Principal Machine Learning Infrastructure Engineer, Ads & Discovery

Roblox is hiring a Principal Machine Learning Infrastructure Engineer for their Ads & Discovery team. This role involves building scalable, reliable, and high-performance infrastructure for ML systems, focusing on large-scale training and serving of models including LLMs and generative rankers. The engineer will investigate tradeoffs across data pipelines, distributed training, and low-latency inference.

Skills and focus areas

• machine learning infrastructure
• large-scale training
• model serving
• recommendation systems
• search systems
• agentic applications
• transformer architectures
• llms
• generative rankers
• content understanding systems
• data pipelines
• distributed training