Senior Backend Engineer - Real-Time Payments

Mastercard Worldwide in Singapore seeks a Senior Software Engineer within the Realtime Payments (RTP) program to design, build, test, and operate high‑quality backend services enabling instant payments across markets.

You will own features end‑to‑end, apply patterns such as microservices and REST APIs, ensure reliability, and contribute to production readiness, logging, metrics, and on‑call support.