Roisin grew up in Glasgow and graduated from Strathclyde University having read Business Law and Business Management.  She embarked on a career with Asda, joining their Graduate Programme during the era of Archie Norman and Allan Leighton.

She spent 20 years in various roles and locations across the UK, including Head of Reward, Retail People Director and then latterly as Distribution People Director based in Leeds.

Roisin left to join Greggs in 2010 as Group People Director, becoming Retail Operations and People Director in 2017, and then Retail and Property Director in 2021, before being appointed to Chief Executive in May 2022. In July 2024, Roisin was appointed as an independent Non-Executive Director of Howdens.

Roisin is Chair of the Employers Forum for Reducing Re-offending - a voluntary role working with the Ministry for Justice and New Futures Network encouraging employers to give people a second chance to change their lives having been through the Criminal Justice System. Roisin was instrumental in the conception of Greggs’ ‘Fresh Start’  employability programme, designed to help encourage and support people leaving prison into paid employment within Greggs.

Roisin is also a trustee of the Duke of Edinburgh Award scheme.

Roisin is speaking at The Global Conference: Changemakers Impact on 14 November:

Takehome Bakery to Takeaway Behemoth. Leadership lessons from Greggs

The story of a very British brand which defied the High Street exodus. A rare example of a CEO from a HR background, Roisin will explain how this influenced her leadership style plus she’ll reveal how the `pillars of growth’ programme led to Greggs becoming the second strongest brand in the UK with AAA rating.