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# Ai-Driven Backend-First Full Stack Engineer

- **Company:** Pillar
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Backend, Front End Software Development
- **Published:** October 31, 2026
- **Apply:** https://www.buscojobs.com.es/ai-driven-backend-first-full-stack-engineer-en-barcelona-ID-378856301

## About the Role

You will own features end-to-end, shaping backend data models, APIs, and product architecture while collaborating with frontend when needed.
Italian or Spanish native is mandatory, plus professional English.
We value startup/scaleup experience, AI-native thinking, and the willingness to move fast in a small, autonomous squad as Pillar scales.
#J-*****-Ljbffr

## Description

Pillar is hiring a product-minded Full Stack Engineer with backend depth to build the core of our platform in Milan or Barcelona.You will own features end-to-end, shaping backend data models, APIs, and product architecture while collaborating with frontend when needed.Italian or Spanish native is mandatory, plus professional English.We value startup/scaleup experience, AI-native thinking, and the willingness to move fast in a small, autonomous squad as Pillar scales.#J-*****-Ljbffr