Back End Developer

Back End Developer (Visa/Mastercard Payment Integration)

Important Information

Location: Singapore

This role focuses on core payment gateway backend development within a direct acquirer environment. The developer will design and maintain secure, high-availability systems that integrate with Visa, Mastercard, and other card schemes, ensuring compliance with PCI-DSS and scheme mandates. The role requires strong exposure to POS and e-commerce payment processing, Linux-based development, and high-performance transaction systems.

Mandatory Skills

Backend development experience in payment systems (POS & E-Commerce) – Hands-on experience building transaction processing systems covering authorization, settlement, reconciliation and onboarding flows

Visa / Mastercard / International Card Scheme integration – Experience working with scheme specifications, ISO messaging, compliance mandates and certification processes

Secure API & Payment Gatew...