Senior Backend Engineer - Payments on Linux/Cloud

Encora; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Encora in Singapore seeks a Senior Backend Developer to design, build, and optimize backend services for payment processing and transaction switching. You will integrate with Visa, Mastercard, Amex, and UPI, and support Base24-eps migrations on Linux environments.

You will analyze requirements, contribute to architecture discussions, and ensure security standards while collaborating with banks, vendors, and QA teams to deliver robust solutions.

Qualifications

• Backend development experience with C++ for enterprise-grade apps and transaction processing.
• Experience in Linux environments, preferably RHEL.
• Experience in payment systems or switching platforms.
• Experience with international payment schemes (Visa, Mastercard, Amex, UPI).
• Shell scripting (Korn Shell preferred).
• Experience with PostgreSQL or relational DBs in backend apps.
• Experience with AWS Cloud for backend/payment apps.
• IBM MQ middleware for enterprise messaging/integration.
• Base24-eps payment switching platform experience.
• Payment security standards including PCI-DSS and secure processing.

Responsibilities

• Design, develop, and enhance backend services for payment processing and transaction switching.
• Develop integrations with international payment schemes (Visa, Mastercard, Amex, UPI).
• Support platform migrations including Base24-eps on Linux RHEL/Cloud.
• Analyze requirements and contribute to solution design and architecture discussions.
• Develop high-performance backend components for large-scale processing.
• Optimize, troubleshoot, and tune performance of payment switching platforms.
• Collaborate with QA, frontend teams, stakeholders, banks, vendors, and partners.
• Ensure PCI-DSS and card scheme compliance; document architectures and flows.

Skills

C++ Backend

Linux (RHEL)

PostgreSQL

AWS Cloud

IBM MQ

Base24-eps

PCI-DSS

Security best practices

Tools

Base24-eps

AWS

Job description

Encora in Singapore seeks a Senior Backend Developer to design, build, and optimize backend services for payment processing and transaction switching. You will integrate with Visa, Mastercard, Amex, and UPI, and support Base24-eps migrations on Linux environments.

You will analyze requirements, contribute to architecture discussions, and ensure security standards while collaborating with banks, vendors, and QA teams to deliver robust solutions.