Staff
2024-2025 SY
The GSIS community prides itself in the diverse background of its faculty and staff. The majority of the teaching faculty hail from North America (70%) and Oceania (9%). The remaining 21% of the faculty hail from all over the globe including Africa, India, Eastern Europe, and South America. The teachers at GSIS come with a wide range of experiences and expertise to enrich the learning environment for the students.
Administrator
Administrator
Mr. Jeremy Thomas
Secondary School Principal
Ms. Jenny Kim
Secondary School Assistant Principal/DP Coordinator
Dr. Scott Wigenton
MYP Coordinatior/MYP/DP Physics
Dr. Jeannie Sung
Elementary School Principal
Ms. Gillian Png
Elementary School Assistant Principal/PYP Coordinator
Mr. Soung Bok Cho
Director of Development
Mr. Nicholas Schirmer
Director of Innovation
Elementary School
Primary Years Program Administration
Dr. Jeannie Sung
Elementary School Principal
Ms. Gillian Png
Elementary School Assistant Principal/PYP Coordinator
Junior-Kindergarten
Mr. Mark Yu
Junior-Kindergarten
Ms. Sojung Lee
Junior-Kindergarten Teacher Assistant
Pre-Kindergarten
Ms. Jacie Yoder
Pre-Kindergarten
Ms. Jamie Suh
Pre-Kindergarten Teacher Assistant
Kindergarten
Ms. Liel Kang
Kindergarten
Ms. Lindsay Park
Kindergarten Teacher Assistant
Grade 1
Ms. Karen Courliss
Grade 1C
Ms. Esther Son
Grade 1S
Ms. Young Ju Oh
Grade 1C Teacher Assistant
Ms. Sung Ye Ryoo
Grade 1S Teacher Assistant
Grade 2
Ms. Kathleen Little
Grade 2L
Ms. Rebecca Mayer
Grade 2M
Ms. Ok Hee Kim
Grade 2L Teacher Assistant
Ms. Sarah Jin
Grade 2M Teacher Assistant
Grade 3
Mr. Henry Laygo
Grade 3L
Mr. Robert Welch
Grade 3W
Ms. Lennah Kim
Grade 3 Teacher Assistant
Grade 4
Ms. Jenny Ahn
Grade 4A
Mr. Timothy Courliss
Grade 4C
Ms. Soobin Hwang
Grade 4/5 Teacher Assistant
Grade 5
Mr. Ryan Mayer
Grade 5M
Ms. Sheila Anne D'souza
Grade 5D
Specials
Ms. Seolha Park
PYP Korean Advanced
Ms. Seungmin Lee
PYP Korean Intermidiate
Ms. Karina Wiyata
PYP Performing Arts
Mr. Minha Ha
Elementary Student Life Minister/Bible
Ms. Miriam Lee
PYP Visual Arts
Mr. Marcio Alves
PYP Physical Education
Secondary School
MYP & DP Secondary Administration
Mr. Jeremy Thomas
Secondary School Principal
Ms. Jenny Kim
Secondary School Assistant Principal/DP Coordinator
Dr. Scott Wigenton
MYP Coordinatior/MYP/DP Physics
Group 1 Teachers - Language and Literature
Ms. Amy Evans
MYP English & Literature
Mr. Sean Matthew Fox
MYP/DP English & Literature
Ms. Sung Hee Lee
MYP/DP Japanese
Ms. Sook Hyun Lee
MYP/DP Korean Language & Literature/Korean Language Acquisition
Ms. Oneyda Sandoval-Varela
MYP/DP English, DP Psychology & IBMYP Service As Action Coordinator
Ms. Min Hee Shim
MYP/DP Korean
Mr. Matthew Kloosterman
MYP/DP English Language & Literature
Mr. Elias Torres Jr
DP English Language & Literature/TOK
Ms. Young Ah Yoon
MYP/DP Korean Language & Literature/Korean Language Acquisition/Alumni Teacher Liaison
Group 2 Teachers - Language Acquisition
Ms. Shu Fen Chang
MYP Mandarin
Ms. Elvira Marciano
MYP Spanish
Ms. Shao-Hsien Kuang
MYP/DP Mandarin
Ms. Zulving Franco
MYP/DP Spanish
Group 3 Teachers - Individuals and Societies
Ms. Alyssa Muus
MYP Individuals & Societies /IBMYP PP Coordinator
Ms. Jenny Ahn
DP Business Management & DP Economics
Mr. Dennis Dow
MYP/DP History & DP Global Politics
Ms. Pamela Wright
MYP I&S/DP Business Management
Group 4 Teachers - Sciences
Ms. Stella Kim
MYP Science & DP Environmental Science
Ms. Joanna Kim
MYP Science
Ms. Katherine Porter
MYP/DP Biology
Dr. David Villarreal
