The move will see product and operations director of more than a decade, Paul Mason, go part-time, focusing solely on his operations brief two days a week.
Previously JG’s head of product, Roberts will now oversee all product development and procurement strategy, contracting and product administration across the groups brands, which include National, Just Go! Holidays, Omega Breaks and US inbound operator Albion Journeys.
"I’m grateful to have had the opportunity to work closely alongside Paul since I joined the business six months ago," said Roberts.
"We have an exciting and diverse product range, featuring some incredible tours and experiences, and I am looking forward to being part of the senior leadership team, developing our product offering further, and helping drive the business forward.”
Mason added: “After more than 40 years working in the coach industry, the time has come for me to reduce my working week as I head toward semi-retirement.
"This has been my plan for a number of years, but we needed to ensure we found the right person to lead our product team and I am confident Joanna is the perfect person for this role.”
Mason will be supported in his new operations director role by JG head of logistics Richard Oxspring.