What product was developed — the core of digital banking and a payment transaction processing system?

The developed product is the core of digital banking and a payment transaction processing system that ensures secure and efficient financial operations.

Main functions include:

• Processing incoming and outgoing payments with high throughput.
• Managing user accounts, including balances and transaction history.
• Integration with external payment systems and banks.
• Ensuring security through authentication, encryption, and access control.

The use of Go is due to its high performance, support for parallelism, and reliability, which are critical for financial systems with low latency and high availability requirements.

The system implements microservice architectural principles, allowing for scaling individual components and simplifying maintenance.