? We’re building Mainloop AI in Barcelona: a new AI-native team that goes into businesses, understands how work really happens, and builds working automation in weeks — not months.

Mainloop AI is being created to automate professional-services work across roughly 15 countries. The team will focus on the processes where time disappears: manual admin, approvals, reconciliations, handovers, recurring spreadsheets, and workflows that have never been properly automated.

This role is for the first half of that mission: going into the business, understanding the real process, building a fast MVP with AI agents, proving whether it is worth scaling — and then handing it over properly to the product and engineering team that will take it further.

We’re now hiring Forward Deployed Engineers to join Mainloop AI in Barcelona.

What you’ll do
You’ll work at the intersection of engineering, consulting and product. A project may start as a sentence — “our people spend two days a month reconciling this by hand” — and from there, you make it real.

Your responsibilities will include:




Going into the business, often in person, to understand how a process actually works.
Sitting with the people doing the work, not just relying on the process as described by management.
Mapping workflows, pain points, actors, rules, data flows and business impact.
Checking what already exists in our portfolio before building anything new.
Writing the functional architecture that agents and engineers can build from.
Using AI coding agents to move from idea to working prototype quickly.
Building MVPs that can be tested with real users.
Running feedback loops with stakeholders and improving the product through each iteration.
Quantifying the benefit and being able to say when something is not worth automating.
Onboarding early users and making sure the MVP is actually adopted.
Creating a clear handover pack for the Product Owner and engineering team.

You take projects from zero to MVP. You do not carry

📌 Forward Deployed Engineer (San Cugat del Vallés)
🏢 Leyton
📍 San Cugat del Vallés