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Wahagn
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Trusted teacher
This teacher has a fast response time and rate, demonstrating a high quality of service to their students.
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Since November 2025
Instructor since November 2025
IGCSE Computer Science (Cambridge) | Experienced International School Teacher | CS/ICT IGCSE, CS/IT A-Level, CS IBDP
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From 20 $ /h
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Hi! I’m Wahagn, a qualified international school teacher with 4+ years teaching Computer Science at IGCSE, A-Level, and IB DP levels. I hold a BSc and MSc in Computer Science from Leiden University and have worked in international schools across Europe. I specialize in helping students understand programming concepts, prepare for exams, and develop problem-solving skills. My lessons are personalized, practical, and focused on student success.
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At student's location :
  • Around Madrid, Spain
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Online from Portugal
About Me
Hi! I’m Wahagn, a qualified international school teacher with 4+ years teaching Computer Science at IGCSE, A-Level, and IB DP levels. I hold a BSc and MSc in Computer Science from Leiden University and have worked in international schools across Europe.
I specialize in helping students understand programming concepts, prepare for exams, and develop problem-solving skills. My lessons are personalized, practical, and focused on student success.
Education
EDUCATION
Leiden University, Leiden — Computer Science and Education
MSc in Computer Science. Obtained qualifications to be a computer science
teacher for lower and upper grades (ages 11-19). Entails one year of Computer
Science subjects and research, followed by an education component.
Leiden University, Leiden — Computer Science
BSc in Computer Science. Analysing and recognizing information structures,
solving (abstract) mathematical problems, management and design of computer
programs.
Experience / Qualifications
EXPERIENCE
St George’s International School, Luxembourg— Teacher
AUG 2024 - AUG 2025
Teaching Computing Year 7-9, Year 10-11 IGCSE Computer Science, Year 13
A-levels Computer Science. (1 year maternity cover)
King’s Oak British International School, Bucharest— Teacher
SEP 2022 - JAN 2024
Teaching Computing Year 6-9, Year 10-11 IGCSE ICT & IGCSE Computer Science,
Year 12-13 AS/A-levels Computer Science & Information Technology.
The International School of the Hague, the Hague — Teacher
SEP 2021 - AUG 2022
Teaching MYP Year 7, 8, 10 and 11 Digital Design, Year 12 and Year 13 IBDP
(Higher Level) Computer Science. (teacher training)
Rijnlands Lyceum Oegstgeest, Oegstgeest — Teacher
SEP 2021 - AUG 2022
Teaching National Curriculum Havo (higher prof. education) Year 12 and Vwo
(pre-university education) Year 12 and 13 Computer Science. (teacher training)
Leiden University, Leiden — Teaching Assistant Machine Learning
FEB 2021 - AUG 2021
Overseeing lab sessions, assisting with lectures, designing and grading the
practical assignments.
The Driving Force, Uithoorn — C++ Engineer
SEP 2019 - AUG 2020
Developing algorithms to plan user’s trips, financial receipt calculation and
generation for partners and clients. Managing the data storage.
Leiden University, Leiden — Teaching Assistant Databases
FEB 2019 - AUG 2019
Overseeing the lab sessions, and designing three lab assignments that counted
for 40% towards the student’s final grade.
Age
Children (7-12 years old)
Teenagers (13-17 years old)
Adults (18-64 years old)
Seniors (65+ years old)
Student level
Beginner
Intermediate
Advanced
Duration
60 minutes
The class is taught in
English
Dutch
Spanish
German
Skills
Availability of a typical week
(GMT -05:00)
New York
at teacher icon
Online via webcam
at home icon
At student's home
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00-04
04-08
08-12
12-16
16-20
20-24
Coding for Kids & Teens (Python, Scratch, Web) | Experienced International School Teacher | 4+ Years teaching in British schools
20 $ /h
Hi! I’m Wahagn, a qualified international school teacher with 4+ years of teaching Computer Science and Computing to 8-18 year old students. I hold a BSc and MSc in Computer Science from Leiden University and have worked in international schools across Europe.

I teach fun, engaging programming classes for absolute beginners and give school support. Students learn logical thinking, problem solving, and creativity.
Read more
Complete STEM Support (Math, Science, Technology) | Experienced International School Teacher | 4+ Years teaching in British schools
26 $ /h
Hi! I’m Wahagn, a qualified international school teacher with 4+ years of teaching Computer Science at IGCSE, A-Level, and IB DP levels. I hold a BSc and MSc in Computer Science from Leiden University and have worked in international schools across Europe.

I help students stay organized, complete homework, understand difficult topics, and build strong study habits in Maths, Science, Physics. My lessons are structured, patient, and adapted to each student's needs.

We work on:

daily homework in STEM subjects

planning & organization

study techniques

confidence building

exam and test preparation

Ideal for students who need structured support from a calm, experienced teacher.
Read more
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Contact Wahagn
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Private lessons
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Gonzalo
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Miguel
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I am a computer science and robotics teacher at a school. I teach classes from children to adults, at different levels (beginner, intermediate and advanced).
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This advanced course is designed for engineering professionals who wish to evolve into strategic leadership roles in information security, such as ISO (Information Security Officer), BISO (Business Information Security Officer) or CISO (Chief Information Security Officer).

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Understand the regulatory framework and international standards such as ISO 27001, PCI DSS, and GDPR.
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Engineers with experience in technical areas of computer security, networks, development or auditing, who seek to make the leap to strategic leadership positions in cybersecurity.

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- Good practices and logical thinking.
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Examining Body Expert: I have extensive experience working with the Cambridge International examining body, having taught and assessed this exact syllabus in international schools for at least seven years.

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