Roblox
Senior Machine Learning Platform Engineer, Foundation AI
San Mateo, California · Senior · Full-time
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odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
This range already reaches Level IV — the maximum four lottery entries.
DOL prevailing wage, 2026-27 wage year · Software Developers (15-1252) · San Francisco-Oakland-Fremont, CA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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Green-card follow-through: 79%
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About the role
- Our vision is to reimagine the way people come together, from anywhere in the world, and on any device.
- This role blends product thinking, developer experience, backend engineering, and infrastructure at scale.
- For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below.
Responsibilities
- For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.
- Have 7+ years of professional experience and have a wealth of system design experience upon which to draw to build a scalable, reliable ML platform for all of Roblox.
- A Code Machine; you love not only to design and communicate ideas but also to actually ship product.
- You obsess about user feedback, and constantly drive towards getting platform features in customers hands.
- Proficient in API design and developer experience-gRPC/REST APIs, SDKs, CLIs, and simple UIs that developers love to use.
- Design great developer experiences with paved‑road templates, golden paths, opinionated defaults, and clear docs to reduce time‑to‑first‑production.
- Instrument the platform to measure adoption, friction, reliability, and cost; use data to prioritize roadmap and validate outcomes.
- Partner across organizations (ML Engineering, Data Science, Infra/SRE, Security, Finance) to optimize performance, safety, and spend, especially for GPU‑intensive training and high‑QPS inference.
- Propose and implement new platform tooling to improve time to production for MLEs across the full ML lifecycle.
- Mentor junior and senior engineers, lead design reviews, and drive cross‑team architectural decisions that last.
Requirements
- Good to have - experience with the end‑to‑end ML model lifecycle such as model serving, training, model CI/CD, and GPU resources management, and have built ML platform features that are delightful to use.
- Bachelor's degree in Computer Science, Computer Engineering, Data Science, or a similar technical field.
Compensation
- $243,290-$312,970 USD
Benefits
- You push for platform solutions that don't leave on-call teams carrying the burden of design choices.
- Stay abreast of industry trends in machine learning and infrastructure to ensure the adoption of leading‑edge technologies and practices.
Company info
- We're looking for a Principal Platform Engineer who treats platform as a product: someone who can turn complex ML/AI infrastructure into clear, durable APIs, SDKs and easy-to-use CLIs/UIs that our internal developers love.
Visa & Work Authorization
- US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U
This listing is sourced directly from Roblox's careers page and normalized into a canonical job model.