This website uses cookies to ensure you get the best experience.

DENYS NV and our selected partners use cookies and similar technologies (together “cookies”) that are necessary to present this website, and to ensure you get the best experience of it. If you consent to it, we will also use cookies for analytics and marketing purposes.

See our Cookie Policy to read more about the cookies we set.

You can withdraw and manage your consent at any time, by clicking “Manage cookies” at the bottom of each website page.

Select which cookies you accept

On this site, we always set cookies that are strictly necessary, meaning they are necessary for the site to function properly.

If you consent to it, we will also set other types of cookies. You can provide or withdraw your consent to the different types of cookies using the toggles below. You can change or withdraw your consent at any time, by clicking the link “Manage Cookies”, that is always available at the bottom of the site.

To learn more about what the different types of cookies do, how your data is used when they are set etc, see our Cookie Policy.

These cookies are necessary to make the site work properly, and are always set when you visit the site.

Vendors Teamtailor

These cookies collect information to help us understand how the site is being used.

Vendors Teamtailor

These cookies are used to make advertising messages more relevant to you. In some cases, they also deliver additional functions on the site.

Vendors Youtube, Vimeo, Linkedin, Google
DENYS NV career site
Join the Do-Dreamers

Young Professionals at Denys

Are you looking for an internship, a student job or a first working experience? Read more about our opportunities!

Ready to build your future?

At Denys, we offer Young Professional internships, student jobs, and first career opportunities that go far beyond observation. You’ll contribute, create, and grow – right alongside the people shaping tomorrow.

We’re looking for ambitious Young Professionals ready to roll up their sleeves and get hands-on experience in a company that tackles real-world challenges within the fields of Energies & Water, Buildings & Infrastructure.

Whether you’re looking for an internship, a student job, or your very first job  – there’s a place for you at Denys.

What you can expect

  • Real responsibilities. You won’t just be watching – you’ll be doing.
  • A supportive environment. Our people are here to guide you, challenge you, and help you grow.
  • A flexible setup. Duration and focus of the internship can be tailored to your study requirements.
  • A unique opportunity to explore your talents in an ambitious, international company.

Young Professional Stories

  • An interesting internship at a complex worksite! It was neat that they considered my ideas, amongst others at worksite meetings, and that they also gave me a fair amount of responsibility. I didn't mind the early mornings one bit and I was proud to put on my jacket & helmet. That says it all, I think!

    Robin M.

  • After my internship on the WarmtelinQ project in Delft, Denys hired me as a site manager. I'm really looking forward to working on all those interesting projects and I will tackle future challenges with great enthusiasm.

    Robin I.

Your Denys story starts here

I apply

You’re ready to take on a challenge, and you send us your application. We look at every profile with care and curiosity.

I connect with HR

You talk with one of our recruiters. A straightforward, human conversation to understand your drive, your story, and your fit.

I connect with the Business

You meet the head of the division or department. Together, you explore your potential impact, and if our ambitions align.

I receive an offer

I receive an offer We’re convinced. You get a personalized offer that reflects your strengths and the value you bring.

I'm welcomed as a new Do-Dreamer

Welcome aboard. From day one, we make sure you’re equipped, connected, and ready to make your mark.

    Answers to your questions

    • An internship is part of your academic programme — a chance to put theory into practice in a real-world context.

      A student job isn’t linked to your studies, but offers valuable hands-on experience and gives you a close-up view of daily life at Denys.

    • Absolutely! We offer internships across Europe — including Belgium, the Netherlands, France, Germany and beyond. If you’re looking to broaden your horizons, we’ll help you find the right fit.

    • Of course. Denys is active in many domains — from Energy & Water to Buildings and Infrastructure. If you’re still figuring out where you fit, that’s okay. Reach out to us, and we will help you explore the options. Together we will find the challenge that sparks your ambition.

    • We might not always know in advance where a project will be located at the time of your application. But your home base and personal preferences do count. We listen to what matters to you and do our very best to assign you to a location that works well for you.