MYP/DP Science/Chemistry
Ms. Du Ri Song
Teacher Assistant (Science Lab Technician)
Group 5 Teachers - Design Technology
Mr. Idowu Solomon Balogun
MYP Design Tech
Ms. Sally Kim
MYP Design Tech
Mr. Mahendra Singh
DP Computer Science
Group 6 Teachers - Mathematics
Mr. Andrew Pae
MYP/DP Mathematics
Ms. Yeji Kloosteman
MYP Mathematics
Mr. Mark Rosario
MYP Mathematics
Ms. Yiesun Lee Kim
MYP/DP Mathematics
Ms. Cindy Choi
MYP/DP Mathematics & Choir Director
Group 7 Teachers - The Arts
Ms. Hana Na
MYP Visual Arts
Mr. Connor McMonagle
MYP/DP Music & Band Conductor
Ms. Esther Machileka
MYP/DP Drama & Theater
Mr. Chan Yang Park
MYP/DP Music & Strings
Ms. Risa Kim
MYP/DP Visual Arts
Ms. Katelyn Park
MYP/DP Visual Art & MYP Design Technology
Group 8 Physical Education Teachers
Mr. John Blanchard
Athletics Director
Mr. Matt Evans
MYP Physical & Health Education
Ms. Rosario Mary Jesudoss
MYP Physical & Health Education
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Mr. Shanmugasundaram Marimuthu
MYP Physical & Health Education/TA-DP Study Hall
Group 9 Bible Teachers
Mr. Jonathan Kwon
Secondary Bible
Mr. David Lee
Secondary Bible
Mr. Andrew Kim
Secondary Bible
Mr. Do Seong Park
Secondary Bible/On-Call Substitute
Student Support
English Language Learning/Special Educational Needs
Ms. Keran Fynn
PYP EAL
Mr. Jim Lantz
PYP EAL
Ms. Jabbie Rosario
PYP EAL
Ms. Juyeon Park
PYP SEN
Ms. Dacyl Gloria
Secondary Special Education
Ms. Susie Kim
MYP English Language Learning Support
Counseling
MS. Sue Chun
PYP Counselor
Mr. David Lee
MYP Counselor
Ms. Sonia Sung Youn Park
College Counselor
Mr. Michael Rhee
College Counselor
Mr. Wynn Collin Arellano
Social & Emotional Counselor/Grade 9-12
Innovation & Technology
Mr. Nicholas Schirmer
Director of Innovation
Mr. Sung Chul Kwon
Manager-IT
Mr. Kevin Sang Kyoung Lee
Staff-IT
Library and Media
Mr. Adam Jantz
PYP Librarian
Ms. Friska Titi Nova
Secondary Librarian/ Media Specialist
Ms. Sandra Kim
Library Assistant
Aquatics
Mr. Ulrich Mullur
Aquatics Director/Instructor/LSS Athletics Coordinator
Mr. Soo Yong Kim
Lifeguard - Teacher Assistant
Ms. Cintia de Siqueira Cassa Lope
Teacher Assistant /Aquatics
School Health
Ms. Ann Kil
School Nurse
Substitute Teachers
Ms. Kyenam Chang
Substitute Teacher
Ms. A Young Cho
Substitute Teacher
Ms. Kangim Choi
Substitute Teacher
School Support
Administration Office
Academic Support
Ms. Helen Jang
Team Manager
Ms. Chelsey Da Eun Kim
Deputy General Manager-Secondary School
Ms. Kate Kim
Deputy General Manager-Elementary School
Ms. Ha Young Maeng
Manager- Counseling & Registar
Ms. Cindy Hong
Manager-Secondary School library
Admissions & School Marketing
Mr. Andrew Hyun Woo Ahn
Senior Team Manager
Mr. Sung Chul Kwon
Deputy General Manager-IT
Mr. Joey Beom Koo Kim
Manager-Admissions
Ms. Amanda Hyang Ki Lee
Assistant Manager
-Admissions & Head of School's Administrative Assistant
Mr. Kevin Sang Kyoung Lee
Staff-IT
Human Resources
Mr. Chris Kyoung Soo Hwang
Team Manager
Ms. Grace You
Assistant Manager- HR & Head of School of Academic Affairs Administrative Assistant
Mr. Han Kil Kim
Junior Staff
General Affairs & Purchasing
Ms. Karen Jieun An
Team Manager
Mr. Jay Jae Min Kim
Deputy General Manager-Housing Coordinator
Mr. Hong Yeon Hwang
Deputy General Manager-School Bus Coordinator
Ms. Sophie Sun Young Yeom
Deputy General Manager-Purchasing
Ms. Min Jung Kim
Staff-Receptionist
Finance
Mr. Hyeong Jun Shim
Team Manager
Mr. Huey Hoo Jung Lee
Deputy General Manager
Facilities
Mr. Hong Gu Yeo
Team Manager
Mr. In Su Jung
Manager
