Senior Backend Dev ( C++ and Payment)
Summary
Builds and optimizes C++ backend services for payment processing, integrating with card networks (Visa, Mastercard, Amex, UPI) and migrating platforms to Base24-eps on Linux/AWS.
- 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:
- 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