Build Seamless Checkout Experiences That Drive Conversion — Join Us in Madrid!
At FERO, we’re looking for a Senior Frontend Developer to lead the development of a next-generation checkout experience. You’ll design and build performant, user-friendly interfaces in React, collaborate closely with backend teams, and ensure smooth integrations with e-commerce platforms and APIs that power our product.
Who We Are
We're FERO, a high-growth startup reinventing the checkout and payment experience to help our customers increase conversion and revenue. Backed by top-tier VCs, we’re building our future from Madrid, combining cutting-edge tech with a collaborative, data-driven culture. We offer competitive pay, employee equity, and the chance to make a real difference in an environment that values curiosity, creativity, and impact.
What You'll Do
* Lead Frontend Development : Architect and implement modern, responsive checkout experiences using React, JavaScript, HTML, and CSS.
* Collaborate Across Teams : Work closely with backend engineers (PHP / Symfony, Magento, WooCommerce), designers, and product managers to deliver seamless, high-performing user experiences.
* Integrate Systems : Connect to backend APIs (REST, GraphQL), payment gateways, and shipping modules to ensure smooth and secure checkout flows.
* Maintain Quality : Write clean, testable, maintainable code, applying best practices for performance, accessibility, and security.
* Optimise for Conversion : Use data and UX best practices to improve checkout performance and conversion rates.
* Stay Ahead : Keep up-to-date with the latest trends in React, frontend tooling, and e-commerce technology.
What We Offer
* Innovative Environment: Work on cutting-edge solutions in a greenfield setting.
* Growth Opportunities: Join us early and grow with us professionally and personally.
* Collaborative Culture: Be part of a friendly, creative, and supportive team.
* Flexible Work: Hybrid model - 3 days in office, 2 days WFH.
* Competitive Compensation: Great pay, employee equity, and private health insurance partially sponsored by FERO.
Who You Are
* Experienced Frontend Developer: 5+ years of professional frontend development experience, with deep expertise in React and modern JavaScript.
* Backend-Aware: Comfortable working with NodeJS + PHP-based backends and understanding systems like Magento 2 and WooCommerce (not a PHP coder, but you can read and collaborate on backend-related tasks).
* API Fluent: Skilled at integrating with REST and GraphQL APIs.
* E-Commerce Enthusiast: Familiar with checkout flows, payment system integrations, and UX best practices for e-commerce.
* Performance & Accessibility Focused: You know how to build fast and accessible experiences.
* Collaborative & Proactive: You enjoy working in a team and aren’t afraid to ask questions or speak up with ideas.
* Growth Mindset: Always eager to learn and adapt to new technologies and challenges.
* Eligible to Work in Spain
* Fluent in both written and spoken English
Ready to Join Us?
Excited to make a difference? Send us your English CV and let's embark on this amazing journey together!
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