Principal Machine Learning Engineer (Game Development)

TL;DR

Principal Machine Learning Engineer (Game Development): Develop and lead AI bot modeling strategies for League of Legends, focusing on training agents that enhance player experience across game modes. With an accent on reinforcement learning, imitation learning, and integrating ML systems into live game environments. Focus on designing, evaluating, and optimizing autonomous agents that interact dynamically with players and ensuring safety and fairness in live settings.

Location: Remote work available globally

Company

hirify.global is a product company focused on game development, creating engaging player experiences for League of Legends and other titles.

What you will do

• Lead AI bot modeling strategy for League of Legends across various game modes and skill levels.
• Develop predictive features from gameplay telemetry and simulation data ensuring quality and reliability.
• Design and implement ML systems using reinforcement learning, imitation learning, and hybrid approaches.
• Define evaluation frameworks balancing general and game-specific metrics for AI agents.
• Ensure safety, fairness, and trustworthiness of autonomous agents in live player environments.
• Collaborate with game engineers, UX designers, and analysts to integrate and optimize ML models in production.

Requirements

• Extensive experience (8+ years) delivering ML systems in production, including reinforcement and imitation learning in interactive environments.
• Proven ability to design modeling strategies adopted across multiple games or interactive products.
• Expertise with gameplay telemetry, simulation data, and feature engineering for training ML models.
• Experience with game engineering and C++ for telemetry hooks is a plus.
• Strong track record building and optimizing agent-based systems for dynamic player-facing environments.
• Mastery of experiment design, model evaluation, and responsible AI safety practices.

Culture & Benefits

• Flexible work schedules and open paid time off policy supporting work/life balance.
• Medical, dental, and life insurance coverage.
• Parental leave for employees and their families.
• 401k retirement plan with company match.
• Collaborative teams empowered to bring unique perspectives daily.