Senior Director of Engineering, Generative AI

The role

You will lead the Applied AI organization inside Roblox Build to turn foundation models into reliable creation systems. You will own the full applied AI stack including model strategy, adaptation, code generation, 3D layout generation, and evaluation science.

What you will do

• Own model strategy and routing for Build
• Lead model adaptation including fine-tuning, distillation, and synthetic data generation
• Drive CodeGen capabilities to build AI systems that understand creator intent
• Build LayoutGen intelligence to turn intent into coherent 3D scenes
• Own evaluation as a core technical discipline by building benchmarks and metrics
• Close the feedback loop between model development, evaluation, and production

Required qualifications

• 10+ years of experience in machine learning and AI
• 5+ years in senior technical leadership roles overseeing applied AI or ML engineering organizations that have shipped generative AI systems into production at scale
• Deep technical grounding in LLM post-training, model routing and adaptation, agentic systems, code generation, or evaluation science
• Demonstrated experience building and leading high-performing organizations of research scientists and production engineers
• Strong evaluation fluency with a track record of building eval frameworks
• Experience operating cross-functionally in complex technical organizations

Nice to have

• Genuine interest in the creation problem

Benefits

• Equity compensation
• Benefits as described on this page

Before you apply

• Company may not be able to employ candidates who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time

About the company

Roblox builds tools and a platform that empower a global community of developers and creators to bring 3D immersive digital experiences to life. The company's mission is to connect a billion people with optimism and civility.