[2025] Senior Machine Learning Engineer, PhD New Grad - Creator Assistant

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.

We are looking for a highly skilled Senior Machine Learning Engineer - PhD New Grad - Creator Assistant to join our Creator Services Natural Language Processing Team. This role offers an exciting opportunity to work with brand new NLP, speech, and generative AI models and products. You will use the latest machine learning technology to help our creators develop scalable experiences.

You Will:

• Design and implement deep learning-based NLP solutions to address various problems across the Roblox platform.
• Develop and deploy NLP/ML-based services within the Roblox ecosystem, with end-to-end responsibility.
• Guide the future technical direction of the team, influencing engineering practices and standards.
• Be a technical bar-raiser, ensuring high code quality, robust architectural designs, and long-term strategic approaches.
• Balance the research of new technologies with practical implementation to integrate these advancements into Roblox products.
• Mentor and develop fellow engineers on the team, encouraging a collaborative and innovative environment.
• Craft scalable and resilient systems and services.
• Collaborate closely with passionate Engineers, Product Managers, and other Roblox team members.

You Have:

• A Ph.D. in Computer Science, Computer Engineering, Mathematics, Statistics, or a related technical field, or equivalent experience.
• Proven experience with transformer-based model design, training, serving, and product integration.
• A track record of crafting NLP/ML applications at scale.
• In-depth knowledge of speech models, deep learning-based NPC action, planning and dialogue generation, reinforcement learning, and computer vision.
• Proficiency in Python, C#, or similar programming languages.
• An understanding of SQL and databases at scale.
• A product-minded approach with a keen interest in understanding the end-user.

For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits.

Annual Salary Range$218,540—$218,540 USD

Roles that are based in our San Mateo, CA Headquarters are in-office Tuesday, Wednesday, and Thursday, with optional in-office on Monday and Friday (unless otherwise noted).

You’ll Love: 

• Industry-leading compensation package
• Excellent medical, dental, and vision coverage
• A rewarding 401k program
• Flexible vacation policy (varies by exemption status)
• 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. Roblox also provides reasonable accommodations for all candidates during the interview process.