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Senior School Teachers

In the 2022-2023 Academic Year, TSIS continues to have one of the best qualified and most culturally diverse staff our school has seen in its history! Our teachers have IGCSE or A Level teaching experience. They have been recruited by ISS from all around the world specifically to work at TSIS Bangkok.


Mr. Tom


Deputy Principal

Mr. Tom is from the UK and teaches English for Year 8-9 and IGCSE students.

Prior to moving to TSIS, Mr. Tom taught English literature and language both in the UK and Thailand. Mr. Tom continues to use his qualifications and experience to modernise our Senior School's English curriculum to ensure that our students are equipped with the best skills to enter the international workplace after graduating from TSIS.


Mr. Paul




Mr. Paul originates from London, England.  After 15-years working with children and adults as a Social Worker, he continued his study to become a secondary school Mathematics teacher. Mr. Paul has over 20 years of IGCSE and A-Level teaching experience.


Mr. Askarbek


Year 11 Homeroom Tutor

Mr. Askarbek has years of IGCSE and A-Level Mathematics teaching experience. Before joining TSIS in 2019, he taught at the President's first school in Astana, a CIS accredited school. With his keen focus on professional growth, Mr. Askarbek practices innovative teaching methods to ensure that students have an in-depth knowledge and understanding of challenging Mathematics concepts. He has a strong track- record of student success in Cambridge examinations and competitively in international Mathematics olympiads.


Mr. Richard




Mr. Richard holds a First-Class BSc (Hons) degree in Physics from the UK and is teaching IGCSE and A-Level Physics at our Senior School. Mr. Richard is an experienced, adaptable and dedicated Physics teacher with a passion for providing engaging lessons which help students to achieve their full potential.


Mr. Denis


Year 10 Homeroom Tutor

Mr. Denis has a Bachelor of Science Degree (Honours) in Secondary Education from Uganda and a Masters Degree in Materials Chemistry from Lewis College of Science and Letters in the USA.

He specialises in IGCSE and A Level Chemistry teaching and is a certified Google educator. He believes students best learn through practical experiences and he prepares them to work cooperatively in a global, technological society. He emphasises critical thinking and problem solving, using chemistry content to develop good evidence-based reasoning and communication skills.


Mr. Yerlan


Year 12 Homeroom Tutor

Mr. Yerlan has teaching qualifications from Kazakshan and England. He also taught at schools in both of these countries, where he specialised in teaching iGCSE and A Level Biology. He has also prepared students for IELTS, APTIS, and SAT (Biology, Chemistry and Reasoning). Mr. Yerlan is a certified trainer of the 'NXpIorers' programme developed by Shell. The programme is intended to help 14-19 year old students develop complex and creative thinking skills which will enable them to become positive agents for change on global issues.

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Mr. Kyle

Year 7 Middle School (Core Subjects)

Year 7 Homeroom Tutor

Mr. Kyle comes from Leeds, England. After completing his Bachelor of Arts Degree he continued his study to become a qualified teacher, earning a Post Graduate Certificate in Education (PGCE). 


In the years before he joined TSIS, Mr. Kyle had been teaching Key Stage 3 – A Level students at an international school in Krabi, Thailand. The diversity of his experience made him a clear choice to pilot TSIS’ new middle school programme, teaching all of the core subjects to our Year 7 students. 


Mr. Gurwinder




Mr. Gurwinder holds teaching qualifications for History and World Religion. Prior to joining TSIS in 2016, he had taught at schools in India.

Mr. Gurwinder's energy and enthusiasm, together with his passion for teaching and school life, ensure that he forms positive relationships with students. He engages them with lessons which cater for various learning styles.


Ms. Deepa


University Guidance Counsellor 

After completing her first-class degree in Accounts (honours) from one of India's premier universities, Ms. Deepa pursued a Professional Degree in Chartered Accountancy.  

A resident of Thailand for over 15 years, Ms. Deepa has over ten years teaching experience. She specialises in IGCSE and A-level Accounting and Business subjects and is also our University Guidance Counsellor. She prides herself on her ability to build her students' confidence, allowing them to take ownership of their own education.


Ms. Kristine

Economics & Psychology


Prior to joining TSIS, Ms. Kristine taught at schools in Dallas, Texas, USA for 20 years. She has certification and experience teaching Economics, Psychology, Sociology, History, and Geography. She has taught Economics at the AP (Advanced Placement) level for seven years and Psychology at the AP level for 13 years and at the IB level for five years.

