Senior Fullstack Engineer (Node.js, React)

TL;DR

Senior Fullstack Engineer (Node.js/React): Developing features across the entire stack for an EdTech platform with an accent on system architecture, CI/CD optimization, and product-driven development. Focus on building scalable APIs and user interfaces while integrating LLM tools into the development workflow.

Location: Hybrid (Madrid, Spain; Eindhoven, Netherlands; Berlin, Germany)

Company

One of Europe's fastest-growing EdTech companies on a mission to make learning fun and addictive.

What you will do

• Build and maintain full-stack features, including APIs, data layers, and user interfaces.
• Contribute to architecture and system design, managing trade-offs for scalability.
• Own the entire development lifecycle from idea to implementation, testing, and deployment.
• Optimize and maintain CI/CD pipelines and deployment workflows.
• Perform code reviews to ensure quality, clarity, and knowledge sharing.
• Communicate technical decisions to align cross-functional teams.

Requirements

• 5+ years of experience as a fullstack engineer.
• Strong proficiency with Node.js, TypeScript, and React.
• Proven experience collaborating with Product, Design, and UX teams.
• Hands-on experience with CI/CD pipelines and system design concepts.
• Experience using LLM tools (e.g., Claude Code, Copilot, Cursor) in daily workflows.
• Product mindset with a pragmatic approach to balancing quality and delivery.

Nice to have

• Experience with .NET.
• Experience with Vue.

Culture & Benefits

• Competitive salary based on impact.
• 25 days of paid holiday.
• Flexible working setup and necessary tools.
• Unlimited access to internal learning resources.
• Diverse international team and inclusive culture.
• Regular team events, outings, and creative sessions.