Full Stack Engineer

Trust In SODA; Madrid; A distancia; EUR 55.000 - 80.000; Jornada completa

Descripción de la vacante

A fast-scaling AI startup is seeking a Fullstack Engineer to shape the next generation of their platform. You will build production-scale APIs and work on real-time generative AI applications. The ideal candidate should have solid experience with Ruby on Rails, React, and a strong understanding of API development and database management. This role is 100% remote with flexible hours and equity included.

Servicios

Flexible hours

Equity included

Work directly on real-time generative AI systems

Formación

• Solid fullstack experience in startup or product-led teams.
• Strong hands-on background with Ruby on Rails (v6+), React (v17+), JavaScript (incl. ES6+).
• Ability to design, build, and deploy production-ready features end-to-end.

Responsabilidades

• Build the GenAI for production-scale applications.
• Work on backend architecture and functional UI.
• Develop real-time generative AI features.

Conocimientos

Ruby on Rails

React

TypeScript

RESTful APIs

PostgreSQL

Docker

Kubernetes

GitLab

GitHub Actions

RSpec

Jest

React Testing Library

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