Madrid (Hybrid)
Full-time
About FERO
FERO is reinventing checkout for eCommerce.
We build high-performance, adaptive checkout experiences that help merchants increase conversion and revenue.
Backed by top-tier VCs, we’re building from Madrid with a strong focus on performance, data, and real impact.
About the role
We’re looking for a Full Stack Developer to join our Engineering team.
You’ll help build and improve our next-generation checkout experience, working across our WooCommerce checkout plugin and Magento checkout module. You’ll develop modern React interfaces, contribute to PHP backend services, and help deliver seamless, high-converting checkout flows.
We’re looking for someone with relevant professional experience who’s excited to grow as a Full Stack Developer. Whether your background is stronger in frontend or backend, you’re curious, adaptable, and eager to keep learning across the stack.
What you’ll do
Build end-to-end features across frontend and backend.
Develop modern, responsive user interfaces using React, JavaScript, HTML, and CSS.




Build and maintain backend functionality using modern PHP.
Work on our WooCommerce checkout plugin and Magento checkout module.
Integrate frontend and backend through REST and GraphQL APIs.
Collaborate closely with engineers, product managers, and designers.
Write clean, maintainable, and testable code.
Continuously learn new tools, technologies, and best practices.
What you'll bring
Relevant professional experience building web applications.
Experience designing scalable systems.
Experience working across the stack, with a stronger background in either frontend or backend.
Strong problem-solving skills.
Ability to work collaboratively within an engineering team.
Good to Have
Experience with modern PHP.
Experience with React, JavaScript, and TypeScript .
Experience working with eCommerce platforms.
Experience with REST or GraphQL APIs.
Familiarity with checkout or

📌 Full Stack Engineer (Madrid)
🏢 FERO
📍 Madrid