Senior System Programmer - Blight:Survival

Behaviour Interactive, a leading independent game studio, is seeking a Senior System Programmer for Blight: Survival, a PvE action-horror game built on Unreal Engine 5. This role involves owning performance analysis, promoting UE5 best practices, safeguarding multiplayer stability, and driving optimization efforts. The ideal candidate will have strong C++ expertise and experience with Unreal Engine 5 systems to shape one of Steam's most wishlisted games.

Must Have

• Own the performance analysis workflow by managing the performance capture and analysis pipeline.
• Promote best practices for Unreal Engine internal structures, assisting the team in optimizing their work and fostering performance-conscious habits.
• Take ownership of key performance-critical systems, including the relevancy manager and ticking system.
• Safeguard multiplayer stability and performance by keeping memory usage under control and ensuring gameplay remains consistent and predictable during play sessions.
• Drive optimization and bandwidth management efforts across gameplay systems to deliver a seamless player experience.
• Improve efficiency across the board by automating workflows such as version delivery, content checking, and game testing.
• Minimum of 7 years of experience in programming in the video game industry.
• Strong C++ expertise and low-level programming skills.
• Proven experience with Unreal Engine 5 systems and architecture, tooling pipeline (UAT, BuildGraph).
• Solid understanding of networking fundamentals and optimization techniques.
• Proficiency in performance profiling tools and methodologies.
• Familiarity with console development pipelines.
• Strong debugging and problem-solving skills in large-scale multiplayer environments.

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.

Be Part of the Team Shaping One of Steam’s Most Wishlisted Games.

Blight: Survival is a PvE action-horror experience set in a brutal medieval world, where survival means facing relentless monsters and ruthless men. You can play solo or team up with friends, and every encounter is tense, every choice matters, and every battle tests how far you’re willing to go. Built on Unreal Engine 5, this ambitious title pushes the limits of performance and multiplayer stability.

Alongside the Technical director, you will be the team reference for good usage of the Unreal Engine 5; whether it is for memory or CPU usage, replication and network systems, or everything automation

In this role you will:

• Own the performance analysis workflow by managing the performance capture and analysis pipeline.
• Promote best practices for Unreal Engine internal structures, assisting the team in optimizing their work and fostering performance-conscious habits.
• Take ownership of key performance-critical systems, including the relevancy manager and ticking system.
• Safeguard multiplayer stability and performance by keeping memory usage under control and ensuring gameplay remains consistent and predictable during play sessions.
• Drive optimization and bandwidth management efforts across gameplay systems to deliver a seamless player experience.
• Improve efficiency across the board by automating workflows such as version delivery, content checking, and game testing.

What we're looking for:

• A minimum of 7 years of experience in programming in the video game industry.
• Strong C++ expertise and low-level programming skills.
• Proven experience with Unreal Engine 5 systems and architecture, tooling pipeline (UAT, BuildGraph).
• Solid understanding of networking fundamentals and optimization techniques.
• Proficiency in performance profiling tools and methodologies.
• Familiarity with console development pipelines.
• Strong debugging and problem-solving skills in large-scale multiplayer environments.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.