Remote AI Platforms Engineer (MCP & Agent Tools)

Sanity

United States

Hybrid

USD 140,000 - 200,000

Full time

14 days+

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Job summary

Sanity is hiring for an engineer to advance our AI-native development stack, focusing on the MCP server and agentic tooling. You will build scalable developer tools, from generating Sanity apps to frontend code, while crafting evals for prompt and model improvements.

Based in Remote US or San Francisco Bay Area, you will contribute across frontend and backend, with a mix of remote and in-person collaboration.

Qualifications

Strong TypeScript, React and Node.js skills.
Experience shipping AI-powered code or AI-enabled tooling.
Ability to work across frontend and backend.

Responsibilities

Advance our MCP server – add new capabilities, tools, and integrations that let AI agents interact deeply with Sanity's content platform.
Build agentic developer tools – ship systems that can generate Sanity apps and studios, as well as frontend code with minimal human guidance.
Design and run evals – build evaluation suites using Braintrust to catch regressions, measure improvements, and make data-driven decisions about prompt and model changes.
Build a Sanity MCP app – create rich React interfaces on top of the MCP protocol for platforms like ChatGPT Apps SDK and Claude.
Move across the stack daily – one day you're designing a new MCP tool, the next you're polishing a React component or deploying a new microservice.
Apply prompt engineering craft – diagnose why models fail, steer them effectively, and build intuition for what makes prompts work at scale.
Ship production AI features – write clean, well-tested TypeScript and turn experiments into reliable capabilities that thousands of developers use.
Collaborate with the team – work closely with design, product, and engineering to iterate quickly and share what you learn.