Senior Machine Learning Engineer (Systems), Embodied AI/NPCs, ML Platform - PhD Early Career

As a Senior Machine Learning Engineer at Roblox, you will contribute to building cutting-edge systems that power AI.

The Creator Services Machine Intelligence Team focuses on developing an NPC system that can play any Roblox game and perform real-time inference efficiently.

The ML Platform Team works on establishing Roblox as the standard for 3D foundational models, supporting hundreds of ML use cases and billions of inferences daily.

Responsibilities

Creator Services Machine Intelligence Team

• Develop scale data pipelines to collect complex 3D game states and real-time player actions.
• Train novel architectures for NPC models and drive model training speed for sophisticated deep learning architectures.
• Optimize real-time inference solutions to support seamless deployment of autonomous NPCs.

ML Platform Team

Track 1: AI Platform Projects

• Pioneer next-generation AI tooling to enhance efficiency, cost, and usability of ML at Roblox.
• Build and maintain core platform components, including Serving Layer, Model Registry, and Pipeline Orchestrator.
• Design great developer experiences to reduce time-to-production and ensure foundational AI systems are scalable and reliable.

Track 2: Distributed Inference & Systems Optimization

• Architect and implement scalable distributed inference systems for efficiently serving large models.
• Optimize the inference engine to serve millions of QPS at low latency.
• Conduct deep performance analysis and optimize ML models and systems on GPU architectures.

Requirements

• Ph.D. in Computer Science, Computer Engineering, Mathematics, Statistics, or a related technical field.
• Experience building end-to-end ML pipelines and managing model inference and deployment.
• Familiarity with novel datasets and building real-world agentic applications.
• Experience with scaled high-performance, high-availability architectures.
• Knowledge of infrastructure management using Kubernetes and major cloud providers.

Salary The annual salary range for this position is $196,750,$243,290 USD.