R
Not Specified Permanent

San Mateo, California · USA job

Principal/Senior Machine Learning Scientist - Search and Discovery

Roblox

San Mateo, California

Job description

Overview

In Roblox, you design and deploy ML solutions powering agentic search, discovery, and personalized content experiences at scale. You'll work on LLMs, VLMs, and large models to improve understanding and recommendations within Roblox's creator ecosystem. Collaborating with cross-functional teams, you'll translate research into products that boost engagement, discovery, and growth. This role offers the chance to shape cutting-edge systems that impact tens of millions of daily users and ensure safe, civil experiences.

Compensation / Benefits
  • equity compensation
  • base salary: $278,530-$345,040 USD
  • opportunities for on-site collaboration (office schedule Tue-Thu)
Responsibilities
  • Design and implement ML solutions for agentic search and discovery to drive content distribution
  • Develop large-scale recommendation models
  • Create LLMs and VLMs for visual and natural language understanding
  • Balance research with practical product integration
  • Collaborate with internal teams to adopt a community-first approach
  • Communicate with industry and communities; act as Roblox ambassador
Key requirements
  • 7+ years (principal) or 4+ years (senior) of experience designing and building scalable ML solutions
  • Experience with transformer-based model training, inference, and product integration
  • Ability to break down product requirements into iterative deliverables
  • BS, MS, or PhD in Computer Science or related field
  • Led challenging technical decisions across multiple teams
  • User-centric approach; strong problem-solving and creative thinking
  • user-focused mindset
  • creative and strategic thinking
  • strong collaboration and communication
  • transformer-based model training and inference
  • LLMs and VLMs for understanding
  • large-scale recommender systems

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