Backend Engineer for Payment Processing System
Skills Required
Description
A backend engineer is needed to design and implement a robust payment processing system capable of handling high volumes of transactions securely and efficiently. The role involves building scalable services that integrate seamlessly with multiple payment gateways while ensuring reliability and compliance with industry standards.
The developer will use Node.js and Express to build a modular backend architecture. APIs must be clean, well-documented, and optimized for performance, allowing the system to process requests in real time without bottlenecks.
Data will be stored in MongoDB, requiring expertise in schema design, indexing, and query optimization. Since payment data is sensitive, strict attention to security and encryption protocols is mandatory.
Core responsibilities include:
Building and maintaining REST APIs for payment workflows
Integrating multiple third-party payment gateways
Ensuring compliance with PCI DSS and data protection standards
Designing secure authentication and authorization flows
Optimizing MongoDB queries for fast transaction handling
Scalability will be a major focus. The system must handle traffic spikes during peak transaction periods without service disruption. Load balancing, caching, and efficient database design will be key strategies.
Monitoring and logging mechanisms should be implemented to track transactions, identify anomalies, and detect fraudulent ...