The role

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. Behaviour is looking for a talented Senior Mission Designer to help shape the gameplay experience of a brand-new AAA IP.

In this role, you’ll leverage both your creative vision and technical expertise to craft missions that drive the moment-to-moment excitement of the game. Working closely with a multidisciplinary team and a renowned external partner, you’ll play a key role in defining the flow, pacing, and emotional impact of the player journey on this ambitious Unreal Engine 5 project.If you’re passionate about designing memorable missions and want to be part of an amazing team building a cutting-edge AAA experience, this is the opportunity for you!

In this role you will :

• Design, prototype, and own missions from concept to final implementation, ensuring they deliver engaging objectives, combat encounters, and scenarios aligned with the game’s narrative and core gameplay pillars.
• Shape mission flow, pacing, and difficulty curves to ensure engaging and rewarding experiences.
• Combine combat, exploration, and storytelling into cohesive, interactive experiences.
• Partner with systems designers to ensure missions complement progression, rewards, and core mechanics.
• Clearly communicate your design intent to the creative director, artists, engineers, and QA across the full production pipeline.

What we're looking for :

• 4–5 years of proven experience designing missions, quests, or levels on shipped AAA or mid-size titles.
• Strong understanding of mission design principles, including flow, pacing, player motivation, and engagement loops.
• Proficiency with Unreal Engine 5.
• Ability to balance narrative-driven storytelling with gameplay-driven challenges.
• Excellent communication skills and collaborative mindset, in English and/or French.
• Experience with multiplayer and open-world projects.
• Familiarity with visual scripting and sequencing tools, such as Blueprint or Flowgraph, for mission logic.