School Structure

Dr Kleiss has been at OSC since 2019. Originally from Toronto, Ontario, she started her career at international schools in 1994. She brings 28 years of experience serving and leading accredited international schools across eight countries: the USA, Dominican Republic, Brazil, Germany, Egypt, Saudi Arabia, Cyprus, and now Sri Lanka. Her research interests are on how culture influences communication styles across the international school landscape, and she strongly believes in parent engagement in schools, system thinking, inclusive education, and developing an ethos for continuous improvement. She volunteers her time to chair accreditation visits worldwide for MSA and CIS. Dr Kleiss lives and breathes the motto “Unity in Diversity” and values integrated thinking and distributed leadership. She is a proud mom with a Gecko attending OSC.

Mr Grandbois has been a proud OSC Gecko since 2011. Born and raised in Kenora, ON, Canada, Mr Grandbois has a passion for the outdoors, and he loves to explore and learn about new cultures. He began his teaching career in Canada and then moved into international education in Egypt, Peru, Tanzania, and then Sri Lanka. He is joined by his wife, Kelly, and his three children, one of whom graduated from OSC and is now attending The University of British Columbia (UBC) in Canada.

Dr Purnell joined OSC as the Secondary Principal in 2022. Originally from the United States, he started his career in international schools in 2000 and has worked in Thailand, Bolivia, South Korea, the USA, and India. Professionally, he is interested in adolescent social-emotional development, inclusive education, experiential and inquiry-oriented pedagogy, creative assessment practices, group facilitation, and adult learning. Outside of school, he is passionate about music, travel, food, motorcycles, and jiu-jitsu. Dr Purnell has a strong focus on community and believes that we all learn and work best when we feel valued, supported, and respected

Ms Wood began working at OSC in 2019. Although she is originally from Colorado, USA, she has spent the last 10 years overseas, working in international schools in Saudi Arabia and Qatar. Ms Wood specialises in social and emotional learning and conceptually based elementary curriculum. Her passion is to help learners to inquire and take action on the issues that matter the most to them. In her free time, she enjoys travelling with her husband, reading fiction books, and exercising outdoors.

Mr Eagle joined OSC in August 2021 as the MYP Coordinator and Secondary Assistant Principal. He has been working in IB schools around the world for the last 18 years before arriving on the beautiful island of Sri Lanka. Originally an English Language and Literature teacher, he has taught in both Hong Kong and Germany as a curriculum coordinator, projects coordinator, and department leader. He is passionate about building a school culture in which students learn the skills, knowledge, and dispositions that allow them to face challenges that comes their way. He joins the OSC community with his wife, an amazing art teacher, and his son and his daughter who attend Secondary and Primary School respectively.

Ms Lee has been at OSC since 2021 and brings a broad range of international experience in Educational Psychology, Counselling, Community Mental Health, and Psychotherapy. In the past 15 years, Ms Lee has worked in numerous countries in the Middle East, Europe, and North America in both school and clinical settings. She brings a passion for bridging social-emotional learning with the academic setting

Ms De Cock has been at OSC since 2022 and brings a broad range of experience in School Counselling, Community Mental Health for children and adults in the 3rd sector of the UK specialised in discrimination. She brings a passion for providing emotional creative therapeutic support for the well-being of students, parents, and the community where she has lived with her family amongst IB schools in the UK, USA, Saudi Arabia, Angola, Bahrain, and Mexico

Mr Echols joined the OSC Secondary School as the high school counsellor in 2022. He began as a classroom teacher in 2006 in the United States and has been teaching internationally since 2010 in Saudi Arabia, Kuwait, and Australia. He received his Master of Counselling from Monash University in 2015 and has been working since then as a comprehensive counsellor in South Korea and now Sri Lanka. He is joined at OSC by his wife, Amber, and three children, Sadie, Naomi, and Ryman. He believes that student wellness is crucial to student learning and achievement, and is thrilled to be a part of a school community that prioritises student well-being.

Ms Niyangoda has been at OSC since 2013. She brings 26 years of experience in managing and leading operations in the areas of Financial Services, Business Analysis, and General Management. She holds a Master’s in Business Administration and is an Associate Member of the Chartered Institute of Management Accountants. Ms Niyangoda has previously worked in the private sector in leading local and international companies such as the John Keells Group, Richard Pieris Group, and Aviva Global Services.

Mr Fernando has been at OSC since 2017 as Head of Facilities and Maintenance. He brings 18 years of engineering experience in mechanical engineering, project management, and operations. He holds a Bachelor of Engineering Degree from the University of Peradeniya, and a Master’s in Business Administration from the University of Colombo. He is an Associate Member of the Institute of Engineers of Sri Lanka. Mr Fernando has previously worked for multinational companies in the sustainable energy sector, and in the apparel sector in leading local and international companies such as Kramski and Brandix.

Mr Nathaniels has served at OSC since 2019. He served in the Sri Lanka Air Force for 23 years and holds a Master’s Degree in Management. Mr Nathaniels has previously worked as the Head of Security for the National Development Bank (NDB) for 10 years and as the Administration Manager of Janashakthi Insurance for nearly two years.

Ms de Silva joined OSC as Director of Admissions in 2021. She has 25 years of experience serving higher education institutions and foreign missions. Originally from Sri Lanka, she has lived in the USA, UK, Italy, and India. She enjoys listening to music and reading in her spare time.