Airwallex has acquired billing platform OpenPay to enhance its services and compete directly with Stripe Billing. OpenPay offers features such as subscription management and payment orchestration, which Airwallex aims to leverage to create a global billing platform designed for modern multi-currency needs.

Jack Zhang, co-founder of Airwallex, chose to pursue his own venture over joining Stripe, leading to the establishment of a company valued at $775 million. His decision reflects a commitment to innovation and entrepreneurship in the fintech sector. Zhang's journey exemplifies the potential for success outside of established tech giants.