Principal AI/ML Platform Engineer — Global-Scale Impact

Riot Games; Los Angeles (CA); On-site; USD 292,000 - 438,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Life insurance

Parental leave

401k with company match

Open PTO

Flexible work schedules

Job summary

Riot Games in Los Angeles is seeking a Principal AI/ML Platform Engineer for League of Legends to define ML platform strategy, build scalable systems, and set standards for deployment and operation of player and developer ML experiences.

You will mentor engineers across disciplines, shape product direction, and work with cross‑functional teams to enable rapid, reliable ML at global scale for live games.

Qualifications

• Bachelor’s degree or equivalent practical experience in a related field.
• 10+ years of professional software engineering experience, including 5+ years building production ML platforms, systems, or MLOps.
• Proven track record leading platforms adopted by multiple teams at scale.
• Deep operational intuition for ML systems and experience with cloud-native design.
• Experience mentoring senior staff and improving developer experience.

Responsibilities

• Lead AI/ML workflow and MLOps for League of Legends; build automation and self-healing pipelines.
• Design scalable AI/ML serving architecture to handle global production load.
• Build ML feature platforms to accelerate development and processing.
• Improve developer experience for ML practitioners and remove bottlenecks.
• Governance and security for ML platforms in partnership with compliance teams.
• Ensure platform security and privacy protections across systems.
• Create and enforce API standards and service development for ML across products.
• Drive cost optimization and operational excellence for ML systems.
• Lead incident management and establish monitoring standards for ML services.
• Mentor senior engineers and influence platform engineering judgment.

Skills

ML platform engineering

MLOps

Kubernetes

GPU scheduling

Container orchestration

Mentoring engineers

Developer experience

Cost optimization

Education

Bachelor’s degree in Computer Science or related field

Tools

Kubernetes

Docker

Cloud platforms

Job description

Riot Games in Los Angeles is seeking a Principal AI/ML Platform Engineer for League of Legends to define ML platform strategy, build scalable systems, and set standards for deployment and operation of player and developer ML experiences.

You will mentor engineers across disciplines, shape product direction, and work with cross‑functional teams to enable rapid, reliable ML at global scale for live games.