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 Senior / Principal Machine Learning Platform Engineer you will build the next generation of ML Ecosystem Tooling. You will have an impact on the Roblox platform and the industry—providing our developers and creators alike the ability to go from an ML idea to production in weeks or less. We are looking for accomplished ML and Systems Engineers who want to build large-scale ML systems from the ground up.

You Are:

Passionate about pushing the technological envelope and venturing into the unknown. 3+ years of professional experience working with scalable, distributed systems. Well versed with the Model Development Lifecycle from initial ad hoc analysis in notebooks to monitored services in production and back again. Have deployed and maintained an ML model in production, ideally at scale. Experience with developing ML Platform features that are a delight for MLEs and Data Scientists Ideally have experience with GPUs - reading GPU profiles, debugging CUDA kernels, optimizing GPU workloads Ideally have experience with large-scale distributed training (e.g. across hundreds of GPUs for multiple weeks)  Understand best practices around Data and Model management Ideally understand intricacies around unstructured data vs structured data and understand how to optimize data loading into training jobs Bachelor's degree in Computer Science, Computer Engineering, Data Science or a similar technical field.

You Will:

Develop the service APIs for ML Infrastructure components--Serving Layer, Metadata Store, Model Registry, Feature Store, and Pipeline Orchestrator. Work directly with partner teams to identify opportunities for model optimization. Partner across organizations to build tooling, interfaces, and visualizations that make the ML@Roblox a delight to use. Have an impact to the state of the Roblox platform, and the industry, to the next level of managed E2E ML Pipeline Development and Automation Provide our developers and creators alike the ability to go from an ML idea to production in weeks or less. Have an impact as a part of the team that is building a platform to handle the thousands of model experiments per day needed to support everything from ranking and recommendations, through content moderation and fraud prevention, to studio creative tooling.

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$233,840—$283,780 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.