Comprehensive Payment Gateway Development

I am in need of a versatile payment gateway that caters to both online stores and POS payment devices. This gateway will need to support transactions via Credit/Debit cards and Digital wallets, with the capability to facilitate recurring payments.

Key Requirements:
- Design and implementation of a payment gateway for both online and POS systems
- Support for Credit/Debit cards and Digital wallets
- Functionality for recurring payments

Ideal Skills:
- Strong background in payment gateway development
- Knowledge of integrating with credit/debit cards and digital wallets
- Experience with POS system development

Please provide examples of your previous work in your bid. Thank you.