Senior Machine Learning Engineer: Creator Tools & Automation (AI)

Location: San Mateo, California, United States. Hybrid office schedule: onsite Tuesday, Wednesday, and Thursday; optional presence on Monday and Friday.

Annual salary: $243,290–$295,250 USD, plus potential equity compensation and benefits.

Company

Roblox builds a 3D immersive digital platform and tools that enable developers and creators to create, publish, and share interactive experiences.

What you will do

• Build AI-powered products and platforms for the Roblox developer and creator community.
• Design and develop agentic systems, data pipelines, interactive tools, proactive insights, automated briefings, and self-serve recommendations.
• Own the full product stack, including LLM orchestration, evaluation frameworks, backend services, and user-facing applications.
• Turn early prototypes and team-built tools into reliable, scalable, production-quality products.
• Design, build, test, and deploy services within the Roblox ecosystem while addressing complex technical challenges.
• Raise the technical bar through high-quality code, architecture, long-term planning, and mentoring fellow engineers.

Requirements

• 5+ years of experience shipping high-complexity software and supporting mission-critical applications at scale.
• Experience architecting, designing, and leading implementation across a broad range of software products and systems.
• Production experience building AI-powered products, 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 AI tools, skills, and evaluation frameworks, including reliable tool interfaces and structured quality evaluations.
• Experience building data pipelines and converting large-scale behavioral and business data into signals, scores, and recommendations.
• Expertise in component-based libraries and frameworks, including performant, high-quality user experiences.
• Proficiency in C++, C#, Java, Python, or similar programming languages.
• Strong understanding of SQL and NoSQL systems at scale, plus comfort working in ambiguity and partnering with product and non-engineering stakeholders.

Culture & Benefits

• Work on technical challenges at scale related to safer, more civil shared digital experiences.
• Collaborate with Creator Relations teams and developers of different sizes worldwide.
• Full-time employees are eligible for equity compensation and company benefits.
• Roblox provides equal employment opportunities and reasonable accommodations during the recruiting process.
• For US-based roles, the company may not be able to employ candidates with certain US visa-based work authorization categories and does not currently support future H-1B sponsorship.