Ofertas de Founding Engineer en Santander

We are building the autonomous backbone for the modern B2 C law firms We are live, in production, and backed by a sophisticated architecture featuring multi-agent pipelines, durable workflows, and context engineering. We are now looking for a driven Full-Stack Engineer to join our founding team in B

About the roleAI-native engineer who will own critical pieces of the operating system for regulation we are building at Reversa. Extreme ownership and close work with the three co-founders. About Reversa Reversa is the operating system for regulation. Six months in, with ~100% Mo M growth, Fortune 5

Musive

Musive es una plataforma Saa S de colaboración y gestión de archivos para artistas y productores musicales. Estamos en mercado desde febrero de 2026 con apps en i OS, Android y web. Tenemos producto, usuarios reales, financiación cerrada (ENISA + capitalización, 24 meses Runway ) y una visión clara:

About the roleHybrid role: commercial intuition and regulatory depth on one side, real technical skill and AI-native instincts on the other. You will own a vertical of the product. Reversa is the operating system for regulation. Six months in, with ~100% Mo M growth, Fortune 500 customers already tr

Actual Talent Spain

60.000 € - 80.000 € /año

***** SHORT VERSION *****We're building an AI-native platform with autonomous agents, smart workflows, and real-time voice interactions. Looking for a Full-Stack Engineer. Salary: €60k-€80kHybrid: BCN 3 Days, Remote: 2 Days. Don't apply if you're not from Barcelona.Team: of 3 co-founders now. 6 by t

Actual Talent Spain

60.000 € - 80.000 € /año

Full-Stack Engineer sought to design and build scalable solutions. Hybrid work model with international team collaboration.

Sprint and Partners

Experience with core payment systems is mandatory: ledgers, reconsiliation, settlements, billing, invoicing, etc. You do not need to be an expert in all of them but you need knowledge in the payments domain. A rare opportunity to join the founding Engineering team of a high potential startup with so

Foster Hughes

An innovative technology start-up in Spain is seeking one of the first engineers to develop advanced technology for diagnosing electric vehicle batteries. You will test solutions, connect to vehicles for diagnostics, and integrate new models. Ideal candidates have a strong understanding of communica

Veriff

A leading identity verification company in Spain is seeking a Founding Engineer to help build agentic AI systems. The role demands 6+ years of backend systems experience and skills in Python, distributed systems, and LLM-powered workflow development. You will design and implement systems that can re

Brytspace

Founding Full-Stack Engineer I Tech Lead Aunque la experiencia profesional y las cualificaciones son clave para este puesto, asegúrese de comprobar si posee las habilidades interpersonales preferibles antes de solicitar, si se requieren. Sobre el reto Estamos en esa fase de una startup que es, a la

Brytspace

Founding Full-Stack Engineer I Tech LeadSobre el retoEstamos en esa fase de una startup que es, a la vez, la más divertida. Tenemos producto, tenemos tracción y tenemos un equipo técnico de tres personas con ganas de comerse el mundo. Lo que no tenemos es a la persona que ponga orden en la arquitect

Brytspace

Founding Full-Stack Engineer I Tech Lead Sobre el reto Estamos en esa fase de una startup que es, a la vez, la más divertida. Tenemos producto, tenemos tracción y tenemos un equipo técnico de tres personas con ganas de comerse el mundo. Lo que no tenemos es a la persona que ponga orden en la arquite