Product Engineer

Fero; Coslada; Híbrido; EUR 42.000 - 64.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Permanent contract

Private health insurance (partially)

Hybrid work (3 days office / 2 remote)

Office in central Madrid

Descripción de la vacante

Fero is hiring a Product Engineer to join our Engineering team in Madrid. You will help build and improve our next-generation checkout experience, working across our WooCommerce checkout plugin and Magento checkout module.

You will develop React interfaces, contribute to PHP backend services, and deliver high-converting checkout flows. We value curiosity, adaptability, and a willingness to grow across the stack.

Formación

• Experience building web applications across the stack.
• Strong problem-solving skills and collaborative mindset.
• Exposure to modern PHP and frontend/backend integration.

Responsabilidades

• Build end-to-end features across frontend and backend.
• Build and maintain backend functionality using modern PHP.
• Work on the WooCommerce checkout plugin and Magento checkout module.
• Integrate frontend and backend through REST and GraphQL APIs.
• Collaborate with engineers, product managers, and designers.
• Write clean, maintainable, and testable code.
• Continuously learn new tools and technologies.

Conocimientos

Team collaboration

Problem solving

Adaptability

Communication

Herramientas

PHP

React

REST API

GraphQL

WooCommerce plugins

Magento modules

Descripción del empleo

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 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.
• 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

• Experience with modern PHP.
• Relevant professional experience building web applications.
• 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 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.

Hiring Process

• Screening call
• Technical interview with the Hiring Manager
• Final conversation