Senior Software Engineer: Assistant (AI)

Location: San Mateo, California, United States. Office-based roles require onsite presence Tuesday through Thursday, with optional presence on Monday and Friday.

Salary: $196,750–$243,290 USD annual base pay, plus potential equity compensation and benefits.

Company

Roblox builds a 3D immersive digital platform and tools that enable developers and creators to design interactive experiences.

What you will do

• Build the agentic AI system powering creation workflows for millions of Roblox creators.
• Contribute to a unified cloud-native architecture connecting Studio Assistant and Build across desktop and mobile.
• Design, build, test, and deploy services covering cloud orchestration, LLM integration, model routing, tool execution, and creator-facing clients.
• Develop end-to-end workflows for planning, code generation, asset creation, and automated testing.
• Raise the technical bar through high-quality code, strong architecture, long-term planning, and engineering mentorship.

Requirements

• 5+ years of experience shipping complex software and supporting mission-critical applications at scale.
• Experience architecting, designing, and leading implementation across varied software products and systems.
• Experience building AI infrastructure for model serving, orchestration, reliability, and production observability.
• Familiarity with agentic systems, multi-step execution loops, tool use, recovery, long-running workflows, and structured evaluation frameworks.
• Expertise in component-based libraries and frameworks, performant user experiences, and C++, C#, Java, or similar languages.
• Strong knowledge of SQL, NoSQL systems, and modern large-scale infrastructure design and trade-offs.

Culture & Benefits

• Work on technical challenges at scale for a global community of creators and users.
• Full-time employees are eligible for equity compensation and company benefits.
• Roblox does not currently support future H-1B sponsorship for this US-based role and may be unable to employ candidates with certain US visa-related work authorizations.
• Reasonable accommodations are available during the recruiting process for qualifying disabilities or religious beliefs.