[2026] Senior Machine Learning Engineer (Systems), Embodied AI/NPCs, ML Platform - PhD Early Career

Build systems that power Roblox’s embodied AI and ML platform, from collecting 3D game state data to training and deploying NPC models for real-time performance. Contribute to AI platform components (serving layer, model registry, pipeline orchestration) and architect distributed inference for LLMs and large recommender models. Optimize low-latency inference at massive scale using techniques like continuous batching, speculative decoding, and quantization.