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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Fullstack Developer (eCommerce platform integrations - **Company:** Multisafepay - **Location:** Spain - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), PHP (Programming Language), Confluence, JIRA, Cascading Style Sheets (CSS), Software Debugging, Software Design Patterns, Web Development, JQuery, Laravel, Model View Controller (MVC), Object-Oriented Software Development, Open Source Technology, Package Management Systems, Payment Gateway, PrestaShop, Symfony, Systems Integration, WooCommerce, Zend Framework, ReactJS, Magento, Git, Vue.js, AngularJS, Atlassian Tools, Npm(Software), Front End Software Development, Restful APIs, Shopware, Domain Driven Design, Docker, Microservices - **Published:** July 13, 2026 - **Apply:** https://www.jobleads.com/es/job/e4f3259c45bc026429c76962c80f6b2d2 ## About the Role * 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 ## Description 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., * 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 ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [APIs and Architecture for scaling omnichannel payments](https://www.wearedevelopers.com/videos/90-apis-and-architecture-for-scaling-omnichannel-payments) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Modern Headless Commerce with Vendure](https://www.wearedevelopers.com/videos/489-modern-headless-commerce-with-vendure) ## Related Articles - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)