Principal GenAI Platform Architect

Roblox Corporation; San Mateo (CA); On-site; USD 329,000 - 362,000; Full time

Job summary

Roblox Corporation is seeking a Principal Software Engineer for the GenAI Platform to shape multi‑year architecture for ML, generative AI, and agent infrastructure across Roblox.

You will define technical strategy, own platform reliability and scaling, and mentor teams while partnering with product, research, data, safety, and engineering leaders. 8+ years and Go/Python/Rust expertise required. Onsite at our San Mateo campus.

Qualifications

• Undergraduate/graduate degree in computer science or equivalent practical experience.
• 8+ years building and operating large-scale production software and distributed systems.
• Foundational systems or platform ownership with organization-wide impact.
• Deep expertise in ML, generative AI, distributed systems, data infrastructure, or developer platforms.
• Proficiency in Go, Python, or Rust and tooling judgment for durable systems.
• History of setting technical direction across multiple teams.
• Excellent communication and influence to align engineers, product, and leadership.

Responsibilities

• Define the multi-year technical vision and architecture for ML, generative AI, and agentive experiences.
• Drive high-leverage, ambiguous problems on the platform from framing to production across inference and information retrieval infrastructure.
• Establish standards, guardrails, and self-serve capabilities for multi-tenant usage and onboarding.
• Make foundational trade-offs in quality, latency, cost, and data governance at Roblox scale.
• Own platform operations: SLOs, capacity planning, on-call, incident response, graceful degradation.

Skills

Go

Python

Rust

Distributed systems

Machine learning

Communication

Education

Bachelor's degree in CS or related field

Job description

Roblox Corporation is seeking a Principal Software Engineer for the GenAI Platform to shape multi‑year architecture for ML, generative AI, and agent infrastructure across Roblox.

You will define technical strategy, own platform reliability and scaling, and mentor teams while partnering with product, research, data, safety, and engineering leaders. 8+ years and Go/Python/Rust expertise required. Onsite at our San Mateo campus.