Brain+AI

Technical lead role

Lead e-commerce developer

Part of our business acquires profitable online stores to scale them. Every acquisition comes with its own platform, apps and habits. We are looking for the person who designs the shared architecture of these brands and takes ownership of it.

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Remote Freelance

The role

You migrate the brands we acquire from their legacy platforms (Shopify, PrestaShop and others) to Medusa. The goal is a scalable, AI ready infrastructure that improves the performance of every store in the portfolio: catalogue, speed, conversion, data. You also put AI agents to work, so that each migration goes faster than the last.

What you will do

  • Design the Medusa architecture shared by the portfolio brands, and evolve it.
  • Migrate catalogues, customers, orders and addresses from Shopify or PrestaShop, with redirects checked one by one.
  • Connect marketing and technical tools through APIs and MCP: product feeds, advertising, email, reviews, payment, logistics.
  • Open the catalogue and orders to AI agents, with only the rights they need.
  • Measure the speed, conversion and errors of every store, and fix them.

What we expect

  • You have already shipped and run an online store in production, ideally headless.
  • You know Medusa, or you master Node.js and TypeScript well enough to pick it up fast.
  • APIs, webhooks, MCP servers and third party tool integrations are part of your daily work.
  • You understand the modern e-commerce marketing environment: product feeds, conversion tracking, advertising, email, marketplaces.
  • You are comfortable working in written French and English.

The terms

  • Fully remote, from wherever you like.
  • Freelance contract, working time agreed together: a few days a month or full time.
  • Pay is stated from the first conversation, depending on the role and the time involved.
  • The tools and AI subscriptions needed for the work are provided.

How to apply

  1. Write to us

    Through the contact form, with the role already filled in. Add a link to something you have made, with or without AI.

  2. A first conversation

    A video call to talk about the role, the way you work and the pay.

  3. A short exercise

    A real topic, handled with the tools of your choice. We look at the approach as much as the result: imperfect but well reasoned work beats a polished output with no visible process.

  4. A first assignment

    If the exercise works for both of us, you start on a real project.

Other roles

Systems and DevOps

You own the technical side of the whole organisation: the tools, workflows and infrastructure of every project, so that it stays simple, solid and token efficient.

Marketing and content

You run the agents that write our articles, pages and newsletters, and you decide what deserves to be published.

Automation and CRM

You build our clients’ n8n workflows and Twenty CRMs, with AI only where a rule is not enough.

Client projects

You are the client’s contact from scoping to delivery, and you split the work between the agents and the team.

Business development

You find the companies our offers save time for, with agents preparing the ground and you leading the conversation.

Does a role speak to you?

Write to us in two lines with a link to your work. We answer every application.

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