Senior Leadership Team
School Management
Ursula Voswinkel
Head of German International School
Work experience and professional focus:
Ms. Voswinkel brings more than 20 years of experience in education and school leadership, most recently serving as Senior Principal (Oberstudiendirektorin) at the Robert-Schuman Vocational School in Essen. Throughout her career, she has successfully led school development initiatives, curriculum innovation, quality assurance programmes and digital transformation projects. In addition, she brings valuable experience from the private sector, connecting GESS to strong corporate networks and directly preparing our students for global career pathways.
Joram Hutchins
Head of European International (IB) School
Education:
- Master of Education (MEd), University of Tasmania
- Global education and leadership
Work experience and professional focus:
With almost twenty years of experience working as an educator in Singapore, Joram has been a member of the GESS faculty since 2009 and has held various positions before becoming the Academic Director in February 2022. He has overseen the school's successful reaccreditation with the International Baccalaureate Organisation (IB) and the Council of International Schools (CIS). Joram works closely with highly skilled colleagues to ensure effective staff recruitment, timetable, educational technology, professional development, child safeguarding, library, sports, and arts are developed across the school. His focus lies in improving teaching and learning at GESS to achieve the school’s strategic plan and become one of the leading educational institutions in Singapore.
Katie Bradley
Interim Chief Administrative Officer (CAO)
Education:
- Master in Human Resource Management, De Montfort University, Leicester, UK
- BA Hons Wirtschaft und Geografie, Nottingham Trent University, UK
Start year at GESS:
2024
N. N.
Chief Executive Officer (CEO)
Work experience and professional focus:
Ms. Voswinkel brings more than 20 years of experience in education and school leadership, most recently serving as Senior Principal (Oberstudiendirektorin) at the Robert-Schuman Vocational School in Essen. Throughout her career, she has successfully led school development initiatives, curriculum innovation, quality assurance programmes and digital transformation projects. In addition, she brings valuable experience from the private sector, connecting GESS to strong corporate networks and directly preparing our students for global career pathways.
Education:
- Master of Education (MEd), University of Tasmania
- Global education and leadership
Work experience and professional focus:
With almost twenty years of experience working as an educator in Singapore, Joram has been a member of the GESS faculty since 2009 and has held various positions before becoming the Academic Director in February 2022. He has overseen the school's successful reaccreditation with the International Baccalaureate Organisation (IB) and the Council of International Schools (CIS). Joram works closely with highly skilled colleagues to ensure effective staff recruitment, timetable, educational technology, professional development, child safeguarding, library, sports, and arts are developed across the school. His focus lies in improving teaching and learning at GESS to achieve the school’s strategic plan and become one of the leading educational institutions in Singapore.
Education:
- Master in Human Resource Management, De Montfort University, Leicester, UK
- BA Hons Wirtschaft und Geografie, Nottingham Trent University, UK
Start year at GESS:
2024
Educational Leadership Team
Dr Anna Ciezczyk
Director of Preschool
Education:
Doctor of Education, National Institute of Education, NTU, Singapore
Master of Science in Administration, Leadership and Management, Walden University, USA
Bachelor of Education, UMCS, Poland
Start year at GESS:
2025
Krissy Holland
Director of Primary School, European Section
Education:
Bachelor of Education Training, Dunedin College of Education
Start year at GESS:
2017
Travis Klump
Director of Middle School, European Section
Education:
- Master of Arts in Educational Leadership, Walden University
- Bachelor of Arts in Elementary Education with a minor in Reading, Indiana Wesleyan University
Start year at GESS:
2024
Claudia Dicken
Director of High School, European Section
Education:
- Second state examination, University of Tubinga/Germany
- Studies of English and Spanish Literature, Linguistics, Didactics, Methodology and Education
Start year at GESS:
2018
Education:
Doctor of Education, National Institute of Education, NTU, Singapore
Master of Science in Administration, Leadership and Management, Walden University, USA
Bachelor of Education, UMCS, Poland
Start year at GESS:
2025
Education:
Bachelor of Education Training, Dunedin College of Education
Start year at GESS:
2017
Education:
- Master of Arts in Educational Leadership, Walden University
- Bachelor of Arts in Elementary Education with a minor in Reading, Indiana Wesleyan University
Start year at GESS:
2024
Education:
- Second state examination, University of Tubinga/Germany
- Studies of English and Spanish Literature, Linguistics, Didactics, Methodology and Education
Start year at GESS:
2018
René Behrendt
Director of Primary School, German Section
Education:
- Second state examination, Johann Wolfgang Goethe University, Frankfurt/Germany
- Study of the Magisterium in primary school
Start year at GESS:
2015
Stephan Spieker
Director of Middle School, German Section
Education:
- Bachelor of Education, University of Paderborn, Paderborn, NRW, Germany
2011
Successfully completed the First State Examination for the teaching profession (GHRGe).
