Senior Backend Developer Payments

Senior Backend Developer Payments

Work Location: Singapore

Role Overview:
Join our team to design and scale mission-critical payment systems that power millions of transactions across international card networks real-time QR payments and high-volume switching platforms. Your work will support both retail POS and e-commerce environments where every millisecond impacts revenue reliability and trust.

What Youll Do:
- Design and build high-performance backend systems supporting Visa Mastercard Amex and UPI payment integrations at scale.
- Architect secure scalable solutions across authorization clearing settlement and merchant onboarding workflows end-to-end.
- Lead modernization initiatives migrating legacy payment platforms to Linux RHEL or cloud-based architecture environments.
- Optimize switching systems for ultra-high transaction volumes ensuring low latency resilience and consistent system uptime.
- Collaborate with product QA and business teams to deliver reliable production-grade payment capabilities globally.

What You Bring:
- 8 years of backend development experience with deep exposure to payment systems switching platforms and transaction processing environments.
- Proven expertise in C Linux environments and scripting (e.g. Korn Shell) within high-availability production systems.
- Hands-on experience with Base24 international card scheme integrations and modern QR payment ecosystems.
- Solid understanding of databases (PostgreSQL/MySQL) messaging systems (IBM MQ) and distributed system performance tuning.
- Familiarity with POS/EDC ATM systems and payment infrastructure across both physical and digital transaction channels.

Why This Role Stands Out:
Your work will directly power real-world transactions from retail terminals to online payments impacting customer experience system reliability and business growth. Youll operate in a high-scale environment with modern infrastructure solving complex challenges in performance security and system evolution.

Contact:
If youre interested in building payment systems where scale speed and reliability truly matter lets connect. Reach out to Naveen at

Required Experience:

Senior IC