Become our new Senior Front-End JavaScript Engineer

Merelbeke, Belgium

Senior Front-End JavaScript Engineer

We’re a SaaS scale-up based in Merelbeke and New York City. We’ve been recently selected by Deloitte as one of the fastest-growing tech companies in Belgium.

Whenever you watch a video ad on the Web, there’s a good chance that our technology is in there. We specialize in optimizing the delivery of those ads: we plug in tech from our customers, such as fraud detection or visual overlays, and while we’re at it, we also make the ad load faster.

We’re a group of individuals that shoots for the stars. Everyone at Zentrick contributes to the success of our cutting-edge technology. In return, we provide a friendly atmosphere where our international team can learn fast and exchange knowledge. We like each other, so at least once a month we do something fun together!

About You

As a senior front-end engineer, you’ll primarily co-author our video ad runtime. That means that the fruit of your labor will run on tens of millions of devices every single day, on lots of browsers and Web sites that you probably haven’t even heard of. On top of that, we’re busy building out an entirely new front-end product.

We like to use industry-standard tools such as React, Babel, Yarn, and Webpack. However, in the fast-paced JavaScript ecosystem, we’re also always eager to try out new stuff. We’re looking at you to bring that to our attention, or even to build it yourself if the opportunity arises.

Because our customers often turn to us to solve their most complex challenges, it helps to be a problem solver with a solid understanding of software engineering. From experience, we know a Master’s degree to be a great starting point.

We’re committed to delivering high quality through agile development. If you’ve already done pair programming, code reviews, and daily stand-ups, you’ll probably fit right in.

We’re looking for a team player who isn’t afraid to express their opinion. It’s through the continuous exchange of ideas and the occasional constructive discussion that we usually reach the best decisions for our product, our customers, and our team.

Finally, we pride ourselves on our excellent relationship with our customer’s engineering team. Maintaining that relationship is a big part of the job, through frequent conversations and by going the extra mile to truly understand the customer’s needs.


We know we’re asking a lot, so we’re also giving a lot back. More precisely:

  • a competitive wage;
  • a generous vacation schedule;
  • flexible working hours;
  • half a day per week for personal development;
  • a personalized growth plan;
  • group insurance;
  • hospitalization insurance;
  • meal vouchers;
  • eco vouchers;
  • compensation for public transportation and biking;
  • extras tailored to your preference.


Sounds like you? Don’t wait too long, send your resume to

Apply now