Staff Machine Learning Engineer - Unpublished R&D Product

Riot Games·Los Angeles, USA·Posted 9 October 2026

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About the role

As a Staff Machine Learning Engineer on an unpublished R&D game project, you will own the strategy, design, and implementation of ML capabilities. You will work closely with developers, designers, and data scientists to understand their needs, and will be hands-on in conceptualizing, planning, implementing, and maintaining ML-driven solutions. We’re looking for someone who is passionate about enabling great player experiences, thrives in cross-disciplinary collaboration, stays current on the latest ML techniques, and can apply them pragmatically to challenging product problems. You will report to the Engineering Manager within the R&D game project. Responsibilities: Work closely with developers, designers, and data scientists to identify and define improvement opportunities Refine modeling and feature strategy for using techniques such as reinforcement learning Establish pipeline architecture patterns in partnership with central teams; build reusable training and evaluation pipelines that can be adapted to Riot-wide use cases Drive the application of ML/RL systems to improve decision-making and adaptation Establish research-to-production practices; balance cutting-edge techniques…

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