Cross-Platform POS System Development

I'm seeking a seasoned developer to craft a comprehensive, cross-platform POS system. This system should be able to support sales management, inventory tracking, and cash transactions. Additionally, it should incorporate a feature for managing employee payroll.

Key Requirements:
- Cross-platform compatibility (iPad & PC)
- Efficient sales management tools
- Robust inventory tracking features
- Smooth handling of cash transactions
- Comprehensive employee payroll management system

Ideal Skills:
- Proven experience in software/app development, particularly POS systems
- Knowledge of cross-platform development tools
- Strong understanding of sales and inventory management systems
- Experience with payroll software development
- Excellent communication skills for discussing optimal solutions

Let's collaborate to create an efficient, user-friendly POS system that suits my business needs.