Module development in Magento 2: You will be developing customized Magento 2 modules for individual customer requirements using best practices such as dependency injection, repositories, plugins and events/observers. Backend-Development & Business-Logic: You will be creating complex, modular functions, e.g., to extend checkout processes, product logic, or customer-specific pricing rules. API-Integration and Interface Development: You will be connecting external systems such as ERP, CRM, PIM, or payment providers to Magento – via REST, GraphQL  or custom-developed APIs. Extension of existing Magento-Functionalities: You will adapting standard functions through targeted extensions – e.g. in shipping, product presentation or admin interfaces. Error analysis & Bug fixing You will be using logs, Xdebug and profiler for analysis, identify vulnerabilities and solve problems in a structured and comprehensible manner. Technical Conception: You will be working closely with project management and frontend to technically design new features and realistically plan effort and architecture. System Connections: You will be implementing robust integrations with systems such as Akeneo, SAP, Microsoft Dynamics or middleware solutions – including authentication, data mapping and synchronization. Code-Quality and Performance: You will be ensuring clean, maintainable code, carry out refactoring and optimize loading times and database queries;