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Roblox

Senior Machine Learning Engineer, GenAI Data

Roblox · San Mateo, CA, United States

Posted about 2 months ago

or apply directly on Roblox's site. We never take the application ourselves.

Is this posting real?

This role has been open
66 days
Roblox's roles stay open a median of 66 days
Reposted
No
Salary listed
No
0% of Roblox's roles list one
Ghost-job risk at Roblox
high
200 stale, 9 reposted of 234 open
Hiring momentum
313 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-08

Measured from postings appearing on and disappearing from Roblox's own greenhouse board since 2026-08-03. Full hiring picture for Roblox.

About this role

As a Senior Machine Learning Engineer at Roblox, you will focus on building and maintaining high-scale data pipelines to support the development of generative AI models for 3D content. Your role involves collaborating with AI researchers to create and evaluate dynamic datasets, ensuring the infrastructure can handle petabytes of data efficiently. You will also design APIs for model deployment and contribute to the overall technical excellence of the team.

Our read on this posting2.2out of 5
benefits
1/5
freshness
1/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Roblox as an employer.

What you need

  • 8+ years of experience as a research-focused data systems engineer
  • Expertise in building scalable ML data pipelines for both batch and real-time environments
  • Experience working with and processing very large datasets (Petabytes or more)
  • Proficiency in Python for automation, tooling, and infrastructure management
  • Experience with cloud data platforms and distributed processing technologies (e.g., Spark, Ray, Kubeflow, S3)
  • Ability to collaborate and mentor peers, driving technical excellence

Nice to have

  • MLOps experience with experiment tracking and versioning for massive datasets
  • Experience building internal 'human-in-the-loop' tools for data labeling specific to video or 3D
  • Knowledge of C++ for optimizing data loaders
  • Experience with game development and digital content creation tools like Roblox, Blender, Unreal Engine, or Unity

What you get

  • Equity compensation
  • Flexible onsite work schedule (onsite Tuesday, Wednesday, Thursday, optional Monday and Friday)

Worth weighing

  • No specific mention of career advancement opportunities
  • Salary range provided but dependent on various factors
  • Onsite work requirement may not suit all candidates
  • No mention of specific technologies or frameworks beyond those listed

Summarised from Roblox's posting. Read the full original.

Listed by Roblox on their greenhouse job board, last confirmed open on 2026-10-08. PitchMeAI is not the employer.

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