Senior Frontend Developer

  • Campus Brussel
  • Senior
  • ExpertiseTechnology
  • Skills
  • EmploymentEmployed
We’ll contact you ASAP

What you'll do

Do you want to develop front-ends of web applications with hundreds of thousands of users?

As a front-end developer at iO in Brussels, you will not work for, but with Belgian and international clients such as BOSA, Brussels Capital Region, Doyen, National Lottery, Lidl, City of Mechelen, European Commission, etc.

You don't just develop websites. Together with your team, you will realize smart, long-term solutions that determine the business of our customers.

You will work in a self-managing Scrum team with architects, designers, back-end developer, business analysts and testers. Sometimes together with your direct colleagues, sometimes with developers from the client and sometimes with colleagues from our office in Bulgaria. In addition to working at our cozy Campus in Brussels, working partly from home or partly at the location of our customers is also possible.

Together with them, you will work on a user experience that is as relevant and personal as possible. So no boss telling you what to do, but taking your responsibility and making decisions with your team. And all this in close cooperation with the customer.

As a Front-end Developer, you constantly have your finger on the pulse of the project, from start to go-live. You are the link between design, interaction, and implementation. By nature, you have an eye for detail. For you, it's all about the big picture. Together with your fellow front-enders, you will take your work to an ever-higher level and stand for the quality we deliver. 

Of course, you have experience as a Front-end Developer. But we also think it's even more important to know who you are. Do you want to share your knowledge and experience with your colleagues? Willingly! Together, you inspire each other to go the extra mile.

Knowledge is the basis of everything you do at iO. That doesn't just mean that you grow by working in small-scale teams on challenging projects. Or that you can shape your personal growth path completely yourself. There are also all kinds of initiatives that you can participate in or that you can organize yourself, such as training courses, conferences, or workshops. In addition, you can optionally be a member of an Expert Group, in which you select innovations and develop proof-of-concepts with colleagues from different backgrounds.

Your qualities and skills as Senior Frontend Developer

  • At least 5 years of experience as a Front-end Developer (this is mandatory).

  • You can work with React, Docker and GraphQL.

  • Knowledge of NextJS 14, React Server, Angular and/or Vue is a plus.

  • You are familiar with TypeScript and JavaScript.

  • You would like to work at/with enterprise organizations.

  • You have a good command of the Dutch/French and English language.

  • You are a team player, communicative and with a great sense of responsibility.

  • You are familiar with accessibility, visual design and UX design.

  • You are curious about your customer's business and proactively think along with the platform.

  • You like to challenge yourself and never stop learning.

People discussing at a table

What’s in it for you

32 vacation days

Based on a 40-hour work week, you’ll have 20 vacation days and 12 compensatory days of leave (reduction of working time).

Mobility & end-of-year bonus

After working at iO for 6 months, you can count on an end-of-year bonus. And in terms of mobility, you can choose from various options, depending on your job or preference.

Hospitalisation insurance

When something unfortunate happens, the last thing you need is the added stress of unexpected costs. That’s why all employees get hospitalisation insurance at Axa.

Hybrid working

A good work-life balance is super important. Together with your team, you’ll decide when and where you work.

Healthy snacks & lunch

At every iO campus, you can grab a healthy snack throughout the day and have a healthy and varied lunch for a small fee.

Personal training budget

Each year, you’ll get a budget of €3,000 to develop yourself, in your profession or as a person, through training, events, or courses.

Celebrating together

If there’s something to celebrate, we know how to party! From time to time, the party team at your campus will organise the best (theme) parties.

Apolline recruiter Campus Brussel

Questions about this position?

Hi! I’m Apolline, Recruiter at iO, and I’m here to answer all your questions. What’s on your mind?
Send an email
or contact me via
+32 33 614 000

Get to know iO

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Your application, step by step

Working together, making an impact and growing: it all starts with the right connection. That's why we'd like to get to know you and want you to get to know your future colleagues too.

  • Woman listening

    Let's get to know each other

    We like to act quickly. If we can sense a match, we'll get in touch soon for a virtual introduction. This way, both you and we can see if there's a good fit.

  • Woman smiling during meeting

    Come say hi

    How can your knowledge, skills and experience shine at iO? During a conversation with your future team lead, we’ll discuss interesting opportunities for you in our blended agency.

  • People brainstorming at a table with papers

    Meet the team

    There are many people here who’d love to meet you! Your potential colleagues will join us at the table. And of course, you'll get a full campus tour.

  • Woman sitting on a ball

    Join the team!

    Are we all excited? Congratulations! Go ahead and sign that contract. Together, we'll discuss the practical details and ensure you have everything you need to get started at iO.

FAQ

iO is a blended agency. Our experts in strategy, technology, data, content, creation, and marketing work in blended teams to create unforgettable brand and customer experiences together.

For some roles, an assesment or business case is part of the application process. If so, we’ll of course inform you during our virtual introduction.

All teams are part of a specific campus, but you’re more than welcome to work on other campuses too. You can discuss with your team when and where you’d like to work.

The fact that iO is a blended agency offers numerous benefits for your career path. You will learn and grow thanks to the vast diversity and expertise of your colleagues and the challenging collaborations with our clients. Moreover, you can shape your future yourself. With our extensive training opportunities, development paths, and personal attention, everything is in place for a thriving career.

Apply now

Ready for an exciting career at iO? Apply using this form or through LinkedIn. We’ll contact you soon.

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