Full Stack Engineer

Trust In SODA; Santander; A distancia; EUR 50.000 - 80.000; Jornada completa

Descripción de la vacante

An innovative AI startup in Spain is seeking a Fullstack Engineer to join their team. This 100% remote role involves building real-time generative AI systems. Ideal candidates will have solid experience with Ruby on Rails, React, and SQL databases, particularly PostgreSQL. Enjoy working in a flexible environment with a high-impact team and equity options.

Servicios

Flexible hours

Equity included

Formación

• Experience building production-scale APIs and tooling.
• Proficiency in database design and API development.
• Strong GitHub or code samples showcasing technical depth.

Responsabilidades

• Build the GenAI behind various products.
• Own systems from backend architecture to UI.
• Work on real-time generative AI applications.

Conocimientos

Solid fullstack experience in startup or product-led teams

Proficiency in Ruby on Rails (v6+)

Experience with React (v17+)

Strong JavaScript skills (including ES6+)

SQL Databases, ideally PostgreSQL

Ability to design and deploy production-ready features

Herramientas

Ruby on Rails

React

Docker

Kubernetes

AWS

GitHub

Descripción del empleo

Fullstack Engineer – Series B AI Startup | Spain (100% Remote)

I’m partnered with a fast‑scaling AI startup, fresh off a Series B raise, looking for an early hire Developer to shape the next generation of their platform. You'll build the GenAI behind some of the products that you use every single day.

This is a role for hands‑on builders who enjoy owning systems end‑to‑end, from backend architecture to clean, functional UI. You’ll work on production‑scale APIs, and tooling that powers real‑time generative AI applications.

You’ll work with

• Ruby on Rails, React, TypeScript
• RESTful APIs and PostgreSQL (Prisma)
• Containerisation and orchestration (Docker, Kubernetes)
• CI / CD (GitLab, GitHub Actions), AWS / GCP
• Testing (RSpec, Jest, React Testing Library)

You bring

• Solid fullstack experience in startup or product‑led teams
• Strong hands‑on background with Ruby on Rails (v6+), React (v17+), JavaScript (incl. ES6+)
• SQL Databases, ideally PostreSQL
• Ability to design, build, and deploy production‑ready features end‑to‑end
• Proficiency in database design, API development, and performance optimisationSolid GitHub or code samples that show technical depth and curiosity

Why join

• Series B funding and strong traction with enterprise, media, and government clients
• Work directly on real‑time generative AI systems at production scale
• Collaborate with senior engineers in a small, high‑impact team with no bureaucracy
• Own architecture decisions, ship fast, and see your work go live in weeks
• 100% remote across Europe | Flexible hours | Equity included

If you want to build the infrastructure and interfaces that make AI talk, get in touch