A fintech company dealing in digital wallets approached Mindbowser to get a well-tailored user interface and stable product that can serve without hiccups as the product grows to million users. 

We performed a high-level analysis on the company’s existing application platform and understood the performance requirements.

In this blog, we share how Mindbowser helped the customer build a highly scalable and secure platform architecture (Micro-service based Architecture). 

Conceptualization of the system architecture

We put together a plan for the different pieces of the backend and frontend along with scaling, security, monitoring and many other aspects of the system.

• The challenges were around handling all roundups and exchange related transactions to avoid any errors and make sure to develop a robust architecture around it
• We considered separate microservices for each exchange integration so that it is loosely coupled with the main application and works independently. Adding and removing new exchanges to be made simpler 
• Log Monitoring and performance monitoring of different parts done through open-source systems like Elastic Search, Logstash and Kibana and similar.
• We considered some caching mechanisms to speed up the performance of APIs and the frontend.
• Introduced API gateway to add extra security and API monitoring. This benefited the company to block or limit API request rates and comprehended third-parties that will be integrated in the future.
• For autoscaling, we applied to dockerize the microservices with either K8s or ECS.
• For security apart from the private VPC network, we used KMS for encryption at rest at the database and EBS level; also, IAM roles will be used to access databases and other resources to avoid any security breaches

” We believe in the Clean Architecture principle, “The only way to go fast is to go well.”