Senior Backend Dev ( C++ and Payment)

• 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

Key Responsibilities

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

• Develop and maintain integrations with international payment schemes including:

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• 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:

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• PCI-DSS standards

• Card scheme requirements

• Secure transaction processing practices

• Document system architecture, integration flows, and technical specifications