Meet our team!

Marc Habbema CEO
Max Cohen CTO
Jeroen Strijbosch Sales and Marketing
Kasper Peulen Software Engineer and Math Author
Arjeh Cohen Editor
Vijay Sharma Partner
Sieuwert van Otterloo Advisor
Ernst van Eijk Math Author
Martina Mori Marketing and Communications Intern
Simone Bakker Software Engineering Intern
Max Coraglia Sales Intern
You? See our openings below!


SOWISO is a edtech company from Amsterdam. We have developed a learning environment for mathematics and science and accompanying digital higher education math courses.

We're looking for people to join our team!

Full stack software developer To top

We're looking for a software developer to join our team! Ideally, you're also able to do some DevOps.

SOWISO is a flat and informal organization. You will immediately get a lot of responsibility and trust. Therefore, we expect you to be able to work independently, but also to be a team player.

You'll work with PHP (MVC), MySQL and JQuery, but also expect to see Linux/bash, AWS, CI (Jenkins, GitLab), Puppet, webpack, etc.

Would you like to join us in creating our interactive software? Does it excite you to be a key player in developing our online learning platform? And are you ready to join a small company? Then send us your CV with a cover letter to: with subject 'software developer'.


  • Minimal college graduate degree in computer science, artificial intelligence or something alike.
  • You either just graduated or you have a couple of years of working experience.
  • You master or at least know:
    • PHP and/or Java (OO)
    • Javascript / JQuery
    • (My)SQL
    • command line Linux (the more you love this, the better :-)
  • You speak either Dutch, English or both.
  • You're flexible.
  • Collegiality is important to you (you'll be joining a small team).
  • You're motivated to help the company grow.

We offer

  • A unique chance to start at a young and ambitious company.
  • Space to grow along with the company.
  • The possibility to join our employee profit sharing plan.
  • An open and informal working environment.
  • A way to shape the future of education.

Authors To top

SOWISO is a digital publisher. We develop turn-key e-learning courses, that are used in higher education institutions worldwide. To help us create these courses, we are always looking for (free-lance) authors in the field of Mathematics, Statistics and Physics. Multiple forms of compensation are possible.

Experience with education and or e-learning is preferred. If you know what LaTeX is and/or have worked with Computer Algebra Systems, that is even better!

Interested? Send us your CV with a cover letter: with subject 'author'.

SOWISO is looking for interns

Internship for Marketing / Communication To top

Your Profile

  • You are studying Marketing / Communication / PR, University- or HBO level.
  • You speak English and preferably Dutch as well. Any extra languages are a plus!
  • You don’t have to like mathematics, but you’re creative, analytical and you like to take initiative.
  • Adequate skills with a GameCube controller


We Offer

  • A lot of responsibilities, right from the start. Apart from a supporting role, you will be given your own project to develop and execute.
  • A great environment to learn and develop yourself personally and professionally, in a dynamic organisation in which you will play an important role. You will constantly be in close contact with other employees and company management.
  • A monthly internship compensation.
  • The possibility of a part-time position at our company after your internship
  • Everything you expect from a tech company: a sound system blasting productivity-enhancing music, a Nintendo GameCube and all you can eat noodles.

Would you like to talk about doing your internship at SOWISO? Send us your CV with a cover letter to: with subject ‘Marketing Internship'. In your letter, we’d love to hear about your expectations of this internship and what you would like to learn.

Internships from different studies To top

SOWISO loves interns! In a professional way, that is. You can join our small, but growing, team in Amsterdam for your internship! Many of our interns stay for a part-time job afterwards.

Your Profile

  • You are studying Information Technology, Mathematics, Artificial Intelligence or something alike. University- or HBO level.
  • We are also looking for Marketing / Communication / PR interns, again University- or HBO level. (see above)
  • You speak either Dutch or English and preferably both.
  • If you like Mathematics, that’s nice. But it is definitely not a must.
  • We usually have interesting projects for interns on the shelf. Drop us a mail if you're interested in what projects are on the shelf today!

We offer

  • A lot of responsibilities, right from the start.
  • Your own project.
  • A great environment to learn, because you are in close contact with other employees and management of the company.
  • A monthly internship compensation.
  • A Nintendo Gamecube with Super Mario Kart Double Dash.
  • All you can eat noodle-soup.

Would you like to talk about doing your internship at SOWISO? Send us your CV with a cover letter to: with subject ‘Internship'.

In your letter, we’d love to hear about what you would like to learn.