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Machine Learning Engineer

FortyFive Labs

FortyFive Labs

Software Engineering
Cambridge, ON, Canada
Posted on Oct 27, 2025
Work on RLHF pipelines, model evaluations, and alignment research. Collaborate with top AI research teams to improve model safety and capabilities.Requirements:• 3+ years of ML engineering experience• Experience with PyTorch, TensorFlow, or similar frameworks• Knowledge of reinforcement learning and RLHF• Experience with large language models• Strong Python programming skills• Interest in spatial AI and WebXR applicationsKey Skills:PyTorch, Python, RLHF, Transformers, CUDA, WebGPU, WebXR