We're looking for a Freelance Senior Full-Stack AI Engineer (Vercel v0 / LLM Systems)

100% remote

6 months

Full time

The challenge

Turning a generative model into a system you can trust in production. The team is building the technical harness around Vercel's v0 Platform API: the rulesets, quality gates, sandboxes and fallbacks that make AI-generated storefronts actually shippable, plus the Git and deployment automation that gets them live without a human in the loop.

What you will do

Integrate and work extensively with the Vercel v0 Platform API and SDK

Build production-grade LLM workflows: streaming, tool and agent loops, structured outputs

Develop full-stack functionality with ReactJS, TypeScript, Next.js, Node.js, REST and GraphQL APIs, PostgreSQL

Build the harness around the models: custom rulesets, execution logic, quality gates, design-system constraints

Implement error handling, fallback mechanisms and execution sandboxes for generated code

Automate Git workflows via the GitHub API: programmatic branches, commits, pull requests





Automate provisioning and deployment through Vercel and/or Netlify APIs, including custom domains and deployment webhooks

What we need

6+ years of engineering experience, senior level

Strong production experience with LLM-based applications: streaming architectures, tool and agent loops, structured output

ReactJS, TypeScript, Next.js, Node.js, REST and GraphQL, PostgreSQL

Hands-on with the GitHub API for programmatic branch, commit and PR workflows

Experience automating deployments with Vercel and/or Netlify APIs

Fluent / business English

Available to start October 1st at the latest

Able to invoice as a freelancer or through your own company (B2B / Ltd)

Hands-on production experience with the Vercel v0 Platform API and v0 SDK

Experience designing quality gates or design-system enforcement for AI-generated interfaces

Experience with execution sandboxes for untrusted or generated code

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📌 Remote Software Architect (Barcelona)
🏢 Shakers
📍 Barcelona