Backend Development for Multi-Store Management System

I'm looking for an experienced backend developer to create a robust system for managing several online stores owned by one business. This system will need to efficiently handle shared inventory and stock levels, as well as products, prices, and promotions across all stores.

Key requirements include:
- Building a secure and scalable backend infrastructure.
- Developing APIs to support frontend operations.
- Implementing a centralized database for inventory and product management.
- Ensuring data integrity and synchronization across all stores.
- Collaborating with frontend developers to integrate the backend with user interfaces.

Ideal skills and experience:
- Strong knowledge of backend technologies (Node.js, Python, Ruby, etc.).
- Experience with database management (SQL, NoSQL).
- Familiarity with API development and integration.
- Proven track record in building multi-store or multi-tenant systems.
- Excellent problem-solving skills and attention to detail.
- Prior experience in e-commerce platforms is a plus.

If you have a portfolio showcasing relevant projects and can work within my budget, I would love to hear from you.