Ticket Purchase Website & Mobile App Development

I'm looking for a professional who can develop a website and a mobile app for purchasing attraction tickets. The app needs to be available on both iOS and Android platforms.

Key Features:
- Smooth and quick ticket purchasing experience
- Integration with third-party vendor via API for ticket purchasing
- Secured payment gateway
- Instant ticket delivery

Ideal Skills:
- Expertise in website and mobile app development
- Proficient in API integration
- Experience in developing e-commerce platforms
- Knowledge of implementing secured payment systems
- Familiarity with instant ticket delivery systems

Freelancers with prior experience in this domain will be given preference. Please provide examples of similar projects you've worked on.