Senior C++ Programmer - Machine Learning

Ubisoft2; Montreal (administrative region); On-site; CAD 110,000 - 170,000; Full time

Job summary

Ubisoft2 is seeking an experienced ML/C++ engineer to design and support ML systems embedded in game engines and games. You will optimize model performance, leverage GPUs and CPUs, and collaborate with data scientists, gameplay programmers, and the production team to deliver scalable AI solutions.

The role emphasizes strong architecture, memory management, and the ability to write high-quality, testable code across complex pipelines and platforms.

Qualifications

• Bachelor's degree in computer science or computer engineering; Master’s in ML is a strong asset.
• 10+ years in C++ programming; 5+ years in AI/ML recommended or required.

Responsibilities

• Provide and support ML systems based on business requirements and objectives.
• Develop, integrate, and maintain inference engines, ML libraries, and frameworks.
• Leverage hardware (NPU, GPU, CPU) to accelerate ML computations.
• Build systems to evaluate, optimize, and measure model performance.
• Integrate ML systems within game engines and games.
• Write unit tests and integration tests.
• Collaborate with data science, specialized programmers, research, and production teams.
• Write clear, structured code with performance, maintainability, modularity, scalability, and compatibility in mind.

Skills

C++

AI/ML

Multithreading

Memory management

Python

Education

Bachelor's degree in computer science or computer engineering

Master's degree in Machine Learning

Tools

ML libraries/frameworks

Game engines

GPU/CPU optimization

Job description

What you'll do

• Provide and support ML systems based on business requirements and objectives.
• Develop, integrate, and maintain inference engines, ML libraries, and frameworks.
• Leverage the best hardware (NPU, GPU, CPU) to accelerate ML-related computations.
• Build systems to evaluate, optimize, and measure model performance.
• Integrate and maintain ML systems within game engines and games.
• Write unit tests and integration tests.
• Collaborate with the data science team, specialized programmers (gameplay, AI, etc.), the research team, and other stakeholders such as production teams.
• Write clear and structured code that meets performance, maintainability, modularity, scalability, and compatibility requirements.

Other responsibilities

• Create proof-of-concepts, which may involve model training, fine-tuning, and experimenting with different techniques and architectures.
• Suggest improvements when needed by designing and implementing new systems or enhancing existing ones.
• Conduct research to stay up to date with the latest advancements.
• Prepare documentation, presentations, and knowledge-sharing materials to communicate complex AI concepts to both technical and non-technical collaborators.

What you bring

Education

• Bachelor's degree in computer science or computer engineering or equivalent.
• A master's degree in Machine Learning or any other relevant field is a strong asset.

Relevant Experience

• Minimum 10 years of experience in C++ programming.
• Minimum 5 years of experience in AI/ML.

Core Skills

• In-depth knowledge of C++ required.
• Strong architecture skills.
• Good understanding of hardware to leverage multithreading and optimize memory management.
• Solid knowledge of machine learning and deep learning fundamentals.

Other Skills

• Proficiency in Python is an asset.
• Experience working with game engines is an asset.