Customer Service App Development

I'm looking for an experienced app developer to build a customer service focused business app. The app should be compatible with both iOS and Android.

Key Features:
- A comprehensive product catalog with a robust search function
- A seamless shopping cart and checkout process
- A user-friendly user account management system

Ideal candidates should have:
- Proven experience in e-commerce app development
- Strong understanding of customer service app requirements
- Ability to deliver cross-platform apps

Please provide examples of similar projects you have completed in your proposal.