AI-Native Full-Stack Engineer — Own Production, Barcelona

Leyton; Sant Cugat del Vallès; Presencial; EUR 70.000 - 100.000; Jornada completa

Descripción de la vacante

Mainloop Barcelona is seeking Full-Stack Engineers to join an AI-native engineering team. Based in Barcelona, you will help build production software from scratch, growing with the company as it scales and externalises its products over the next 18 months.

Two levels exist: four junior seats and one senior seat. You will collaborate with a Product Owner to own architecture, quality, and release, while shaping the product across a varied portfolio and new projects every quarter.

Formación

• Build production-grade web apps front to back
• Experience with coding agents and an AI-native workflow
• Willing to join a Barcelona-based team and grow quickly

Responsabilidades

• Own architecture and release for assigned products

Conocimientos

Full-stack web

Herramientas

Claude Code

Cursor

Codex

Descripción del empleo

Mainloop Barcelona is seeking Full-Stack Engineers to join an AI-native engineering team. Based in Barcelona, you will help build production software from scratch, growing with the company as it scales and externalises its products over the next 18 months.

Two levels exist: four junior seats and one senior seat. You will collaborate with a Product Owner to own architecture, quality, and release, while shaping the product across a varied portfolio and new projects every quarter.