Senior Fullstack Developer (eCommerce platform integrations)
Job Description
MultiSafepay is a leading payment service provider, offering omnichannel and advanced payment solutions to businesses across Europe. We are innovative and fast‑growing, building powerful solutions that transform the way our clients do business. We focus on delivering real solutions to their challenges and always stay ahead of the curve. In short, we are a true FinTech.
We're on a mission to make payments simple, secure, and accessible for every business. With powerful in‑house technology and deep expertise, our modular platform brings online, in‑person, and cross‑border payments together in one place — giving merchants the flexibility to scale on their own terms. Through a partnership‑first approach, we tackle complexity head‑on, keep payments running smoothly, and boost success rates. It's how we level the playing field for businesses of all sizes and ambitions.
About The Role
Our Development team builds and maintains the payment gateway modules that power e‑commerce integrations across platforms like Shopware, WooCommerce, PrestaShop, and Magento. We differentiate ourselves by developing all solutions in‑house, working alongside global partners such as Visa, Mastercard, Klarna, and Afterpay, and applying Domain‑Driven Design and microservices architecture to build scalable, maintainable systems.
We are looking for a Fullstack Developer to join this team. In this role, you will be responsible for developing, maintaining, and supporting payment gateway integrations across multiple open‑source e‑commerce platforms. Your work will be central to delivering the seamless, high‑quality payment experience our merchants and their customers depend on.
Job Requirements
What you’ll be doing
- Developing, maintaining, and supporting payment gateway integrations across e‑commerce platforms including Shopware, WooCommerce, PrestaShop, and Magento
- Collaborating with the development team to ensure consistency and quality of payment modules across different platforms
- Performing testing and debugging of integrations — including unit, functional, integration, and end‑to‑end testing — to ensure optimal performance and user experience
- Staying current with trends and best practices in e‑commerce, open‑source communities, and the payments industry
- Supporting the technical support team in diagnosing and resolving integration‑related issues
What You’ll Need
- A Bachelor's degree or equivalent working knowledge, with solid experience in web development and e‑commerce
- Proven experience building payment gateway integrations for platforms such as Shopware, WooCommerce, PrestaShop, or Magento
- Strong proficiency in PHP (including MVC frameworks such as Symfony, Laravel, or Zend), front‑end technologies (HTML, JavaScript, CSS), and JavaScript frameworks (jQuery, Angular, Vue, or React)
- A solid understanding of object‑oriented programming concepts and design patterns
- Hands‑on experience with RESTful APIs, Git, Docker, and package managers such as Composer and NPM
- Familiarity with the Atlassian stack (Jira, Confluence) and Linux/UNIX environments
- Strong communication skills with fluency in English
What You’ll Get From Us
- A competitive salary and benefits package
- Opportunities for professional growth
- A diverse role within a dedicated international team of enthusiastic colleagues
- Office with an amazing view of the beach
- Health insurance
- Free Spanish classes and optional afterwork sports activities
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