AI Fullstack Builder (Ecommerce)

TL;DR

AI Fullstack Builder (React/Node.js): Developing and optimizing B2C pre-purchase and post-purchase customer journeys for a global marketplace with an accent on frontend delivery and AI-assisted engineering. Focus on building high-conversion checkout and voucher flows, integrating GraphQL APIs, and leveraging AI tools to accelerate delivery.

Location: Must be based in Madrid or Prague with regular office attendance required

Company

A global e-commerce marketplace connecting customers with local businesses and experiences.

What you will do

• Build and improve B2C customer-facing experiences, including homepage, browse, deal, and post-purchase pages.
• Own features end-to-end from problem definition to production deployment and debugging.
• Leverage AI tools such as Claude, Cursor, and Copilot to accelerate coding and problem-solving.
• Collaborate with product and design teams to optimize pre- and post-purchase flows.
• Ensure code quality and maintainability while implementing end-to-end testing.

Requirements

• Proficiency in TypeScript, React, Next.js, Node.js, and GraphQL.
• Strong frontend engineering skills within a modern JavaScript ecosystem.
• AI-first mindset with a proven track record of using AI assistants to improve efficiency.
• Ability to work from Madrid or Prague hubs with regular office attendance.
• Strong independent problem-solving and debugging skills.

Nice to have

• Experience with B2C product development and improving conversion rates.
• Exposure to full-stack development beyond the frontend.
• Experience with end-to-end testing frameworks.

Culture & Benefits

• AI-first environment with provided access to Claude Max and other approved AI assistants.
• Hybrid work model and flexible working hours.
• High degree of autonomy and immediate impact at a global scale.
• Attractive bonus and comprehensive benefits package.
• Culture of experimentation, data-informed decisions, and continuous learning.