I'm looking for a skilled developer to create a web-based Purchase Order (PO) system and requisition system. The system needs to support both iOS and Android platforms. Key features required: - Order Tracking: Monitor the status of orders in real-time. - Supplier Management: Manage supplier information and relationships. Ideal skills and experience: - Proven experience in developing web-based applications. - Expertise in mobile app development for both iOS and Android. - Strong background in building systems with order tracking and supplier management functionalities. - Familiarity with user-friendly UI/UX design principles. - Ability to integrate secure authentication and data protection measures. Please provide a portfolio showcasing similar projects.