[2026] Senior Machine Learning Engineer, Multimodal AI, Computer Vision and Graphics PhD Early Career

At Roblox computer vision and graphics power the way our global community discovers creates and interacts on our virtual platform. This role involves building cutting-edge models to interpret and analyze every form of contentexperiences text images videos and 3D avatars. Your work will directly influence core systems that drive the next generation of creation search recommendations and trust & safety initiatives across our massive ecosystem.

Were looking for PhD candidates passionate about the intersection of computer vision graphics and generative modeling. Youll work on applied research and engineering projects with direct production impact enabling new ways for creators and players to bring ideas to life.

Teams Hiring for This Role

• Content Understanding: Develop large-scale computer vision and multimodal models that classify organize and recommend 3D and visual content to improve user discovery personalization and safety.
• Account identity : focuses on various aspects of user Identity from bot detection alternate account detection graph to age estimation based on behavioral and facial features.

You Will:

• Lead the research and development of deep learning models for visual content understanding and 3D content generation (image/video/3D scenes avatars and assets).
• Design and implement foundation models for visual and 3D-based creation search and recommendations ensuring a high level of fidelity relevance and ranking.
• Break down complex product requirements into iterative deliverable stages moving applied research into high-scale production systems.
• Implement innovative visual and multi-modal models that power core Roblox functions (e.g. world creation avatar systems search and recommendations).
• Build high precision facial age estimation across demographics from ground up including various fraud detection techniques for a robust and safe user identity system.

You Have

• Possessing or pursuing a PhD in computer science engineering or a related field with a thesis aligned to Robloxs research areas.
• Expertise in one or more areas: computer vision multimodal learning 3D Graphics or large-scale representation learning.
• Experience developing and training deep learning models using modern frameworks (PyTorch TensorFlow JAX).
• A strong research track record evidenced by multiple publications and presentations in top-tier peer-reviewed venues.
• Proficiency in one or more programming languages (e.g. Python C Go Java) and experience building and optimizing large-scale systems.

Apply now to be considered for anticipated positions.

You may redact age date of birth and dates of attendance/graduation from your resume if you prefer.

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Required Experience:

Senior IC