Roblox
Distinguished Engineer, Machine Learning - Discovery
$419K–$458K
San Mateo, CA, United States · Principal · Full-time · Posted Sep 25, 2026
- Experience
- 10+ years; no alternative stated.
- Education
- BS in Computer Science or a related discipline; MS/PhD are a definite plus.
- Visa sponsorship
- For US-based roles, the company may be unable to employ candidates with work authorization related to certain U.S. visa categories or support future H-1B sponsorship at this time.
About the job
Sets technical strategy and leads development of large-scale machine learning systems for Roblox search, recommendations, and content discovery.
What you'll do
- Own technical direction and implementation for search and recommendation ML, including candidate generation, ranking, and objective functions.
- Build and evolve infrastructure for training, serving, and evaluating traditional ML and Generative AI models.
- Lead technical decisions and collaborate across engineering, data, infrastructure, and product teams.
What they ask for
- 10+ years of experience delivering and improving large-scale search and recommendation systems.
- Experience building large-scale machine learning models with billions of parameters and launching them into production.
- BS in Computer Science or a related discipline.
- Ability to drive technical decisions across teams and translate long-term product requirements into iterative deliverables.
Nice to have
- MS/PhD.
- Expertise across several languages and technologies.
Pay
$419,390 — $457,970 USD annual base salary
Tools
embedding-based retrieval, transformers, LLM-based workflows
AI focus
Sets AI strategy and develops search and recommendation systems, including Generative AI models and infrastructure for training, serving, and evaluation.
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