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Sian was appointed Managing Director Mainland Europe in July 2022, with responsibility for 10 European countries, including Croatia, Czech Republic, Denmark, Hungary, Italy, Poland, Serbia, Spain, Slovakia and Slovenia. Prior to taking up this role, Sian was already a member of the Arriva Management Board having joined Arriva as Chief Transformation Officer in March 2021with responsibility for evolving the strategic vision of the Group.

Prior to joining Arriva, Sian held Executive Leadership positions at Sydney Water Australia for over 4 years including leading Customer, Strategy and Regulation where she led the long term strategy and transformation of the business. She also led frontline operations and customer service during a time of unprecedented operational challenges.

Over the course of her career, Sian has held various leadership positions with P&L accountability, including General Management, CFO and COO roles. She has worked in large, complex organisations in industries as diverse as aviation, utilities, construction, and government. In these roles she led strategy and transformation, frontline operations, customer, innovation, and finance, all with a keen focus on customer, commercial and business performance outcomes.

Sian has a Masters of Business Administration and a Masters of Aerospace Engineering, both from the University of New South Wales, Australia, and a Bachelor of Aeronautical Engineering (Honours) from the Queen’s University of Belfast in Northern Ireland. Sian is a graduate of the Institute of Directors UK, and the Australian Institute of Company Directors. She also has a Diploma of Project Management and is a qualified Programme Manager (MSP).