Senior Machine Learning Engineer: Creator Tools & Automation

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 founding engineer on the Creator Intelligence team, you will build AI-powered products and platforms that empower Roblox to support and scale its developer community. Partnering closely with Creator Relations teams, you will develop agentic systems, data pipelines, and interactive tools designed to deliver proactive insights, automated briefings, and self-serve recommendations to creators worldwide. You will take ownership across the full stack, from LLM orchestration and eval frameworks to user-facing applications, consolidating early prototypes into a cohesive, production-grade platform.

You Will:

• Help and understand the needs of the community that uses our software, from internal Creator Relations teams to developers of every size around the world.
• Take ownership and responsibility for designing, building, testing, and deploying services within the Roblox ecosystem.
• Turn early prototypes and team-built tools into reliable, scalable, production-quality products.
• Work on a variety of unique technical challenges within complex systems.
• Be a technical bar-raiser for high code quality, architectural designs, and long-term planning.
• Develop fellow engineers on the team.

You Have:

• 5+ years of experience shipping high-complexity software and supporting mission-critical applications at scale.
• Experience architecting, designing, and leading implementation across a wide range of software products and systems.
• Experience building AI-powered products in production, including LLM integration, orchestration, reliability, and observability.
• Familiarity with agentic systems and multi-step execution loops, including planning, tool use, retrieval, recovery, and long-running workflows.
• Understanding of tools, skills, and evaluation frameworks for AI systems, including how to design reliable tool interfaces and measure quality through structured evals.
• Experience building data pipelines and turning large-scale behavioral and business data into signals, scores, and recommendations.
• Expertise in component-based libraries and frameworks, with a strong grasp of building performant, high-quality user experiences.
• Proficiency in C++, C#, Java, Python, or similar programming languages.
• Strong understanding of SQL and NoSQL systems at scale.
• Comfort working in ambiguity on a new team, partnering closely with product and non-engineering stakeholders to define what gets built.

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 as described on this page.

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

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 to candidates with qualifying disabilities or religious beliefs during the recruiting process.

For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.