Chief technology officer Kristen Blum has been named as the latest executive to leave struggling department store retailer JC Penney.

A spokesperson for the Plano, Texas-based company today (6 June) said: "We thank her for her contributions to the company and wish her well in her future endeavours."

Blum joined the business last January from PepsiCo where she was SVP, chief information officer, Enterprise Transformation. Prior to that, she served as chief information officer at teen apparel retailer Abercrombie & Fitch.

In April, JC Penney's chief operating officer Michael Kramer left, a week after CEO Ron Johnson was ousted from the company. He was followed by Benjamin Fay, executive vice president of real estate, store design and development.

In addition, vice president of construction services Michael Koch, and two directors in the same division - Robert Laughrea and Todd York.

Weak sales, clearance deals and promotions led the retailer to more than double its losses in the first quarter. Net loss widened to US$348m from $163m, while sales fell 16.4% to $2.64bn.

Some analysts have warned that if the company continues to lose money at its current rate, it could be bankrupt by Labor Day (2 September).

CEO Mike Ullman last month outlined the first of his plans to improve the ailing business, which include better marketing, connecting with core customers as well as attracting new ones, getting the right mix of products and strengthening the online business.