Descripción de la oferta
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.
Work on a product that directly impacts revenue
Real ownership from early on
Modern stack + real-world scale challenges
Direct collaboration with product and engineering
Competitive salary + equity
Ambitious and international team
About the role
We’re looking for a Full Stack Developer to help us build and scale our next-generation checkout.
You’ll work across the stack — building React-based interfaces and contributing to PHP backend systems powering real eCommerce transactions.
This is a product-focused role where performance and UX really matter.
What you’ll do
Build end-to-end features across frontend and backend
Integrate with backend systems (PHP) and APIs (REST, GraphQL)
Work with payment systems, checkout flows, and eCommerce integrations
Collaborate with engineers, product, and design
Write clean, maintainable, and scalable code
Optimize performance, accessibility, and UX
Use data and best practices to improve conversion
Qualifications
2+ years of experience as a Full Stack Developer
Solid PHP knowledge (APIs, backend logic, integrations)
Experience working with REST and/or GraphQL APIs
Basic understanding of eCommerce systems or checkout flows
Nice to have
Experience with WooCommerce or Magento
Exposure to payments or checkout systems
Understanding of performance optimization
Interest in UX and conversion
Who you are
Product-minded — you care about what you build
Eager to learn and grow quickly
Detail-oriented and quality-focused
Collaborative and proactive
Comfortable in a fast-paced environment
What makes this role different
You’re not just building features — you’re working on the most critical part of eCommerce: checkout.
What you ship has a direct impact on revenue.
What we offer
Competitive salary + equity
Private health insurance (partially covered)
Hybrid work (3 days office / 2 remote)
Collaborative, high-performance team
Ready to grow fast and build real products?
If you want to work on meaningful problems, improve fast, and see your impact — we’d love to meet you.
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