How does the tariff calculator benefit users?

The tariff calculator automatically determines if users meet specific goals, such as transactions, savings, or salary accruals, granting corresponding free services and improving the customer experience.

How were microservices integrated with existing systems?

Microservices were designed to communicate seamlessly with the bank's existing infrastructure, ensuring smooth data exchange and real-time updates across mobile and web platforms.

How was remote work managed given VPN challenges?

Developers used proactive planning and systematic VPN switching to maintain secure access to multiple systems, ensuring project continuity and timely feature delivery.

What measures ensured backend reliability?

All microservices were covered with unit and integration tests, with code reviews and adherence to best practices ensuring system stability and reliable calculations for user benefits.

Backend Solution for the Internet-Banking System

Azati helped a leading financial company enhance its online banking platform by implementing features to calculate client benefits and provide free services, based on the customer's goals. The solution included backend development for both mobile and web banking applications, focused on improving customer experience through an advanced 'tariff calculator' system.

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70%

faster benefit calculations

65%

automated service assignment

35%

increase in customer satisfaction

All Technologies Used

Java

Spring Boot

Spring Cloud

Apache Mesos

IBM MQ

Swagger

JUnit

Wiremock

Motivation

The goal of this project was to develop a backend solution for the bank’s mobile and web banking applications, specifically the ‘tariff calculator’ system. This system calculates clients’ benefits and grants free services when users meet specific goals, such as making transactions, saving a particular amount, or receiving salary payments.

Main Challenges

Due to the bank’s infrastructure, developers had to switch between two VPNs, one for internal development and another for the bank’s mailing system. This made communication with on-site teams complex and increased development time. Azati implemented a structured remote workflow and careful sprint planning to mitigate delays and maintain productivity.

Integrating new microservices into the existing banking system, while maintaining synchronous communication between multiple legacy and external systems, was challenging. Azati proposed a modular architecture with dedicated tariff calculator, queue, configuration, and tariffs catalog microservices, ensuring seamless integration and consistent performance.

Our Approach

Collaborative Team Integration

Azati’s team of 4 developers, a business analyst, a product owner, and a quality assurance engineer worked closely with the customer’s team to ensure smooth remote work and effective collaboration.

Scrum Methodology

Two-week sprints included planning, development, testing, demonstrations, and retrospectives to iterate quickly and maintain alignment with client goals.

Microservices Architecture

Separate microservices were developed for tariff catalog management, tariff calculation, queue processing, and configuration management to improve maintainability, scalability, and reliability.

Proactive Planning and Testing

Detailed sprint planning and test-driven development minimized risks from VPN switching, ensured accurate calculations, and maintained system stability.

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Solution

Microservices Architecture

The backend system is divided into distinct microservices, each responsible for a specific domain like tariffs catalog, tariff calculation, queue management, or configuration. This separation allows independent scaling, easier maintenance, and flexibility for future updates or feature expansion.

Key capabilities:

Full catalog of packages
User selection tracking
Integration with tariff calculator

Tariff Calculator

A core component that aggregates incoming user data, calculates progress toward defined goals, and determines eligibility for free services. It automates the process of benefit allocation, ensuring accurate and timely provision of services according to the bank’s tariff plans.

Key capabilities:

Automated benefit calculation
Real-time goal evaluation
Accurate application of service packages

Queue Microservice

Handles synchronous communication between different microservices and external systems, ensuring that events, requests, and updates are reliably processed in real time. This microservice acts as the backbone for smooth interaction across the banking platform.

Key capabilities:

Event-driven processing
Synchronous inter-service communication
Reliable message delivery

Configuration Microservice

Stores all configuration settings for the platform’s microservices. Provides a centralized and secure way to manage backend configurations, enabling quick updates, consistent settings across environments, and simplified maintenance.

Key capabilities:

Centralized configuration management
Dynamic updates without downtime
Consistency across microservices

Business Value

Automated Client Benefits: Free service packages are applied automatically based on goal fulfillment, reducing manual errors and ensuring consistent application.

Improved Customer Experience: Users can clearly see available packages, track their progress, and receive services promptly, enhancing engagement and satisfaction.

Reliable Integration: Microservices communicate seamlessly with existing banking infrastructure and external systems.

Operational Efficiency: Reduced backend complexity and improved maintainability for future updates.

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Backend Solution for the Internet-Banking System

All Technologies Used

Motivation

Main Challenges

Our Approach

Want a similar solution?

Solution

Microservices Architecture

Tariff Calculator

Queue Microservice

Configuration Microservice

Business Value

Ready To Get Started

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