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Principal Software Engineer - League of Legends , UI Tooling

Riot Games
Los Angeles, USA Full Time Negotiable Sep 23, 2026

About the Job

Riot engineers bring deep knowledge of specific technical areas but also value the opportunity to work in many broader domains. As a Software Engineer, you'll work with both new and current technology, creating creative solutions to overcome high-volume obstacles and to bring player value.

As a Principal Software Engineer on the UI Tooling team, you will develop against the foundations of the UI frameworks and authoring tools used to build experiences for League of Legends. The scope of this position requires collaboration with technology owners and content teams across the organization to ensure we p...

Key Responsibilities

Work and align with different partners that span across multiple teams to ensure we're delivering awesome features to excite them
Contributing to technical discussions/designs that your team oversees
Own the software lifecycle for your code that includes develop/test/deploy/maintaining frameworks, platforms, and tools
Mentorship. You help junior Rioters develop the tools and creative atmosphere to shine
Participate in the team's support rotation

Required Skills & Abilities

8+ years of deep hands-on experience with C/C++ that spans several use-cases and platforms.
At least 5 years of experience in the video game industry that includes working within multiple game development UI and an example of a shipped game. 
Have been responsible for driving the development of several organizational sized development efforts (1-year+ scope), including requirements gathering, planning, and testing.
Maintained software development best practices within your organization that includes design/code reviews, coding standards, source control management, testing, delivery performance, scalability, and maintainability
Experience working on a custom, internally developed game engine and tooling.
Expertise with UX artist workflows 

For this role, you'll find success through craft expertise, a collaborative spirit, and decision-making that prioritizes the delight of players. We will be looking at your past studies, experience, and your personal relationship with games. If you embody player empathy and care about the experiences of players, this could be the role for you!

Qualifications

Experience: 5 years experience

Apply now

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