Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators.

At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.

A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.

As a ML Animation Engineer on the Avatar Movement team, you will work on challenging problems at the intersection of machine learning and character animation, to bring 3D avatars to life for millions of users on the Roblox platform.

Roblox empowers players and developers to unleash their creativity, and our team focuses on the control and animation of both player and AI-controlled avatars. Your work will include developing algorithms and machine learning techniques for data-driven motion synthesis (e.g., motion matching, style transfer), NPC behavior, and AI-powered authoring tools for content creation.

You Are:

  • Experienced in applying Machine Learning to problems related to 3D motion synthesis, control, and animation content creation.

  • Knowledgeable about convolutional and sequential neural architectures (e.g., RNN’s, LSTM’s, seq2seq, Transformers etc) and recent trends in generative models (e.g. diffusion models)

  • Proficient in at least one Machine Learning library (TensorFlow, Torch etc)

  • Familiar with traditional computer animation and comfortable programming in C++. Experience with Lua is a plus.

  • Foundation oriented: you understand the importance of good foundations to enable fast iterations

  • Performance-minded: we are building a platform accessible to everyone and especially from mobile devices.

  • Self driven: Self-sufficient, self-organized and able to take ownership of a project throughout its full lifecycle

  • Team player: Ability to work closely with and inspire the rest of your team while displaying excellent interpersonal and communication skills

You Have:

  • A Masters in a related field with an emphasis on machine learning for computer animation and 5+ years of experience, or equivalent industry/academic experience

  • Experience deploying ML models in production environments with the VFX, animation, gaming, robotics, or similar industries

Nice to Have:

  • Knowledgeable in algorithms related to motion matching, style transfer, motion warping, motion editing, multi-character animation, crowd modeling, X2Anim (e.g., video2anim, NL2anim, sketch2anim) etc.

  • Publications in graphics, robotics, or ML conferences (SIGGRAPH, ICRA, IROS, ICML, NeurIPS or similar)

  • Familiarity with on-device machine learning

You Will:

  • Help defining the ML roadmap for Avatar Movement

  • Design advanced AI/ML techniques for motion synthesis, NPC behavior, and animation authoring

  • Be responsible for the deployment and maintenance of such technologies.

  • Keep up to date with the latest academic and industry breakthroughs, independently research and develop improvements to continuously push our technology forward.

You’ll Love:

  • Industry-leading compensation package

  • Excellent medical, dental, and vision coverage

  • A rewarding 401k program

  • Flexible vacation policy

  • Roflex - Flexible and supportive work policy

  • Roblox Admin badge for your avatar

  • At Roblox HQ:

    • Free catered lunches five times a week and several fully stocked kitchens with unlimited snacks

    • Onsite fitness center and fitness program credit

    • Annual CalTrain Go Pass

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.