Senior Software Engineer - Publishing Platform, Riot Mobile

Riot engineers bring deep knowledge of specific technical areas but also value the opportunity to work in a variety of broader domains. As Software Engineers, we work with both new and current technology, creating innovative solutions to overcome high-volume obstacles and to deliver player value. Riot Mobile is a personalized, always-on companion that connects players to the full Riot ecosystem—bridging in-game and out-of-game experiences to keep players engaged, informed, and ready to play. Designed as a player’s daily portal into Riot’s worlds, Riot Mobile helps millions of players stay connected to what matters most, from tailored news, patch notes, and esports to social experiences like cross-platform chat and lightweight coordination with friends. As a core surface for engagement beyond the PC or console, Riot Mobile ensures players have meaningful, game-enriching experiences wherever they are. As a Senior Software Engineer on the Riot Mobile team, you’ll build and scale a mobile platform that supports millions of players across Riot’s ecosystem. You’ll work across iOS and Android to develop features spanning personalization, social systems, and cross-game experiences, while owning multi-month technical efforts from discovery through delivery. You’ll collaborate with product, design, and engineering partners to solve ambiguous problems, make impactful technical decisions, and improve the quality and resilience of the platform. Riot Mobile is built with native code, Kotlin Multiplatform (KMP), numerous Riot APIs, AWS Lambdas, some React, embedded multimedia and live streaming, small Spring Boot services, and Riot’s internal SDK. Responsibilities: Design, build, and maintain mobile features across iOS and Android that support millions of players across Riot’s ecosystem Own and execute on multi-month projects, from technical discovery and prototyping through production delivery Collaborate with product managers, designers, and engineers across teams to break down ambiguous problem spaces and deliver impactful solutions Make and influence technical decisions at the team level, contributing to architecture, system design, and long-term technical strategy Write high-quality, maintainable code with appropriate test coverage, and uphold engineering excellence through code reviews and best practices Improve the reliability and performance of Riot Mobile by contributing to monitoring, on-call rotations, incident response, and root cause analysis Contribute to and evolve team development processes, CI/CD pipelines, and engineering standards Mentor and support other engineers through collaboration, code reviews, and knowledge sharing Partner with teams across Riot to integrate features with shared systems and enable cross-game experiences Required Qualifications:  4+ years of professional software engineering experience, including experience building and shipping mobile applications Bachelor's or Master’s degree in Computer Science or a rel...