Principal Software Engineer - ML Platform Engineer

Riot Games was established in 2006 by entrepreneurial gamers who believe that player-focused game development can result in great games. In 2009, Riot released its debut title League of Legends to critical and player acclaim. As the most played PC game in the world, over 100 million play every month. Players form the foundation of our community and it’s for them that we continue to evolve and improve the League of Legends experience.

We’re looking for humble but ambitious, razor-sharp professionals who can teach us a thing or two. We promise to return the favor. Like us, you take play seriously; you’re passionate about games. We embrace those who see things differently, aren’t afraid to experiment, and who have a healthy disregard for constraints.

That's where you come in.

The AI Efficiency team at Riot Games builds the platforms, tools, and technical foundations that help Rioters safely and effectively use AI to accelerate how we work. As these systems become increasingly important to creative, product, and development workflows across Riot, we need platform engineering that can keep pace with growing scale, complexity, and expectations.

As a Principal Platform Engineer on the AI Efficiency team, you will design, build, and evolve the internal platforms, automation systems, and operational guardrails that make our AI services and developer workflows more scalable, reliable, and easy to use. You will partner closely with software engineers, infrastructure teams, and cross-functional stakeholders to improve developer experience, platform reliability, deployment safety, observability, and operational excellence across a growing portfolio of AI services, internal tooling, and supporting infrastructure.

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