Car Rental Website & App Development

I'm seeking a skilled professional who can help me edit my existing website, integrate some APIs, and develop a connected app for a car rental service. The app needs to be fully functional, working seamlessly with the API, and providing a consistent user experience across platforms.

Key requirements:
- Editing the current website to suit car rental services
- Integrating necessary APIs to enhance functionality
- Developing a connected app that can track kilometers and toll crossings
- Implementing a booking system within the website

The booking system should accommodate:
- Multiple vehicle types
- A customer support chat feature

The ideal candidate should possess:
- Strong web and app development skills
- Experience with API integration
- Knowledge of car rental systems
- Excellent communication skills for understanding and implementing the customer support chat feature.

A background in e-commerce development would be a plus.