SDK & CLI Engineer for AI Agent Platform

Runta; San Francisco (CA); On-site; USD 150,000 - 200,000; Full time

Benefits offered by this job

Meaningful equity

Standard benefits

Job summary

Runta, a San Francisco Bay Area startup, is seeking a mid-level engineer to own developer-facing surfaces. You’ll shape the SDK, CLI, and public API, aiming for a delightful, fast experience that developers actually want to use.

You’ll translate runtime abstractions into concrete product language, write clear docs and examples, and ship quickstarts that turn curiosity into a running agent. You’ll work directly with the founder and the runtime team to balance usability with powerful capabilities.

Qualifications

• Built developer-facing product surfaces such as SDKs, CLIs, public APIs, or devtools.
• Exceptional API taste with defensible opinions about what to expose or hide.
• Clear writing for docs, examples, and error messages.

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, and how 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 complex concepts into actionable items for developers
• Address rough edges: improve error messages, onboarding, and failure modes
• Represent the developer inside the company: feedback shapes future runtime team work

Skills

API design

Documentation writing

DX

Open source experience

Tools

SDK

CLI

Public API

Docs tooling

Job description

Runta, a San Francisco Bay Area startup, is seeking a mid-level engineer to own developer-facing surfaces. You’ll shape the SDK, CLI, and public API, aiming for a delightful, fast experience that developers actually want to use.

You’ll translate runtime abstractions into concrete product language, write clear docs and examples, and ship quickstarts that turn curiosity into a running agent. You’ll work directly with the founder and the runtime team to balance usability with powerful capabilities.