Key Responsibilities:Develop and enhance Oracle Xstore POS features and modules. Customize workflows, UI components, and transaction logic within Xstore. Integrate Xstore with external systems such as payment gateways, CRM, and inventory platforms. Design, develop, and maintain APIs (REST/SOAP) using JSON and XML for system communication. Optimize database queries and operations using Oracle SQL. Troubleshoot and resolve POS-related issues on store devices and back-office environments. Apply bes