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 Product Engineer 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 Product Engineer. 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 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

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📌 Product Engineer (Madrid)
🏢 FERO
📍 Madrid