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Senior JavaScript / React Engineer

One of the most exciting web-based companies in Europe is looking for you.

Over a million monthly website visitors. Hundreds of thousands of active users. International ambitions that we’re turning into reality. We are Colourbox.

We lead Europe in providing visual content to every type of business. Our web platform grants access to millions of photos, videos, and vector illustrations supplied by 35,000+ professional creatives from across the globe. Half a million users rely on our help to buy content for every purpose imaginable. We offer them a frictionless solution with clear pricing on curated material that stays relevant.

At the same time, we help some of Northern Europe’s largest organizations store, structure, and share their content securely with Skyfish, our digital asset management application. Skyfish protects its users' files on secure servers, tags them automatically, and makes teamwork simple with time-limited private links. Additional streaming and gallery services supercharge media exposure. Organizations use Skyfish to simultaneously maximize their security and their work capabilities. We provide an easy-to-use system with constant new features and personable support.

We are looking for a Senior JavaScript / React Engineer interested in working with high-performing web applications based on search algorithms and cloud infrastructure.

You will be part of a strong development team in Denmark, working from either our headquarters in Odense or our satellite office in Copenhagen.

We are in a period of rapid growth and have many exciting and technically challenging projects in the pipeline. The platform you help develop will create a fantastic user experience and convert new visitors into paying customers.

 Job functions

As a Senior JavaScript / React Engineer, you will work closely with product designers, project managers, and Software engineers to create new customer features and integrate new technologies. You will be involved in challenging projects from conceptualization to launch.

 Your Work Will Include:

  • Creating plugins to our new, custom React-based CMS

  • Creating and maintaining React/Redux single-page applications

  • Creating and maintaining node packages

  • Maintaining existing systems and fix bugs on existing projects

  • Creating efficient, reusable front-end components that drive complex web applications

  • Creating and maintaining unit test for project components

  • Collaborate across departments to deliver compelling user-facing products

  • Identify and resolve performance and scalability issues

 Your qualifications

You are open-minded, can see potential and you focus on what is possible. You are not afraid of applying your theoretical background to problems to find new ways of solving problems. We know developers come in all shapes and sizes, but we expect you to at least match the following qualifications to apply:

 Required Qualifications

  • Excellent written and verbal English skills are required

  • 2+ years of experience with React, Redux, and any JavaScript testing framework

  • 5+ years of experience with JavaScript

  • A high degree of comfort in ES6, JSX, CSS, and HTML

  • Experience with Node.js, node.js modules/packages, and webpack

 Preferred Qualifications:

  • BS/MS in Computer Science, Software Engineering, or a related technical field

  • Experience with PHP, jQuery, AngularJS, Material-UI, Bootstrap or PWA

  • Experience with mobile app development in  React Native or Flutter

  • Experience with test-driven development

 What You Can Expect from Colourbox

  • Exciting work on interesting technical challenges

  • A talented, committed, and international team from more than nine countries

  • Competitive salary

  • Pension contribution

  • Company-paid continuous education program

  • A great selection of delicious food prepared daily by our in-house chef!

  • Flexible working hours (our core hours are 9:00 am to 3:00 pm)


If this is you, we want to hear from you! Send us a PDF of your  CV and links to your open-source projects and/or GitHub repositories to with “Senior JavaScript / React Engineer” in the subject line.

If you have any questions, please also email All applications must be submitted in English to be considered.


Odense (Danmark) & København (Danmark)


Snarest muligt 




Jan Christensen


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