 200 people over the last year but the news of a second senior exit is likely to fuel some concern of management unrest at the group.

Emmerson joined Asos in 2011 as people and services director and sat on the online firm‘s senior executive board.

She previously worked for BBC Worldwide as HR director and started her career in the music industry working for EMI in various finance roles before moving into human resources.

The online-only fashion retailer, which was set up by Nick Robertson & Quentin Griffiths in 2000, continues to outperform the 20-something fashion market.

Last month it reported sales soared 45 per cent to £194m in the three months to end of May, at a time when bricks-and-mortar retailers have struggled.

Asos declined to comment.