Studies in German, History, and subject didactics in Mathematics.
Previously studied Primary School Education with the subjects German, Mathematics, and Physical Education.
- Master of Education, Teacher Training College Kleve (Studienseminar Kleve), Kleve, NRW, Germany
2013
Traineeship at Hauptschule Kleve-Kellen.
Successfully completed the Second State Examination for the teaching profession with the subjects German, History, and Politics.
Christiane Kuebler
Director of High School, German Section
Education:
- State Examination, Technical University Darmstadt/Germany
- Biology, Chemistry
Start year at GESS:
2014
John Zobrist
Director of Educational Programmes
Education:
- Bachelor in Education, first class with honours, Secondary Education with Design and Technology specialism, Sheffield Hallam University, UK
- Diploma in Leadership in Education (Faculty of Education and Institute of Educational Research) The Chinese University of Hong Kong
Start year at GESS:
2023
Education:
- Second state examination, Johann Wolfgang Goethe University, Frankfurt/Germany
- Study of the Magisterium in primary school
Start year at GESS:
2015
Education:
- Bachelor of Education, University of Paderborn, Paderborn, NRW, Germany
2011
Successfully completed the First State Examination for the teaching profession (GHRGe).
Studies in German, History, and subject didactics in Mathematics.
Previously studied Primary School Education with the subjects German, Mathematics, and Physical Education.
- Master of Education, Teacher Training College Kleve (Studienseminar Kleve), Kleve, NRW, Germany
2013
Traineeship at Hauptschule Kleve-Kellen.
Successfully completed the Second State Examination for the teaching profession with the subjects German, History, and Politics.
Education:
- State Examination, Technical University Darmstadt/Germany
- Biology, Chemistry
Start year at GESS:
2014
Education:
- Bachelor in Education, first class with honours, Secondary Education with Design and Technology specialism, Sheffield Hallam University, UK
- Diploma in Leadership in Education (Faculty of Education and Institute of Educational Research) The Chinese University of Hong Kong
Start year at GESS:
2023
Administrative Leadership Team
Mike Kewelar
Director of Technology
Education:
Professional degree as Administrative Officer in public service, Study Institute for Municipal Administration in Oldenburg/Germany
Start year at GESS:
2020
Valerie Zhao
Director of Finance
Education:
Master in Finance, Singapore University of Social Science
Start year at GESS:
2019
Katie Bradley
Director of Human Resources
Education:
- Master in Human Resource Management, De Montfort University, Leicester, UK
- BA Hons Wirtschaft und Geografie, Nottingham Trent University, UK
Start year at GESS:
2024
Eve Rogove
Director of Student Recruitment
Education:
Executive MBA, The University of Chicago Booth School of Business, USA
Bachelor of Arts - Dean’s List Honoree, University of Michigan, USA
Start year at GESS:
2025
Education:
Professional degree as Administrative Officer in public service, Study Institute for Municipal Administration in Oldenburg/Germany
Start year at GESS:
2020
Education:
Master in Finance, Singapore University of Social Science
Start year at GESS:
2019
Education:
- Master in Human Resource Management, De Montfort University, Leicester, UK
- BA Hons Wirtschaft und Geografie, Nottingham Trent University, UK
Start year at GESS:
2024
Education:
Executive MBA, The University of Chicago Booth School of Business, USA
Bachelor of Arts - Dean’s List Honoree, University of Michigan, USA
Start year at GESS:
2025
Melanie Simon
Director of Operations and Customer Experience
Education:
-
Bachelor’s Degree in Nursing, St. Julienne, Liège (Belgium)
-
Teaching Qualification, Eupen (Belgium)
-
Leadership Training and Personal Coaching, Singapore
At GESS since:
2016
Education:
-
Bachelor’s Degree in Nursing, St. Julienne, Liège (Belgium)
-
Teaching Qualification, Eupen (Belgium)
-
Leadership Training and Personal Coaching, Singapore
At GESS since:
2016
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