Programmer - Internship Winter 2026 - Rotterdam

Are you ready to dive into the world of cutting-edge video game development? Headquartered in Montreal, Behaviour Interactive is at the forefront of the gaming industry, crafting unforgettable experiences across PC, console, and mobile platforms. We're a dynamic, independent studio of over 1200 passionate employees, with studios in Toronto (Behaviour Toronto), Rotterdam (Behaviour Rotterdam) and in the UK (Behaviour UK–North & South). Our day to day revolves around two core business focuses: Services and Original Games. Our Services team collaborates with gaming and entertainment giants like Disney, Sony, Activision, and Nintendo, delivering exceptional work-for-hire development and pioneering immersive location-based entertainment (LBE). Meanwhile, our Original Games unit pushes our creative limits, with our signature IPs, including the iconic Dead by Daylight. Join us and be a part of the future of interactive entertainment

At Behaviour Interactive, we believe in giving everyone a fair shot. We embrace a diverse and creative environment where everyone is celebrated. We value folks of all ages, sex, ethnicity, colour, ethnic or national origin, religion, sexual orientation, gender identity, civil status, disability, or any other protected characteristics as per applicable law.

This position requires you to be in the office in Rotterdam a few days a week

Behaviour Interactive is on the lookout for Programming Interns to join our diverse game projects As a Programming Intern, you'll work alongside experienced developers and be mentored by a technical lead. This is your chance to dive into real production environments, sharpen your coding skills, and contribute directly to the games players love.

If you're ready for a unique experience, working with passionate colleagues, and leveling up your skills in a creative and fast-paced environment, this is where you need to be. Are you game?

About the interview process: 

1. Completion of a Codility test

2. 30-minute technical interview in the studio

3. Hiring decisions and offers presentation

* Project assignment will be done after the offers, once all the programming cohorts will be hired. That means you won't know which project you will be working on before accepting the internship.

To be considered for this internship, you must:

·       Send us your resume and tell us about your passion for videogames in your cover letter.

·       Be able to work 40 hours/week for 4 months starting in February 2026.

·       Be eligible to work FULL TIME in the Rotterdam office at the time of your application.

Why join Behaviour for an internship?   

· A chance to grow your skills and discover your full potential  

· Free lunch ‍ 

· 100€ BeHappy expense reimbursement to buy whatever that makes you feel good  

• Develop features, either directly for game projects or for our backend service teams.
• Debug, troubleshoot, and resolve issues to improve code robustness.
• Work with game engines such as Unreal Engine and/or Unity.

• Developing and improving backend services such as player data management, player connectivity, achievements, and leaderboards.
• Developing and enhancing core game engine components such as graphics, audio, networking, and tools.
• Collaborating with designers, animators, artists, and other disciplines to integrate various elements into the game, such as animations, sound components, and visual effects.

• Strong interest in video games.
• Good knowledge of one or more of the following programming languages: C++, C#.
• Knowledge of Lua, an asset.
• Previous experience with game engines such as Unreal Engine or Unity as well as others.
• English is a requirement.

Prêt·e à plonger dans le monde du développement de jeux vidéo à la pointe de la technologie ? Basé à Montréal, Behaviour Interactif est un acteur majeur de l'industrie du jeu, créant des expériences inoubliables sur PC, console et mobile. On est un studio indépendant dynamique avec plus de 1200 employés passionnés, et on a des studios à Toronto (Behaviour Toronto), Rotterdam (Behaviour Rotterdam) et au Royaume-Uni (Behaviour UK–North & South). On se concentre sur deux grands axes : les Services et les Jeux Originaux. Notre équipe Services collabore avec des géants du jeu et du divertissement comme Disney, Sony, Activision et Nintendo, en offrant un développement sur commande de premier choix et en innovant dans le divertissement immersif en lieu fixe (LBE). Pendant ce temps, notre unité Jeux Originaux repousse les limites de notre créativité avec nos IPs emblématiques, comme le fameux Dead by Daylight. Rejoins-nous et fais partie de l'avenir du divertissement interactif

Chez Behaviour Interactif, on croit en l'équité des chances pour tout le monde et on célèbre la diversité des personnes, des perspectives et des idées. C'est donc important pour nous de travailler avec des talents qui proviennent de tous les horizons, et ce, indépendamment de leur âge, sexe, ethnicité, couleur, origine ethnique ou nationale, religion, orientation sexuelle, identité de genre, statut familial, handicap ou toute autre caractéristique protégée par les lois applicables.