Principal Engineer - League of Legends

Riot Games·Dublin, Ireland·Posted 3 November 2026

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About the role

As a Principal Software Engineer on the League of Legends' Purchase Points theme, you will set technical direction for player-facing systems across the game client, engine, UI, content, and service integrations. You will bring expert C++ and game-development experience to complex, cross-team problems - making sound architectural decisions, clarifying tradeoffs, and helping teams build experiences that are performant, maintainable, reliable, and cohesive. You will partner with Engineering, Product, Design, Art, UX, QA, and Production, and lead through influence rather than formal authority. Responsibilities: Set technical direction and lead architecture for complex initiatives spanning multiple teams. Design and guide implementation of player-facing systems across client, engine, UI, content, tooling, and services. Identify cross-team technical risks and dependencies, and make tradeoffs across player experience, quality, performance, scope, and schedule clear. Raise the bar for system quality, reliability, observability, maintainability, and live-service operations, including participation in ongoing operational support, incident response, and root-cause analyses. Establish shared…

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