Senior JavaScript Engineer (Front-end)

Apply now

Senior JavaScript Engineer (Front-end)

Full-time · Utrecht, The Netherlands

At Lab Digital, we create digital products for our clients. These are global e-commerce platforms, content websites or high-traffic middleware solutions. All based on cloud native technology, often in combination with headless SaaS products.

We have a passion for technology. We get excited about solving new challenges through an elegant approach with tech solutions that best fits the demand. We do this in multidisciplinary teams working for long-term, mostly international customers.

About the role

Many of the products we develop use React in combination with Next.js. We apply a component library approach and develop in collaboration with UX and design teams.

We have a strong focus on performance, both in consuming data from GraphQL services, and in generating the responses. A good user experience and excellent scores in web vitals / Lighthouse are essential for our field.

We are committed to delivering sustainable and high quality software. This means that we work with TypeScript and write extensive unit and integration tests using Jest and Cypress/Playwright. For the customer and the design team, we also build well documented component libraries with tools such as Storybook. We also have a strong focus on code reusability within, and across projects.

Our work takes place in sprints of 2 to 3 weeks, in teams consisting of (UX) designers, QA specialists, business analysts, solution architects, a scrum master, and a project manager. Within this team you are responsible for delivering high quality software together with the team and the client. For a larger client there are regularly multiple teams active, with teams looking to collaborate with one other.


  • 5+ years of experience developing JavaScript/TypeScript applications with React.

  • Strong communicative skills both verbally and in writing (e.g. ability to deliver technical documentation).
  • You are able to write well-documented components with a clear and consistent API
  • Experience with styling solutions such as Styled Components, Emotion, CSS Modules, SCSS
  • Good knowledge of modern software development techniques (unit/integration testing, CI/CD pipelines, etc).
  • Server side rendering/static generation frameworks such as Next.js, Gatsby and
  • Knowledge of build tooling such as Webpack, ESBuild, Vite and SWC.
Nice to have

  • Experience with building customer facing applications in the e-commerce domain
  • Experience with GraphQL and libraries such as Apollo Client and URQL
  • Experience with cloud applications (AWS/Azure) and Terraform (IaaC)
  • Knowledge of animation with frameworks such as Framer Motion, GSAP

Knowledge sharing

Laptop, headphones and more

Pension plan

€ 4.500 - € 5.750 per month

Flexible hours

25 vacation days

What we offer you

  • Starting salary of at least € 4.500 per month and depending on experience and growth, it can go towards € 5.750.
  • Opportunities to grow in seniority level, which also includes a different salary level.
  • In addition on a yearly basis: 25 vacation days, a favorable pension plan and bonus of one month salary in case of a positive operating result.
  • Hybrid working and flexible hours in consultation with your team
  • No concessions on gear you need to do your job well including laptop, headphones and more.
  • We have strong engineering culture and are active in the Open Source community. Check out our 70+ projects on our GitHub profile and
  • We work for well-known large international organizations.
  • We are a growing company and keep a constant focus on your development, drivers and ambitions. You may work on both personal and professional goals with us through a growth plan.
  • Knowledge sharing through a bi-weekly Javascript meeting and Lab Academy, among other things.

Work should be fun, substantive and also with each other. We like to look at your ambitions together with you and help you you realize them.

"Because we work with innovative technologies and follow new developments closely, there is something new to learn on every project, which makes the work fun, dynamic and challenging."

Mike, Technical Lead

Your colleagues

Our team consist of 80+ colleagues. Curious about who your colleagues will be? Take a look at the profiles of Boris, Mike, Casper & Bram

Boris Besemer

Lead Software Engineer

Mike de Bock

Senior Software Engineer

Casper van Koppenhagen

Digital Consultant

Bram Kaashoek

Senior Software Engineer

Let's talk

Are you the person we are looking for? Apply for this position and we would love to talk to you. Unfortunately, we can't sponsor or transfer visa's right now.

Lab Digital does not work with third parties to fill this position.