Roblox

Roblox is seeking a Principal Model Optimization Engineer to optimize machine learning models for performance on GPU architectures, focusing on both training and inference workflows. This role involves low-level performance profiling, contributing to best practices and tooling, and collaborating with cross-functional teams to integrate optimized models into production. The ideal candidate has significant experience debugging GPUs and is proficient in advanced tools like CUDA, Triton, and TensorRT, with expertise in LLM optimization techniques such as speculative decoding and quantization.

Senior Machine Learning Engineer on the AI Platform team at Roblox, focusing on building cutting-edge systems for AI at scale. The role involves pioneering next-generation AI tooling, building core platform components like Serving Layer, Model Registry, and Pipeline Orchestrator, and designing great developer experiences to enhance efficiency, cost, and usability of ML. The position supports billions of inferences daily and aims to establish Roblox as the standard for 3D foundational models.

Senior ML Engineer focused on deploying and optimizing Generative AI models for on-device, low-compute environments within Roblox's platform. This role involves developing ML models, establishing deployment pipelines, and optimizing architecture for various computing devices.

Senior Machine Learning Engineer focused on real-time engine optimization for Roblox's platform. The role involves analyzing massive-scale telemetry, designing ML models for predictive resource allocation and content delivery, building adaptive control systems, and integrating ML solutions into the core gameplay engine. The goal is to replace heuristic logic with data-driven decision-making to improve stability, visual quality, and responsiveness across billions of global play sessions.

Senior Machine Learning Infrastructure Engineer for Roblox Ads, focusing on building and scaling ML infrastructure for training, data pipelines, feature engineering, and inference to serve performance ads to millions of users.