Senior Machine Learning Engineer, GenAI Data
Roblox · San Mateo, CA, United States
Posted about 3 months ago
or apply directly on Roblox's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 87 days Roblox's roles stay open a median of 87 days
- Reposted
- No
- Salary listed
- No 0% of Roblox's roles list one
- Ghost-job risk at Roblox
- high 234 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
- 2026-10-29
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.
- 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 2026-10-29. PitchMeAI is not the employer.
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