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 related field, or comparable experience in software development
• Experience working with complex code bases
• Experience working with UX and visual designers
• Strengths in collaboration, communication, technical requirements gathering, and determining technical strategy

Desired Qualifications:

• Professional experience working with web front end tech (preferably React)
• Experience with or willingness to work in Kotlin Multiplatform (KMP)
• Professional experience with telemetry and analytics (e.g. Firebase, Statsig, DataDog)
• Professional experience with Java Spring Boot services
• Understanding of build / deploy automation

For this role, you'll find success through craft expertise, a collaborative spirit, and decision-making that prioritizes your fellow Rioters, who are the customers of your work. Being a dedicated fan of games is not necessary for this position!

Our Perks:

Riot focuses on work/life balance, shown by our open paid time off policy and other perks such as flexible work schedules. We offer medical, dental, and life insurance, parental leave for you, your spouse/domestic partner, and children, and a 401k with company match. Check out our benefits pages for more information.