Senior Full-Stack Developer — AI‑Driven SaaS (React/Node/TS)

Joppy; Madrid; Híbrido; EUR 65.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work options in Madrid

Sustainable mobility options

Fun team events

Global team collaboration

Descripción de la vacante

Joppy is seeking Senior Full-Stack Developers to join a hybrid Madrid team. You will design, build, and refine a serverless, enterprise-grade platform for international clients, using Node.js/TypeScript on the backend and React.js on the frontend.

You’ll work in small, agile squads and contribute to architecture decisions while mentoring juniors. Requirements include 4+ years in full-stack development, startup/SAAS experience, and strong English communication.

Formación

• 4+ years of full-stack development experience with Node.js/TypeScript and React.js.
• Experience in startups, SAAS or product companies is mandatory.
• Hands-on experience with AI-guided development practices and AI-driven engineering environments.
• Strong REST web services experience and Git version control.
• Excellent English communication (C1); German/Spanish a plus.

Responsabilidades

• Design, build, and optimize full-stack features using Node.js/TypeScript on the backend and React.js on the frontend.
• Develop and enhance software solutions that automate complex compliance workflows.
• Collaborate in small, agile squads (4-6 people) with PMs, designers, and engineers.
• Ensure high-quality, secure code with reviews, tests, and CI/CD.

Conocimientos

Node.js

TypeScript

React.js

REST

Git

English (C1)

Agile

Product mindset

Team collaboration

AI-guided development

Descripción del empleo

Joppy is seeking Senior Full-Stack Developers to join a hybrid Madrid team. You will design, build, and refine a serverless, enterprise-grade platform for international clients, using Node.js/TypeScript on the backend and React.js on the frontend.

You’ll work in small, agile squads and contribute to architecture decisions while mentoring juniors. Requirements include 4+ years in full-stack development, startup/SAAS experience, and strong English communication.