Skip to Main Content Skip to Site Map Skip to Accessibility Statement

Executive Directors

Director of Finance and IT

Paul Nicholson

Director of  Finance & IT  – Mr Paul Nicholson


Mr Paul Nicholson was appointed to the position of Interim Director of Finance & ICT for NIAS in July 2019.  Prior to that he held the post of Assistant Director of Finance since 2002.  He is a member of the Chartered Institute of Public Finance & Accountancy (CIPFA) and, prior to moving to Northern Ireland, held a number of senior positions in the NHS in the North West of England.






Director of Operations

Rosie Byrne Director of Operations

Rosie Byrne












Director of Human Resources and Corporate Services

Director of Human Resources and Corporate Services Michelle Lemon

Michelle Lemon







Medical Director


Medical Director Dr Nigel Ruddell

Dr Nigel Ruddell was appointed as Medical Director in November 2018, having previously held the position of Assistant Medical Director from January 2009. He graduated from Queens University Belfast  in 1992 and trained in the Ulster Hospital Dundonald before working for nine years as a General Practitioner in Dromara, County Down. He has always had a keen interest in prehospital emergency care and has responded as a voluntary BASICS doctor alongside NIAS since 2000.

Nigel is an examiner for the Royal College of Surgeons (Edinburgh) and Chair of the Education Committee of the British Association for Immediate Care. He is a member of the MCUI (UC) Medical Team providing emergency care at local motorcycle racing events. Within NIAS he has a particular interest in the provision of medical equipment and emergency drugs as well as major incident management and emergency triage, and is a regional advisor for the Hazardous Area Response Team.


Director of Planning, Performance & Corporate Services

Maxine Paterson was appointed to the position of Director of Planning, Performance and Corporate Services in April 2020. Maxine joined the public sector to the HSC via the Business Services Organisation in 2013 having held the position of Head of HSCNI, HR and Finance Shared Services since 2016. Prior to that held a number of operational management positions with the shipping and logistics industry. Maxine holds a Degree in Business Management and a Post Grad Diploma in Contact Centre Management