Senior ML Engineer, Ads & Personalization Platform

Roblox; California (MO); On-site; USD 259,000 - 311,000; Full time

Job summary

Roblox in San Mateo, CA is seeking experienced machine learning engineers to design, develop, and scale ML-powered advertising systems.

In this role you will build deep learning models for ad ranking and personalized experiences, collaborate with cross-functional teams, and translate user needs into practical technical solutions. The base pay range is $259,030–$311,430 with equity and benefits; onsite attendance Tue-Thu with flexible options.

Qualifications

• 5+ years designing scalable ML solutions for real-world use cases.
• Experience with transformer-based model training, inference, and product integration is a plus.
• BS in Computer Science or related discipline; advanced degrees are a plus.

Responsibilities

• Design and implement ML solutions for ad ranking algorithms.
• Design and implement large-scale recommendation models.
• Author specs for new features and improvements.
• Collaborate with Roblox teams to build community-first products.
• Balance research with practical development for Roblox products.

Skills

Machine learning engineering

Transformer models

Scalable ML systems

Python / ML frameworks

Education

BS in Computer Science

Advanced degree preferred

Job description

Roblox in San Mateo, CA is seeking experienced machine learning engineers to design, develop, and scale ML-powered advertising systems.

In this role you will build deep learning models for ad ranking and personalized experiences, collaborate with cross-functional teams, and translate user needs into practical technical solutions. The base pay range is $259,030–$311,430 with equity and benefits; onsite attendance Tue-Thu with flexible options.