Principal Machine Learning Engineer - League of Legends
Riot Games2 months ago
Base Salary
$292k - $438k/yr
Responsibilities
- Lead AI/ML workflows, MLOps, automation, self-healing pipelines, and deployment standards for League of Legends.
- Design and implement scalable AI/ML serving architecture and integrations for Riot’s global player base.
- Lead ML feature platforms and data-pipeline improvements addressing scale, latency, and reliability constraints.
- Drive ML developer experience, platform tooling strategy, API standards, and operational cost optimization.
- Establish AI/ML governance, compliance, privacy, security, and cryptography practices with partner teams.
- Set incident management, response, observability, and monitoring standards for production ML systems.
- Mentor senior and staff-level engineers, coach developers across disciplines, and contribute to recruiting standards and interview kits.
Requirements
- Bachelor’s degree in Computer Science or a related field, or equivalent practical experience.
- 10+ years of professional software engineering experience, including 5+ years building production ML platforms, systems, or MLOps capabilities.
- Evidence of leading platforms or systems adopted and relied upon by multiple teams or products.
- Deep operational experience with ML-system failure modes such as training-serving skew, silent degradation, and cost spirals.
- Experience with cloud-native orchestration, Kubernetes, GPU scheduling, container orchestration, and large-scale system design.
- History of improving ML practitioner developer experience and materially increasing shipping speed or reliability.
- Track record mentoring senior and staff-level engineers and elevating platform engineering judgment.
- Experience serving multiple products or game titles, solving novel ML data-pipeline constraints, or working in ML governance, security, privacy, or compliance is preferred.
- Interest in player experience, games, or creative technology.
Benefits
- Los Angeles headquarters-based role with flexible work schedules.
- Open paid time off policy.
- Medical, dental, vision, and life insurance.
- Short- and long-term disability coverage.
- Parental leave for employees, spouses or domestic partners, and children.
- 401(k) with company match.
- Incentive compensation and equity are offered in addition to base salary.
Tech Stack
Categories
About Riot Games
Riot Games develops and publishes online multiplayer games for PC and mobile, including League of Legends, Valorant, Teamfight Tactics, Legends of Runeterra, and Wild Rift. The company operates free-to-play titles monetized via in-game purchases and runs global esports leagues and events around its franchises. Founded in 2006 and headquartered in Los Angeles, Riot is a subsidiary of Tencent with offices worldwide.