Senior Full Stack Developer ID80055

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 is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

WHY JOIN US

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!

ABOUT THE ROLE

We are looking for a Senior Full Stack Developer to build user-facing features in React and maintain robust Node.js backend services for an international product team. You will architect and implement 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. The role requires strong state management experience and a thorough understanding of component-driven design patterns and secure data handling.

WHAT YOU WILL DO

• Develop user-facing features using modern React workflows while building and maintaining robust Node.js backend services;
• Architect and implement full-stack solutions, ensuring seamless integration between the front-end UI and back-end APIs;
• Optimize components for maximum performance across a wide range of web-capable devices and browsers;
• Collaborate with cross-functional teams to define, design, and ship new features.

MUST HAVES

• 4+ years of professional web application development experience;
• Expert-level knowledge of Node.js, React, and modern JavaScript/TypeScript;
• Broad knowledge of web platforms, browser APIs, state management using Redux or Context, and styling strategies;
• Superior analytical and problem-solving ability;
• Experience with automated unit testing and test-driven development using Jest, React Testing Library, and Mocha/Chai;
• Robust understanding of performance issues, computational complexity, and full-stack code optimization;
• Familiarity with industry-standard algorithms, component-driven design patterns, and secure data handling;
• Effective communication skills to work with different teams across an international company;
• Upper-intermediate English level.

PERKS AND BENEFITS

• Professional growth: Mentorship, TechTalks, and personalized growth roadmaps.
• Competitive compensation: USD-based pay with education, fitness, and team activity budgets.
• Exciting projects: Modern solutions with Fortune 500 and top product companies.
• Flextime: Flexible schedule with remote and office options.

Meet Our Recruitment Process

Application, Coding Challenge, Video Interview, Technical Interview or Hiring Manager Interview. Each step helps us understand your skills and overall fit. If it's a match, you'll receive an offer.