New to Sign up now to get your own personalised job matches.

Sign up

New to Sign up now to get your own personalised job matches.

Sign up

Front-End (React) Developer

Job in Rotterdam, the Netherlands

Degree level


Job function


Required languages

English (Fluent)
Dutch (Fluent)

Work experience

2 to 5 years



Find your job faster with a profile

Directly see your job matches and find a job that's perfect for you.

We Are Builders is a startup studio. Together with our Founders Network we turn internally validated concepts into independent SaaS and Marketplace ventures in no more than 18 months. Our studio brings together concept, co-founders, capital and infrastructure. One of the most important parts of our infrastructure is our core-team of experts which consist of two development teams plus supporting roles such as design, ux and finance.

Core team

To further strengthen our core-team we’re looking for several full stack developers who are comfortable working with our chosen technology stack. As an important member of the core- team you’ll mostly work on one of our portfolio companies and be part of the larger We Are Builders development team. Our team takes pride in working together, sharing knowledge and help each other with technical challenges.

Front-End Developer

As a Front-End Developer it is your responsibility to build and maintain our portfolio companies. Our applications are build in React with Flux. In order to keep things readable the Frontend apps are written in ES6, we use Webpack, sass and less. The software communicates with a RESTful API which is also build by your team.


A varied and independent position with plenty of room for personal interpretation in an innovative, professional and growing organization 

  • Salary appropriate to your knowledge and experience (± € 4.000 for expert level)
  • Personal development and compensation plan
  • Flexible working hours, the team works from 6h-9h to 15h-19h 
  • Annual contract with prospect of a permanent contract at the studio or portfolio companies
  • Travel compensation/allowance and 25 holiday days
  • Certification, training and reimbursement of study costs
  • Great office space, next to Rotterdam Central Station
  • The best Friday drinks and quarterly fun company trips


  • Hands-on experience with React, Flux and ES6
  • 2 years proven agile development experience
  • Good communication skills in English and some Dutch would be really nice
  • Believes in user-friendly software and always tries to pursue this in any way
  • Knows to translate designs created in Sketch or Framer to codes
  • Knows that the roadmap is not carved in stone and can accept with the fact that a topic on the roadmap can change it’s priority
  • Experience with version management (git) / release management
  • You don’t keep things bottled up and prefer to talk about things that botter you 


As a developer, you will work closely with our product owner. As soon as it is clear which point on the horizon is up next, you will start working together with the team of designers and backend developers to achieve this.We wrap up each sprint with a review where we demo newly created features to the entire company. Everyone gets the opportunity to give feedback and we determine a strategy on how we roll out the new features to all of our users.

We are looking for someone who feels at home in the changing Frontend development world, someone who wants to help improve the product with us, someone who is responsible for the quality and knows how to guarantee this. You are the person who knows the technical (im)possibilities and someone who follows the trends in software development so that we can offer our users an even better product.


  • Quality-oriented: You can set priorities and set them again without losing sight of the goal
  • Teamwork: Empathic ability to successfully work together towards a common goal
  • Drive: You’re not afraid to take initiative and are driven to implement your own initiative
  • Responsible: You show commitment to your responsibilities
  • Result-oriented: Able to realize actions through cooperation and takes responsibility for the end result

Sounds like you!? Sign up and we will contact you as soon as possible!

Logo We Are Builders
About We Are Builders
to company page

We Are Builders transformeert unieke ideeën in onafhankelijke tech bedrijven door de ervaring en expertises van het core team in te zetten om founders en venture teams te ondersteunen.
Om de groei van de ventures te bevorderen bouwen zij ook aan een eigen team. Zo worden de werkzaamheden van het core team binnen de venture geleidelijk overgenomen, misschien wel door jou?
De ventures waarvoor we momenteel uitdagingen hebben liggen zijn IPS en Influentials.
Bekijk ook:

Venture capital & private equity
Active in 1 country
18 employees
60% men - 40% women
Average age is 27 years

What employees are saying

Tessa van Blaricum

Finance & Control

Tessa van Blaricum

In mijn functie Finance & Control verzorg ik de financiën voor de verschillende ventures. Door de verscheidenheid aan bedrijven zorgt dit ook voor veel afwisseling en uitdaging in mijn werk. Ik vind het fijn dat er veel ruimte is om zelfstandig te werken en tegelijkertijd mijzelf te ontwikkelen.

Adam Skotarczak

Social Media & Content Intern

Adam Skotarczak

As an intern at We Are Builders I’m trying to gain as much experience as possible in many different fields like social media marketing, graphic design and event management. Moreover, the team events and super friendly team itself, make me even more happy to be here.