Senior Full-Stack Engineer — Remote & Flexible Hours

AgileEngine; Madrid; Híbrido; EUR 77.000 - 112.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Flextime

Professional growth

Competitive compensation

Descripción de la vacante

AgileEngine in Madrid is seeking a Senior Full Stack Developer to build user-facing features in React and maintain robust Node.js back-end services for an international product team.

You will architect full-stack solutions with expert-level JavaScript and TypeScript, optimize performance across web platforms, implement automated testing with Jest and React Testing Library, and collaborate closely with cross-functional teams to deliver production-ready features.

Formación

• 4+ years of professional web development experience.
• Expert-level knowledge of Node.js, React, and modern JavaScript/TypeScript.
• Experience with automated unit testing and test-driven development using Jest, React Testing Library, and Mocha/Chai.
• Strong understanding of performance issues and secure data handling.
• Excellent communication across international teams.
• Upper-intermediate English proficiency.

Responsabilidades

• Develop user-facing features in React and maintain robust Node.js backend services.
• Architect full-stack solutions integrating frontend and API services.
• Optimize components for performance across devices and browsers.
• Collaborate with cross-functional teams to ship new features.

Conocimientos

JavaScript

TypeScript

React

Node.js

Web development

State management (Redux/Context)

Performance optimization

Testing (Jest, RTL, Mocha/Chai)

English (Upper-intermediate)

Herramientas

Redux

Context API

Jest

React Testing Library

Mocha/Chai

Descripción del empleo

AgileEngine in Madrid is seeking a Senior Full Stack Developer to build user-facing features in React and maintain robust Node.js back-end services for an international product team.

You will architect full-stack solutions with expert-level JavaScript and TypeScript, optimize performance across web platforms, implement automated testing with Jest and React Testing Library, and collaborate closely with cross-functional teams to deliver production-ready features.