Senior Engineer, Agent Infrastructure (Scale & Security)

Roblox; San Mateo (CA); On-site; USD 279,000 - 345,000; Full time

Job summary

Roblox in San Mateo, CA is seeking an experienced senior engineer to own the design and implementation of Roblox’s core agent infrastructure, scaling to serve every internal and external customer.

You will drive reliability and security by keeping long-running agents alive through deploys, sandboxes, and observability. This role requires hands-on coding in Go/Python/Rust and leadership across teams.

Qualifications

• 8+ years building and operating backend, distributed, or infrastructure systems in production.
• Expertise in at least one core domain: workflow orchestration, scalable backend infrastructure, agent runtimes, or secure sandboxing and access.
• Hands-on: production code in Go, Python, Rust, or similar.
• Bachelor’s degree or equivalent in Computer Science, Computer Engineering, or a similar technical field.

Responsibilities

• Set the technical direction: Own the design and implementation of Roblox’s core agent infrastructure, and scale it to serve every internal and external customer.
• Drive reliability and security: Keep long-running agents alive through deploys, restarts, and outages. Run untrusted code in sandboxes that keep credentials out of the agent’s reach and control what it can reach on the network. Define the SLOs and observability that hold the platform to account.
• Raise the bar: Keep learning and experimenting with agentic workflows, and bring what works to the team and the wider Foundation AI org.
• Align across the org: Partner with Security, Engineering Efficiency, and Infrastructure so the agent platform and the systems it depends on are built in the same direction.
• Multiply the team: Mentor senior engineers, lead design reviews, and push how far agents can build the agent platform itself.

Skills

Backend systems

Distributed architecture

Go

Python

Rust

Agent infra

Education

Bachelor's degree in Computer Science or Engineering

Tools

Kubernetes

AWS

Temporal

Job description

Roblox in San Mateo, CA is seeking an experienced senior engineer to own the design and implementation of Roblox’s core agent infrastructure, scaling to serve every internal and external customer.

You will drive reliability and security by keeping long-running agents alive through deploys, sandboxes, and observability. This role requires hands-on coding in Go/Python/Rust and leadership across teams.