Labhouse is a Barcelona-based startup studio building AI-powered mobile apps used by hundreds of thousands of people worldwide. Our products — including Invoice Fly and Summary AI — are designed to make everyday tasks faster, smarter, and simpler through a subscription model that puts the user first.
We were founded by Andrés Bou and Horacio Martos, the duo behind SocialPoint (acquired by Take-Two Interactive), and we operate with the mindset of a product company: small teams, high ownership, and a relentless focus on building things that matter.
We're now looking for a Lead Backend Engineer to own one of our most technically ambitious greenfield projects — and eventually grow a team around it. ?

About the Role
We're building something new in-house — a greenfield backend system that sits at the intersection of mobile, data, and growth infrastructure. The details are under wraps for now, but the challenge is real: you'll design and build this from scratch, with full ownership over the architecture, the stack, and the technical decisions.
You'll start as an IC,



then grow a team around what you build.
What you'll do:
- Architect and build a complex, high-scale backend system from the ground up — greenfield, no legacy constraints
- Choose and own the technology stack; we're open to the right tool for the job
- Design reliable, low-latency data pipelines and the APIs that power the product
- Work closely with Growth and Product teams to ensure the system delivers the right data for decision-making
- Lay the technical foundation with future team growth in mind — your architecture decisions will shape how this team scales

About You
Academic Background:
- You hold a degree in Computer Science, Software Engineering, or a related technical field. Strong academic foundations in distributed systems, data engineering, or backend architecture are a plus.

Technical expertise:
- 7+ years of backend engineering experience, with a strong track record of building complex, high-scal

📌 Lead Backend Engineer Data Platform (Barcelona)
🏢 Labhouse
📍 Barcelona