Staff Engineer, Developer Experience for AI Agent Runtime

Runta; San Mateo (CA); Hybrid; USD 140,000 - 210,000; Full time

Job summary

Runta builds runtime infrastructure that enables AI agents to execute reliably over long time horizons. The role focuses on creating the SDK and CLI through which developers run, snapshot, branch, and replay agents, while shaping long-term API decisions and the developer experience.

You will craft examples, quickstarts, and reference docs that translate complex runtime semantics into approachable tools, messages, and onboarding flows for builders of AI agents.

Qualifications

• Built developer-facing product surfaces: an SDK, a CLI, a public API, or a devtools product.

Responsibilities

• Design and build Runta’s SDK and CLI: the primary surface through which developers run, snapshot, branch, and replay agents.
• Make API design decisions with long consequences: what to expose, what to hide, what to name things.
• Build the examples, quickstarts, and reference docs that take a developer from curiosity to a running agent.
• Turn runtime capabilities into product language: translating “microVM snapshot semantics” into things agent builders immediately want.
• Feel every rough edge first and fix it: error messages, failure modes, onboarding friction.
• Represent the developer inside the company: your feedback shapes what the runtime team builds next.

Skills

SDK design

CLI design

Public API

Docs writing

Job description

Runta builds runtime infrastructure that enables AI agents to execute reliably over long time horizons. The role focuses on creating the SDK and CLI through which developers run, snapshot, branch, and replay agents, while shaping long-term API decisions and the developer experience.

You will craft examples, quickstarts, and reference docs that translate complex runtime semantics into approachable tools, messages, and onboarding flows for builders of AI agents.