Subscription Service Payment Gateway Development

I'm in need of a robust payment gateway for my subscription service business. The gateway should accept Credit/Debit Card and PayPal, and incorporate fraud detection mechanisms to ensure secure transactions.

Key Features:
- Facilitate payments via Credit/Debit Card and PayPal
- Implement effective fraud detection to safeguard transactions

Ideal Skills:
- Proven experience in developing secure payment gateways
- Familiarity with subscription service payment requirements
- Proficiency in integrating various payment methods