09.10.2026 aktualisiert
100 % verfügbar
PHP & Symfony Developer | ERP, CRM, E-commerce & Payment Integrations
Bad Münstereifel, Deutschland
Nur Remote
Über mich
Full Stack Engineer with 6+ years of experience in PHP, Symfony, Laravel, ERP, e-commerce, REST APIs, and payment integrations. Skilled in modernizing legacy systems, troubleshooting production issues, and building scalable, reliable business applications.
Skills
PHPCakePHPE-CommerceLaravelSymfonyPHPUnitBackendFront End
Full Stack Developer with 6+ years of professional experience building scalable business web applications, ERP and CRM platforms, e-commerce solutions, and REST APIs.
Backend Development: PHP 7/8, Symfony, Laravel, CakePHP, Slim, Python/Django, Node.js, MVC architecture, OOP, SOLID principles, and clean code.
Frontend Development: JavaScript, React.js, Vue.js, HTML5, CSS3, and responsive web design.
Database Management: PostgreSQL, MySQL, MongoDB, database design, SQL queries, and query optimization.
API Development & Integrations: REST APIs, GraphQL, third-party API integrations, JSON, XML, and asynchronous communication.
Payment Integrations: Professional experience integrating international payment providers, including PayPal, Worldpay, Lyra, dLocal, Crédit Agricole, Linxo, and Sogenactif. Experienced in payment authorization, capture, refunds, transaction status handling, webhooks, error handling, and production troubleshooting.
Business Applications: ERP, CRM, reservation management, invoicing, order management, e-commerce features, and custom business workflows.
Legacy Modernization: Refactoring legacy PHP applications, migrating CakePHP projects, modernizing application architecture, and improving code maintainability.
DevOps & Testing: Docker, Git, CI/CD, PHPUnit, Postman, API testing, Apache, and automated workflows.
I focus on writing reliable, maintainable code and delivering practical solutions that meet business requirements. I can help you build a new web application, develop new features, integrate external services, fix bugs, or improve an existing system.
Available for remote freelance projects with businesses and development teams internationally.
Erfahrung
Berufserfahrung5 - 10 Jahre
Freelancer seit2026
Sprachen
DeutschgutEnglischverhandlungssicherFranzösischverhandlungssicher
Projekthistorie
- Integrated international Payment Service Providers including Lyra, Worldpay, PayPal, dLocal, Crédit Agricole,
Linxo, and Sogenactif through secure REST APIs.
- Designed and maintained payment workflows covering authorization, capture, refunds, declined transactions,
error handling, and asynchronous notifications.
- Developed ERP, CRM, e-commerce, and reservation features for a large-scale cruise booking platform.
- Developed a Symfony 6 cartographic web service for ship deck visualization and cruise booking
management.
- Implemented logging, monitoring, and exception handling and resolved complex production incidents
affecting payment processing.
- Defined WBS, coordinated technical tasks with internal teams and external providers, and contributed to
code reviews in an Agile/Scrum environment.
- Developed backend and frontend features for Klipso's proprietary CMS platform, used to create and manage
events, including ERP, mailing, PDF generation, CSV import/export, and e-commerce modules.
- Migrated and redesigned the backend architecture from CakePHP 1.4 to CakePHP 4.2.
- Refactored legacy PHP applications to Symfony 5.4, improving maintainability and code structure.
- Built a Django-based automation platform using cron jobs to detect iOS, Android, and browser releases and
automatically generate Jira Epics and Xray test workflows.
- Developed Node.js backend services for real-time social media data integration for mobile applications.
- Developed new features and customized web, iOS, and Android applications using React.js.
- Contributed to CI/CD automation for mobile applications using Bitrise.
- Managed backend environments with Apache, Docker, and Certbot and resolved critical production issues.