With experience teaching students of many different abilities, Ms. Kristine has developed teaching strategies to help students find their own success. 


Mr. Gary

Business Studies & 



Originally from Sydney, Australia, Mr. Gary has had the pleasure of guiding students towards success through his teaching for over two decades. He has taught a combination of IGCSE & A-Level Business & Economics for more than a decade with three students receiving ‘Top in Thailand’ awards from Cambridge International Examinations for A-Level Business. 


Mr. Gary strives to create a passion for business, instilling a ‘can-do’ attitude and mindset for students, where they can practically apply conceptual business principles with confidence.


Ms. Bowornat

Thai Language and Culture

Year 9 Homeroom Tutor

Ms. Bowornrat (Kru Maew') has a great deal of experience teaching learners of various ages in both Thai and international schools. Her love of teaching started when she was young when she realised that she wanted to make a difference in the lives of young people. Kru Maew enjoys teaching Thai language, culture and dance to native and non-native Thai speakers alike. She is proud to deliver lessons which incorporate both new and traditional teaching methods that encourage students to develop and maintain a true appreciation of Thai language and traditional culture, as well as Thai music, art and dance in today's modern society.


Mr. Ranjeet

Punjabi & World Religion 


Mr. Ranjeet has over ten years of teaching experience both in India and Thailand. As well as teaching, Mr. Ranjeet is a passionate writer and director of stage dramas. Mr. Ranjeet is well qualified in both Punjabi language and Sikhism. He plays a very important role in our school, leading regular religious activities for our Sikh students and ensuring that our non-Sikh students and staff have an awareness of the universal values of the Sikh religion. 


Mr. Shailesh

Hindi Teacher & Librarian

IGCSE & A Level Examination Coordinator / School Van Coordinator


Mr. Shailesh is TSIS's longest serving teacher. Originally from India, he has teaching qualifications covering Hindi language, history, social science, psychology and Library and Information Science. Mr. Shailesh recognises that every student has unique ways of learning and enjoys the challenge of providing a learning environment which caters for all students.


As a long-term resident of Thailand, with exceptional administrative skills, Mr. Shailesh is a valued and well-connected member of the TSIS team who contributes to many other aspects of our school which ultimately support students in their learning and development. 

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Ms. Alice


Year 8 Homeroom Tutor


Ms. Alice is from China and holds a Master’s Degree and Teaching Certification in Teaching Chinese to Speakers of Other Languages.


Ms. Alice has taught in several international schools in Bangkok for over 10 years. At TSIS Senior School, she teaches Mandarin to our Key Stage 3 and IGCSE students. 

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Ms. Hajni

Computer Science

Year 13 Homeroom Tutor

Ms. Hajni has many years of Computer Science teaching experience. Originally from Hungary, Ms. Hajni holds a Master’s Degree in Teaching Computer Science. She believes in the importance of continuous professional development, and is currently working towards her PhD degree.

Ms. Hajni is a Google Certified educator and a promoter of the use of open source software in education. Ms. Hajni believes that all students can learn how to code when given the right tools and adequate support.

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Ms. Sage

Computer Science & Art (Middle School)

Ms. Sage joined TSIS with a Bachelor of Science in Computer Science and is continuing to attain her Master's Degree in Information Technology.


Prior to moving to TSIS, Ms. Sage was a college instructor at an institution in the Philippines. She has certificates in Google Workspace, Mobile Development and Graphic Design.


As a young educator, Ms. Sage is passionate about ensuring that students understand the importance of social involvement and computer literacy in their future success.

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Mr. Ryan

PE, Sports & ECAs

Mr. Ryan is passionate about the holistic development potential of Physical Education. He graduated with BA (Hons) Physical Education with Qualified Teacher status (QTS) at the University of Brighton,  England, where he was captain and head coach of men’s and mixed lacrosse teams. During his own schooling, Mr. Ryan played excelled in several sports competitively.


After he graduated, Mr. Ryan taught at schools in England, where he also enjoyed working with EAL learners while he was leading summer programmes at prestigious independent schools. Immediately before joining TSIS, Mr. Ryan taught PE and Health to students at another international school in Bangkok.

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