CareerPlan

Principal Software Engineer, Agent Infrastructure

San Mateo, CAFull-time$279k2026-10-13 → 2026-11-10
HybridNo visa sponsorship

Core

Building and operating infrastructure for autonomous AI agents at Roblox, ensuring safety, reliability, and scalability for millions of creators.

Role type

Principal Software Engineer, Agent Infrastructure

Builds

Roblox's core agent infrastructure serving internal and external customers

Domain

AI Agents, Distributed Systems, Infrastructure Security

Deliverable

production ML models

Required skills

Backend system design, distributed systems, workflow orchestration, agentic runtimes, secure sandboxing, Go/Python/Rust, Kubernetes, observability, SLO definition, team mentorship

Preferred skills

gVisor, Firecracker, microVMs, Temporal, AWS, self-hosted models, GitOps, Argo CD, open source contributions

Responsibilities

Design and implement core agent infrastructure, maintain long-running agent reliability during deploys and outages, define security boundaries for untrusted code, set SLOs and observability standards, mentor senior engineers, align with Security and Infrastructure teams

Seniority

Principal, hands-on IC with strategic direction