Web Design & Development Internship

About Proba

Fertilizers contribute ~5% of global emissions, which makes them a key area for decarbonization. With Proba, agri-food businesses can quantify, verify, and report emission reductions from fertilizer-related interventions within their supply chains using Inset Units. These units facilitate the financing and scaling of GHG emission reduction projects, which benefit each supply chain member, and our planet.

About the role

We're looking for someone who lives in the space between design and code. You'll work closely with Proba's marketing team to turn ideas into real, usable website parts: landing page sections, interactive elements, modular builds that look good and hold up across devices. You'll write the code. You'll also have a say in how things look and feel.

This role is hands-on. You’ll be writing code, tweaking layouts, and making sure what we ship looks good and works properly across devices. Together, we can determine the projects you work on in accordance with your internship requirements. 

Who we’re looking for

• Knowledge of HTML, CSS, JavaScript
• Familiarity with at least one framework (React, Vue, or similar)
• Basic understanding of Git
• You have a portfolio or GitHub showing real projects
• We assume you are comfortable vibe coding
• Strong attention to detail and ability to work independently.
• You’re available for a 4-6 month internship starting February 2026 or earlier.
• You’re fluent in English, written and spoken.
• You are located in the EU, ideally in The Netherlands. We want to see you in the office.
• Most importantly: You’re a person who is a self-starter, curious and outgoing.

What you'll receive

• Collaborate directly with the founders and a passionate team of professionals.
• Most of the time you will be in our Amstelveen office.
• Internship monthly compensation of 600 eur.
• Travel allowance OR Swapfiets subscription.

Application process

• Please send your application to [email protected].
• You will receive an answer and an invitation to an interview.
• You will have 2/3 rounds of interviews with the members of the team and management.
• If you like us and we like you, you get the position.

Sounds good to you?

Great! Then send your application! We don’t want a long motivation letter; we’d rather have a few pointers, your portfolio, and your resume.