Senior AI Infrastructure Engineer - Scale & Tooling

Roblox; San Mateo (CA); On-site; USD 196,750 - 243,290; Full time

Benefits offered by this job

Equity compensation

Benefits

Job summary

Roblox is seeking a seasoned engineer to help build the agentic AI system powering creation for millions of Roblox creators. You’ll own design, development, testing, and deployment of services within Roblox, tackling diverse challenges across complex systems and elevating code quality and architecture.

You will mentor teammates and help shape scalable AI infrastructure. The role requires leadership in AI systems, multi-step execution loops, and building reliable tool interfaces for scalable

Qualifications

• 5+ years 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 infrastructure, including systems for model serving, orchestration, reliability, and production observability.
• Familiarity with agentic systems and multi-step execution loops, including planning, tool use, recovery, and long-running workflows.
• Understanding of tools, skills, and evaluation frameworks for AI systems, including how to design reliable tool interfaces, improve capability coverage, and measure quality through structured evals.
• Expertise in component-based libraries and frameworks, with a strong grasp of building performant, high-quality user experiences.

Responsibilities

• Help and understand the needs of the Roblox community, from artists to professional scripters and designers.
• Take ownership and responsibility for designing, building, testing, and deploying services within the Roblox ecosystem.
• 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.

Skills

Software architecture

AI infrastructure

Agentic systems

Tool interfaces design

Programming (C++)

Programming (C#/Java)

SQL/NoSQL at scale

Distributed systems

Leadership

Job description

Roblox is seeking a seasoned engineer to help build the agentic AI system powering creation for millions of Roblox creators. You’ll own design, development, testing, and deployment of services within Roblox, tackling diverse challenges across complex systems and elevating code quality and architecture.

You will mentor teammates and help shape scalable AI infrastructure. The role requires leadership in AI systems, multi-step execution loops, and building reliable tool interfaces for scalable