You'll build the agentic AI system that powers creation for millions of Roblox creators. The Assistant team is converging Studio Assistant (desktop) and Build (mobile) into a single cloud-native architecture - one harness, one tool set, one eval framework. You'll work across the full stack: cloud orchestration, LLM integration and model routing, tool/skill execution, and the creator-facing client. The system orchestrates multi-step creation workflows end-to-end: planning, code generation, asset creation, and automated testing.
You Will:
- Help and understand the needs of the community that uses our software, from beginning 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.
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 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.
- Proficiency in C++, C#, Java, or similar programming languages.
- Strong understanding of SQL and NoSQL systems at scale.
- Deep understanding of the components required to build modern large-scale infrastructure, with the judgment to evaluate tradeoffs, recommend pragmatic solutions, and align engineers around a direction.