Joël D.-Teacher
Check rate
Experience
Teacher
ProGenius - Private Vocational School Darmstadt
- Mathematics
- IT
- French
Freelancer
Freelancer
- Online tutor for IT courses
- Examiner & lecturer at universities
- Scientific editor
Software Quality Architect
L-One Systems GmbH
- Test automation, program analysis, performance optimization
- Requirements analysis and test strategy design
- Philosophical approaches to software testing and quality assurance
- Organization of the QA knowledge base
Linguistic Data Scientist
L-One Systems GmbH
- Development of an AI-based system to convert data into reports for medical authors
Student assistant
Technical University of Darmstadt
- Institute for Digital Literary Studies
Tutor
Technical University of Darmstadt
- Mathematical basics of theoretical computer science
- Supervision of the math learning center
Math support teacher
Vocational Schools Groß-Gerau
Working student
Telespazio VEGA Germany Ltd.
- IT support and training solutions
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Education, Information Technology, Space Exploration, and Healthcare.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Research and Development, Information Technology, Product Development, and Quality Assurance.
Summary
Dedicated lecturer with many years of experience in adult education and teaching complex topics.
Skills
- Python
- Windows Powershell
- Matlab
- Excel
- R
Languages
Education
Fern University in Hagen
M.A., Philosophy in a European context · Philosophy · Hagen, Germany
Jäger School of Cosmetics Darmstadt
Training as a beautician · Cosmetics · Darmstadt, Germany
Technical University of Darmstadt
M.Sc. Mathematics (interdisciplinary) · Mathematics · Darmstadt, Germany
Certifications & licenses
Writing Therapist
German Institute for Educational and Therapeutic Professions
Technical Writing
Technical Writer HQ
TensorFlow Developer
DeepLearning.AI
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Joël is based in Darmstadt, Germany and prefers 100% remote projects.
Joël speaks the following languages: German (Native), French (Native), English (Advanced), Danish (Elementary).
Joël has at least 11 years of experience. During this time, Joël has worked in at least 8 different roles and for 6 different companies. The average length of individual experience is 1 year and 4 months. Note that Joël may not have shared all experience and actually has more experience.
Based on recent experience, Joël would be well-suited for roles such as: Teacher, Freelancer, Software Quality Architect.
Joël's most recent position is Teacher at ProGenius - Private Vocational School Darmstadt.
In recent years, Joël has worked for ProGenius - Private Vocational School Darmstadt, Freelancer, L-One Systems GmbH, and Technical University of Darmstadt.
Joël is most experienced in industries like Education, Information Technology, and Space Exploration. Joël also has some experience in Healthcare.
Joël is most experienced in business areas like Research and Development, Information Technology, and Product Development. Joël also has some experience in Quality Assurance.
Joël has recently worked in industries like Information Technology, Education, and Healthcare.
Joël has recently worked in business areas like Research and Development, Information Technology, and Product Development.
Joël holds a Master in Philosophy from Fern University in Hagen, a Master in Mathematics from Technical University of Darmstadt and a Bachelor in Mathematics from Technical University of Darmstadt.
Joël has 4 certificates. Among them, these include: Writing Therapist, Technical Writing, ISTQB Certified Tester, and Foundation Level (CTFL).
The availability of Joël needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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