Madrid (Hybrid) Full-time About FERO FERO is reinventing checkout for e Commerce. 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 Woo Commerce 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, Java Script, HTML, and CSS. Build and maintain backend functionality using modern PHP. Work on our Woo Commerce checkout plugin and Magento checkout module. Integrate frontend and backend through REST and Graph QL 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, Java Script, and Type Script. Experience working with e Commerce platforms. Experience with REST or Graph QL APIs. Familiarity with checkout or payment flows. Who you are You’ve ideally worked in smaller teams. You’re excited to learn new frameworks, tools, and technologies. You have stronger experience in either frontend or backend and are motivated to continue growing across the full stack. You like being close to the impact of your work. At our size, what you build reaches production and customers fast. You’re happy wearing more than one hat when needed. In a team our size, ownership doesn’t stop at a narrow job description. You’re comfortable when priorities shift as we learn. We’d rather ship, iterate, and improve than wait for perfection. What we offer Permanent contract. Private health insurance (partially covered). Hybrid work (3 days office / 2 remote). Office in a central location in Madrid. Real growth opportunities. High-impact, collaborative environment. Hiring Process Screening call Technical interview with the Hiring Manager Final conversation #J-18808-Ljbffr
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