Senior Backend Developer ( C++ and Payment)

Senior Backend Developer

Important Information

Location: Singapore

Key Responsibilities

Design, develop, and enhance backend services supporting payment processing and transaction switching platforms.

Develop and maintain integrations with international payment schemes including

Visa

Mastercard

American Express

UPI

• Support payment platform migration initiatives including implementation of Base24-eps on Linux RHEL / Cloud environments.
• Analyse technical requirements and contribute to solution design, architecture discussions, and technical documentation.
• Develop high-performance backend components for large-scale transaction processing environments.
• Perform system optimization, troubleshooting, and performance tuning for payment switching platforms.
• Work closely with QA teams, frontend teams, business stakeholders, banks, vendors, and payment partners.

Ensure solutions comply with payment security requirements including

• PCI-DSS standards
• Card scheme requirements
• Secure transaction processing practices
• Document system architecture, integration flows, and technical specifications.

Mandatory Skills & Elaboration

• Backend development experience with strong hands-on programming using C++ for enterprise-grade applications and transaction processing systems
• Strong experience developing backend applications running on Linux environments, preferably RHEL
• Experience in payment systems including payment gateways, transaction processing, card payments, or switching platforms
• Experience integrating with international payment schemes such as Visa, Mastercard, Amex, UPI or similar payment networks
• Hands-on experience with Linux shell scripting, preferably Korn Shell scripting
• Experience working with PostgreSQL or relational databases in backend applications
• Experience with AWS Cloud environments supporting backend/payment applications
• Experience with IBM MQ middleware for enterprise messaging/integration
• Experience with Base24-eps payment switching platform
• Experience with payment security standards including PCI-DSS and secure transaction processing practices

About Encora

Encora is a global company that offers Software and Digital Engineering solutions. Our practices include Cloud Services, Product Engineering & Application Modernization, Data & Analytics, Digital Experience & Design Services, DevSecOps, Cybersecurity, Quality Engineering, AI & LLM Engineering, among others.

At Encora, we hire professionals based solely on their skills and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality