Leadership & Governance

Ciaran Harrington
Principal

Ciaran Harrington became Principal of The BSA in 2025. A career teacher and leader, he has worked in and led schools across the globe. Moving from London in 2008, Ciaran has an international headship career in British International Schools in Hong Kong, Singapore, and most recently Stockholm. A great believer in evidence-informed practices, Ciaran has driven initiatives to achieve the best outcomes for every young person in schools. An advocate for staff professional learning, he has also chaired a committee for staff development within a federation of more than 100 schools. Ciaran advocates for a growth mindset and encourages his students and staff to pursue continuous improvement, every single day.

Bas van Haver 
Bursar

Bas van Haver joined The BSA in 2019, initially working on the Havenstraat building project before becoming Bursar on the Management Board. In this role, he oversees school operations, risk management, compliance, and community engagement, utilizing his Dutch nationality to strengthen local relationships. Before The BSA, Bas held financial and leadership positions in international companies, including Reed Exhibitions and Orangina-Schweppes, in both the Netherlands and China. He holds a master’s degree in business economics from Vrije Universiteit Amsterdam and a post-master’s in Finance & Control from the UvA – Amsterdam Business School.

Duncan Grey
Head of Senior School

Duncan is a firm believer in creating a challenging yet nurturing environment where students achieve academically and develop holistically. He brings extensive experience and expertise from his senior leadership roles at well-regarded British international schools to his position as Head of Senior School.

Duncan began his teaching career in Nottingham, in the UK, before spending ten years at British School Muscat, in Oman and then seven years at The British School in Tokyo, Japan. Throughout his career, he has a proven track record of securing improved outcomes for students under his care and fostering a culture of continuous improvement.
 

Rosanna Russo
Head of Operations

Rosanna has served as Operations Manager at The BSA since 2019, bringing 18 years of experience in school business management and 15 years in corporate administration. She holds a specialised certification from the National College of School Leadership in the UK. Rosanna has refined her expertise through diverse roles in prominent organisations across South Africa, including The Board of Executors, Marriott Property Group, NBS Bank, and Gestetner. Her extensive background equips her to effectively manage operations and contribute to the success of The BSA.

Zee Mirza
Head of Technology

Zee Mirza brings 20 years of experience in educational IT. His diverse background includes roles supporting individual schools and guiding Academy Trusts through IT transitions. Zee is committed to revolutionising learning environments with innovative solutions and has earned recognition for his contributions to school innovation and exceptional customer service.

Beyond his professional pursuits, he has a strong passion for technology, AI, and home automation, while also valuing time spent with family and friends.

Christina Adamopoulou
Head of Admissions and Marketing
 

Christina brings over 15 years of experience across education, B2B, and consumer sectors. She has spent the past eight years in the education sector, leading campaigns focused on enrolment growth, family engagement, and brand development. Her expertise spans digital marketing, CRM implementation, and brand strategy, all delivered with a strong focus on community connection and purposeful communication.

Originally from Athens, Greece and having spent over a decade in the UK, Christina brings a global perspective.