Gold and diamond Jewellery ERP & E-commerce System Development

I'm looking for a skilled developer to create a comprehensive, easy-to-use ERP software tailored to the gold and diamond jewellery industry. This system will be integrated with e-commerce and feature several additional modules.

Key features required:
- Inventory Management: The system should efficiently track our jewellery stock levels.
- Sales Tracking: Real-time data on our sales performance.
- Customer Management: To maintain a customer database.
- Credit Management: Tracking outstanding credit and sending payment reminders.
- Finance Management: Tracking income and generating financial reports.
- CRM: To maintain good relationships with our customers.
- E-commerce Integration: Development of a functional e-commerce website and application.
- POS: A point of sale system for store transactions.
- WhatsApp Features: Integrating WhatsApp for customer communication.
- Reminder and Offers: Sending reminders and offers to customers.
- Mobile Application: Developing a mobile application for store management and billing.

The ideal candidate should have experience in:
- ERP system development.
- E-commerce software development.
- Creating mobile applications.
- Working with CRM, Credit, and Finance Management systems.
- Integrating WhatsApp features into applications.
- Developing POS software.

Please provide examples of previous similar projects you have worked on.