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Roblox

Runs a platform where users build and play games

Senior Machine Learning Engineer - 3D Data

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeSan Mateo, CA, USA

About the Job

Requirements

  • At least 5 years of experience as a research-focused data systems engineer, preferably working with 3D generative models.
  • Expertise building scalable machine-learning data pipelines for batch and real-time environments and processing very large datasets, at petabyte scale or larger.
  • Comfort working with multiple programming languages and technologies and adapting to different situations.
  • Ability to collaborate, mentor peers, drive technical excellence, and lead delivery of key features and projects across team boundaries.
  • Proficiency writing high-quality Python code for automation, tooling, and infrastructure management.
  • A bachelor's degree or equivalent experience in Computer Science, Computer Engineering, or a similar technical field.

Responsibilities

  • Architect and maintain automated pipelines to ingest, clean, and preprocess 3D datasets spanning petabytes of data.
  • Research and implement synthetic data creation pipelines.
  • Collaborate with machine-learning engineers and data scientists to understand their data requirements, build tools that streamline their data workflows, and troubleshoot data-related system issues.
  • Build and own evaluation frameworks that automate heuristic-based metrics and provide human-in-the-loop interfaces to evaluate and benchmark training datasets and in-house foundation models.
  • Design and optimize high-throughput, low-latency inference APIs for internal and external consumer access.
  • Participate in literature reviews and paper-reading groups to identify and implement the latest optimizations in generative modeling.
  • Implement monitoring of pipeline health and optimize data loading to ensure efficient GPU utilization.

Desired Qualifications

  • Experience with experiment-tracking platforms such as Weights & Biases or MLflow and versioning massive-scale datasets.
  • A track record of developing internal human-in-the-loop workflows and annotation tools tailored to 3D or video data.
  • Strong C++ proficiency to optimize data-loader performance and extend underlying core-engine functionality.
  • Hands-on experience developing in Roblox Studio or working with digital content creation tools such as Blender, Unreal Engine, or Unity.

About the Company

Roblox

Runs a platform where users build and play games

Roblox runs an online platform where people play, chat, and hang out in 3D games built by its users rather than by the company itself. In 2025, Grow a Garden, a game a teenager made on Roblox, set the record for the most people playing one video game at the same time. Creators build games with Roblox Studio, a free design tool, and players join through the free Roblox app on phones, computers, game consoles, and VR headsets. Roblox makes money by selling Robux, a virtual currency players spend on avatar items and in-game extras, and it shares part of that spending with creators, who can exchange their Robux for real money. Roblox was founded in 2004 and is based in San Mateo, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Mateo, CA
Founded
2004

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