Principal Software Engineer, Graphics - Teamfight Tactics

Riot Games-posted 3 days ago
Full-time • Senior
Los Angeles, CA
Professional, Scientific, and Technical Services
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Riot engineers bring deep knowledge of specific technical areas but also value the opportunity to work across broader domains. As Software Engineers, we work with both new and current technology, creating innovative solutions to overcome high-volume obstacles and deliver player value. As a Principal Software Engineer on Teamfight Tactics, you will provide technical leadership, hands-on implementations, and architectural guidance with a strong focus on real-time rendering and graphics systems. You will help push the visual fidelity, clarity, and performance of TFT across multiple platforms, ensuring that every player's experience feels refined. You will report to a Senior Engineering Manager on the Teamfight Tactics team.

  • Lead the design and implementation of advanced real-time rendering features, including lighting, shading, post-processing, VFX, and GPU optimizations.
  • Define and maintain rendering architecture and performance standards across multiple platforms, from high-end PCs to mobile devices.
  • Profile and optimize GPU/CPU performance to ensure high frame rates and smooth visuals in large-scale, multiplayer scenarios.
  • Champion innovation in rendering pipelines, shader development, and GPU optimization, ensuring our tech scales beautifully across platforms and hardware.
  • Act as a bridge between gameplay and engine teams, translating creative vision into performant, scalable rendering systems that push the boundaries of what's possible.
  • Contribute to a culture of technical excellence, mentorship, and continuous improvement-your work will ripple across multiple titles and inspire the next generation of visual storytelling at Riot.
  • Participate in planning and execution of engineering work: requirements gathering, technical discovery, design, breakdown, and estimation.
  • Ensure exceptional code quality by promoting engineering excellence (maintainability, quality, monitoring, code reviews, documentation).
  • Mentor and support engineers, tech artists, and designers in rendering best practices.
  • 8+ years of professional experience in game rendering, graphics programming, or engine development.
  • Proficiency in C++ and shader languages (HLSL, GLSL, or Metal Shading Language).
  • Strong knowledge of real-time rendering pipelines (PBR, lighting models, post-processing, GPU/CPU tradeoffs).
  • Hands-on experience with graphics APIs such as DirectX 12, Vulkan, Metal, or OpenGL.
  • Proven ability in rendering performance profiling and optimization across multiple platforms.
  • Strong understanding of OO programming, data-driven design principles, and game engine architectures.
  • Experience collaborating with cross-disciplinary teams (engineering, art, design).
  • Product sense, pragmatism, and player empathy in making technical decisions.
  • BS in Computer Science, or equivalent experience with proven understanding of CS fundamentals.
  • Experience with Unreal Engine (rendering pipeline, materials/shaders, profiling tools, and engine integration/workflows).
  • Experience with GPU debugging and profiling tools (RenderDoc, PIX, NSight, Xcode GPU tools, etc.).
  • Shipped rendering features in large-scale multiplayer games.
  • Experience optimizing rendering for mobile and multi-platform games.
  • Contributions to developer workflows that improve rendering productivity.
  • Open paid time off policy.
  • Flexible work schedules.
  • Medical, dental, and life insurance.
  • Parental leave for you, your spouse/domestic partner, and children.
  • 401k with company match.
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