Front-end developer for A/B testing

Are you tired of the uncertainty you have as a freelance front-end developer? Or are you working as a front-end developer for a company and thinking of becoming a freelancer to have more freedom but the uncertainty is holding you back? Then this job is for you!

At Dexter Agency you can combine the best of both worlds: the freedom of a freelance existence AND the certainty of a job as an employee. You will work full-time on a variety of projects, but you can choose your hours and work from anywhere in the world. Plus: you’ll have the added security of 24 paid vacation days, support and training when needed, a fixed income and performance bonuses. And you get to work with some pretty awesome people too 🙂

We are a conversion optimization agency specialized in ecommerce. We increase the revenue of our clients by doing research to find out where we can improve their sites and by setting up A/B tests to test the best solutions for the problems we found in the research.

What You’ll Be Doing

  • Together with our conversion optimization consultants, you will play a crucial role in growing the businesses of our clients.
  • You will work on the development of A/B tests for ecommerce sites on a day-to-day basis. These A/B tests help our clients to improve their sites and by doing so to improve their sales and revenue. Winning A/B tests often add hundreds of thousands of dollars in yearly revenue to our clients’ businesses – so your code will have a very tangible and impactful outcome.
  • Manipulate, rearrange, hack existing client website code using JavaScript
  • Conduct technical audits and ensure correct implementation of testing tools
  • Provide technical feasibility and time estimations on A/B test ideas
  • Utilising JavaScript, HTML, JQuery and CSS to build fast, error free tests within our A/B testing tool
  • Carry out thorough QA processes and monitoring of live tests
  • Build strong relationships with our conversion optimization consultants
  • Attend calls with clients or other stakeholders when required (this will only happen occasionally)
  • Collaborate with designers to build test-winning experiences
  • Constantly look to improve our development and QA processes
  • Occasionally: support our own marketing team with development work


  • You’re the best in class when it comes to JavaScript, JQuery, HTML and CSS.
  • You have at least 3 years of front end development experience
  • You have excellent technical problem solving skills
  • You apply best practice coding principles to your work
  • You have experience building responsive websites
  • You have experience working on ecommerce sites.
  • You have experience dealing with cross browser compatibility and CSS best practices
  • You have an understanding of UX principles
  • You are an excellent communicator. This is a remote position, so good, frequent and clear communication is essential.
  • You have a can-do mentality. You don’t see problems, but rather challenges you will overcome. You are self-driven and always want to be the best. In short, you’re a high performer.
  • You are a perfectionist: you have an eye for detail and are able to implement a briefing pixel perfect.
  • Continuous learning and self-improvement are important to you.
  • If you have experience with A/B-testing, that will be considered a huge plus.
  • Google Analytics and Google Tag Manager knowledge is a nice bonus, although not required.
  • You are fluent in English.

We offer

  • A challenging full-time job in an ambitious agency. We have great plans for the next few years and want our team to be diligent in growing together.
  • A flexible working arrangement. You can work remotely from anywhere in the world and choose your own hours.
  • A competitive salary (we will pay you a salary that is competitive for the country you live in).
  • Performance bonuses.
  • We offer a friendly work environment and a chance to meet and interact with people from all over the world.
  • We offer you 24 paid vacation days per year.

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