Meet our Faculty & Staff

Caring, Montessori-trained educators and dedicated support staff who help every child flourish.

School Leadership

Nathasassi Warittanadejcho (AMI)

Executive Director, Founder & Licensee

Khru Air founded Chiang Mai Montessori in 2010 with a clear and enduring vision: to create a school where children are deeply respected, supported in their natural development, and inspired to grow into confident, capable adults prepared for an ever-changing world. Grounded in the principles of the Association Montessori Internationale (AMI), her approach places the needs of the child at the heart of every decision. Her lifelong commitment to education is guided by the belief that schools should be nurturing environments—not just for academic growth, but for the development of independence, resilience, and joy in learning. This vision continues to shape the direction of CMM today. After more than a decade of growth, including new initiatives such as the WOWS Nature Learning Center and the creation of a successful football academy, Esara FC Evolution, CMM remains closely connected to the community in which it was founded. Khru Air continues to be actively involved—supporting staff, welcoming new families, and guiding the school’s evolution—while also focusing on new ways the school can serve children and families into the future.

Soraya Allmark

School Director and Safeguarding Lead

Soraya Allmark (Khru Mod) has built a distinguished career in education spanning more than 25 years, with leadership experience across International and Thai schools in Chiang Mai. Soraya’s leadership journey brings her back to Chiang Mai Montessori International School, where she guides academic programs, coordinates staff, and supports international communities. She has also held senior roles at international kindergartens and prominent Thai schools, where she progressed from homeroom teacher to Head of the English Special Programme. Her academic background includes a Master of Education in Administration of Education from North Chiang Mai University, as well as Master’s and Bachelor’s Degrees in Elementary Education from Chiang Mai University. Khru Mod is widely recognised for her organisational skills, her ability to connect across cultures, and her creative approach to school development. Fluent in Thai and English, she brings strong communication, administrative expertise, and a passion for building supportive learning environments.

Narupon Wild (Coach Naz)

Director of Football, Partnerships

Naz brings 13 years of professional football experience across three continents, giving him a deep understanding of the game at every level. His career began in the Netherlands and led him to Thailand’s Thai League 1 and Malaysia’s Super League, representing nine different clubs along the way. From youth football to the professional ranks, he has experienced promotions, relegations, and championship victories, gaining invaluable insight into effective club management and the ability to adapt to diverse football cultures. At school, Naz is a member of the Board of Directors, where he contributes fresh perspectives and constructive ideas to support systems building and long-term development. Energetic and forward-looking, he leads from the front with confidence but is equally ready to stand firm at the back, offering steady support whenever it is needed. His presence is both dynamic and dependable, making him a valued leader on and off the field.

Weiwei Lyu (Vivian)

Admissions and Communications Officer

Vivian began her teaching career in 2005 after graduating from Teachers College and has been part of the Chiang Mai Montessori community for over five years. In her role as Admissions and Communications Officer, she guides families through the Admissions and Communications Officer process, leading school tours and making sure every new parent feels welcomed and supported. With her fluency in both Chinese and English, she plays a particularly important role in supporting our Chinese families, offering a bridge across cultures and ensuring smooth communication. With her energy and positive outlook, Vivian brings warmth and encouragement to those around her, contributing to the friendly, welcoming atmosphere that defines the school. With her warm personality and dedication, she is always ready to lend a helping hand to our school community!

Satid Keunwang (Neung)

Facilities Director, Safeguarding

Neung has been part of the school community for many years and now serves as Facilities Manager. In this role, he takes a quality control approach to maintaining a safe, beautiful, and well-organized environment for children, staff, and families. He is especially focused on ensuring the smooth flow of traffic and movement around the school, helping to create a safe and welcoming campus for all. Outside of facilities, Neung brings his passion for sport and teamwork into the community. A keen footballer, he plays regularly with the adult team alongside Coach Naz, Coach Phong, and other parents. As a qualified sports teacher, he also enjoys engaging with children through play and often takes a leading role in school events, combining his professional skills with his enthusiasm for active, healthy living.

Eugene Sheehy

Academic Operations & Pastoral Development Manager

Eugene joins Esara International School as the Academic Operations & Pastoral Development Manager, bringing international teaching experience and a decade of NGO leadership supporting cross-cultural teams across Southeast Asia and the Middle East. Having taught in Germany, England, China, and Thailand, he values diverse learning environments and approaches his work with emotional intelligence, cultural sensitivity, and a strong commitment to helping people thrive. Eugene holds a PGCE in Secondary Physical Education with Special Educational Needs, UK Qualified Teacher Status, and a Master’s in Leadership and Innovation from the University of York. He is currently completing a counselling degree, strengthening his ability to offer a listening ear and thoughtful guidance to students, staff, and families.
Before returning to school leadership, Eugene served as Operations Director and later Executive Director for a humanitarian organisation equipping workers across these regions, shaping his relational and community-focused approach to education.
At Esara, Eugene supports Middle School development, teaches selected classes, and strengthens pastoral care across the school community. He also contributes to outreach through FC Evolution, supporting children in accessing education for a better future. Chiang Mai is home for Eugene, his wife, and their two children, and he is energised by Esara’s commitment to creativity, care, and purposeful learning—an environment where every child is supported to grow into their best future.