Medior Front-end Developer

  • Rotterdam
  • Fulltime
  • Bachelor

As a medior Front-End Developer at Coolblue you improve the user-friendliness of our webshop for millions of customers.

Apply now
Developer website Coolblue

Medior Front-end Developer

  • Fulltime
  • Rotterdam
  • Bachelor

How do I become a Medior Front-end Developer at Coolblue?

As a Medior Front-end Developer you work on the user-friendliness of our webshop for millions of customers. You enjoy working with the UX designer to pick up stories. You get energy from coming up with creative solutions and are happy to present this within the team. You are also proud of your work and welcome all feedback. "Want to become a Medior Front-end Developer at Coolblue? Else de Boer explains how to do that. "

You enjoy doing this

  • Improving the user-friendliness of our webshop for millions of customers.
  • Thinking about technical choices, such as our architecture, tools and processes.
  • Keeping an eye on the performance of the webshop and analyze how you can improve it.
  • Colleagues and yourself help through pull requests, code reviewing and pair programming.
  • Making our webshop even a little bit better every day.

This calendar makes you happy

Week 05

  1. MonMonday
  2. TueTuesday
  3. WedWednesday
  4. ThuThursday
  5. FriFriday
    1. Daily stand-up

      Daily stand-up

      Start with team. Short update about your tasks and progress

    2. Developen


      Continue my work on the stories.

    3. Pair Programming

    4. Personal development conversation with Bruno

    5. Processing feedback from stakeholders on new feature

    1. Daily stand-up

    2. Demo Hosting & Deployment

      Demo Hosting & Deployment

      Presentation results last month + upcoming projects.

    3. Developen

    4. Teamlunch


      Celebrating successes together.

    5. Catching up with Yuliya (Developer)

    1. Daily stand-up

    2. Developen

    3. Refinement


      What will the upcoming sprint look like and who will do what.

    4. Watch Pieter update

      Watch Pieter update

      Video-update from Pieter.

    5. Outdoor walk with Fernando

      Outdoor walk with Fernando

      To catch up

    1. Daily stand-up

    2. Developen

    3. Sharing knowlegde with the team

      Sharing knowlegde with the team

      Share all kinds of ideas with each other, so that you get a little better every day.

    4. (Digital) drinking coffee with your buddy

    5. Pair Programming

      Pair Programming

      Coding together

    1. Daily stand-up

    2. Meeting with teamlead

      Meeting with teamlead

      Discussing your personal development.

    3. Retrospective


      What went well last sprint? What could be better next sprint?

    4. Sprint planning

    5. Teamborrel

You recognize yourself in the following

  • You have a BSc or MSc in for example Computer Science. 
  • You have between 3-5 years of experience as a Front end Developer.
  • Strong experience with modern JavaScript (ES2017), HTML, CSS/SCSS, REACT as a framework and composition.
  • Experience with one or more modern JavaScript frameworks.
  • Experience in one or more server side languages such as PHP or C#.
  • Enforce code quality through Test Driven Development and linting.
  • Working in a fast paced Continuous Integration & Deployment environment gets you excited.
  • You’re self-learning, independent, and have excellent problem-solving skills.
  • Working with Scrum/Agile working is second nature to you.
  • You know how Git works.
  • You’re proud of your work and welcome all feedback.
  • You’re fluent in English and have a European passport and/or live in the EU



This is what you’re looking for in a job

  • Money.
  • Over 30 training courses at our own Coolblue University.
  • An awesome workplace. With freshly prepared meals, monthly TGIF drinks, epic Coolblue parties, and an informal, playful office space.
  • 25 leave days. As long as you'll promise to come back.
  • Travel allowance and a retirement plan.
  • An office at the best possible location. It's only a short stumble away from Rotterdam Central Station. Or a 2-minute walk.
  • Relocation assistance, from a to z (Only if you have a European passport or live in EU)
  • Dutch language courses. To help you become a Rotterdammert.
  • An international work environment. With colleagues from places like Belgium, Spain, Australia, Mexico, and Italy.


Like what you see? You can become a Coolbluer, apply now!
  • 1


    Go for it

  • 2


    It's for you

  • 3


    Ready, set, go

  • 4


    Open and shut

  • 5


    Go for the fridge

  • 6


    I do

Want to know more?

  • How does Coolblue adhere to the 1.5-meter rule at work?

    We adhere to the recommendations and guidelines of RIVM and the government, of course. This means that all colleagues from the main office work from home as much as possible. The interviews for your application will also take place via video calls.

    We’d be happy to have you at the office on your first day. So we can drink a cup of coffee and get to know each other a little better. At an appropriate distance, of course.

  • Can I keep developing myself?

    Coolblue University: learning at Coolblue, in a different way.

    With over 30 training courses in our own Coolblue University, you can get a little bit better every day. At Coolblue, we go back to school sometimes. But not by sitting there quietly and just listening. The training courses aren't boring, but interactive. You have to do exercises and have discussions with others. At the Coolblue University, we choose what we want to learn, so we can continue to develop en become real experts. For example, a Delivery Driver needs different training courses than a Customer Service Employe and a starter needs different courses than a manager.

Just contact Else de Boer
Freelancers, employment agencies, and recruitment agencies need not apply.
Else de Boer