Jones joined Nestlé from Kellogg in February this year, where he worked for 17 years, serving as sales director, business team manager and NAM in the sales division.
In his new role, he will report to Nestlé Rowntree managing director Chris White. Jones has replaced Vince Robinson who is now group sales director for Nestlé UK and Ireland.
Nestlé Rowntree has also switched the roles of Damien Timmins, head of customer marketing, and Steve Smith, head of convenience channel.
Timmins has been with Nestlé since May 2004, having joined from Coca-Cola where he worked for 16 years in its Australia, North Asia and South Asia divisions.
Smith joined Nestlé 24 years ago, during which time he has been marketing manager and media manager.