Data Science, Other
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Dutch, English

About Belsimpel

Who we are

Gomibo Group is the umbrella name for the brands Belsimpel, Gomibo, Verifai, Tulip Assist, and Gomibo SaaS (Software as a Service). Together, they have one mission: to improve accessibility to the digital world for everyone.

Belsimpel was established in 2006 by Jeroen Doorenbos & Jeroen Elkhuizen, who were students at the Rijksuniversiteit of Groningen at the time. The telecom market was a chaotic industry, with a focus on targets instead of the customer. Jeroen and Jeroen decided to change the mobile world by putting the customer first with a platform where you can easily find what suits you best: Belsimpel. Now, they are operating internationally in 30 European countries under the name Gomibo.

What we do

By constantly wanting to improve every aspect, they continually raised the bar in the competitive market. To this day, our innovative drive has not changed. By always thinking about how something can be improved or simplified, we keep evolving and our organisation grows every day. Today, with more than seven hundred colleagues, we work hard every day to provide easy access to the digital world. All the different Gomibo Group brands were also created with this goal in mind.

We now have more than 700 passionate colleagues who are all eager to go that extra mile and embrace change, allowing us to make the digital world accessible to everyone. Problems are solved at the root and the best idea counts, whether it comes from someone working part-time or from someone who has been with Belsimpel for 10 years.

What we can offer
We offer multidisciplinary challenges that require solving complex puzzles using theory from your Econometrics & Operations bachelor’s or master’s degree. As Belsimpel is constantly evolving, you’ll be able to grow within the company. This means you’ll face a steep learning curve and your work will directly impact the entire company.

Love solving complex puzzles every day and want to be part of our winning spirit? Join us as full-time Business Developer or Data Scientist, write your final project at Belsimpel or join us as a part-time colleague during the final phase of your degree to work on smaller projects that bring the future a step closer. For more information, please visit

During my bachelor in econometrics I was looking for a side job, and I started working at Belsimpel as a customer service agent. As my study progressed, I wanted to apply my knowledge in practice. Luckily, Belsimpel offers many opportunities for econometricians! I switched positions within Belsimpel, and joined the Data Driven Marketing team.

With my team I analyze all the views, clicks and sales that come in from our online marketing efforts. With this huge amount of data that is available, I work on projects that are very diverse, and have a lot of impact. Many young, smart people work at Belsimpel, and whenever I do not understand something, my coworkers are happy to help me. This allows me to quickly learn new things and develop skills I already have from my study. I mostly plan my own hours, so I can combine my job with my study. And with (very) many socials, activities, and outings, working at Belsimpel is more fun than I had ever expected from a side job!

Apart from side jobs, it is possible to write a master thesis at Belsimpel for different fields within the EORAS master, and Belsimpel is always looking for econometricians for different full time positions. So if you are looking for an interesting, challenging and fun job next to/ after your studies, I would definitely recommend Belsimpel!

~ Lisa van der Leij

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