Senior Systems Programmer - 7 Days to Die

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.

Help shape the next era of an iconic survival franchise.

For over a decade, 7 Days to Die has captivated more than 20 million players worldwide. Now, with Behaviour Interactive joining forces with The Fun Pimps, we’re entering an exciting new phase of growth, bringing together deep live game expertise and the creative legacy behind the franchise. This is a rare opportunity to help elevate a beloved game, scale its long-term potential, and shape what comes next for millions of players.

In this role, you will: Develop and maintain core game systems that support gameplay, world simulation, and engine functionality. Collaborate closely with design, art, and programming teams to deliver robust and scalable features. Improve and optimize game performance across CPU, GPU, memory, and I/O systems. Architect and implement solutions that support large-scale procedurally generated worlds. Profile, debug, and resolve complex technical challenges across PC and console platforms. Contribute to technical direction, best practices, and knowledge sharing within the programming team.

What we are looking for: 8+ years of professional game development experience as a systems, generalist, or game programmer. 4+ years of professional experience with C# and experience with additional programming languages such as C++, Python, etc. Experience shipping and supporting games on modern platforms, including PC, PlayStation 5, Xbox Series X|S, and Nintendo Switch. Expert in one or more domains such as gameplay systems, AI, graphics, networking, online services, and math/physics. Expert-level understanding of Unity's architecture, including Animation, Rendering, Asset Bundling, and Networking systems. Advanced proficiency with performance optimization and profiling tools such as Unity Profiler, PIX, RenderDoc, VTune, and Superluminal.