Platform 
Shared databases create shared problems. Each service owns its data so failures stay local.
Drop the tangled integrations. Services talk through REST so changes in one break nothing else.
Scattered logic slows everyone down. Each service owns one function so teams ship without waiting.
Keep internals off limits. APIs surface only what outside systems need, nothing more.
For banks, microservices means accelerating time-to-market for new products, reducing operational risk through service isolation, and enabling seamless scaling during peak demand.
Isolate failures so one microservice breakdown doesn't crash your entire system. Your core banking, payments, and lending operations keep running even when individual components fail.
Deploy updates to any service without touching the rest of the system. Update KYC, launch new payment features, or refresh lending rules, independently and instantly.
Scale individual services up during peak demand and down during quiet periods. You only pay for the capacity you actually use, nothing more.
Features
Microservices enable independent deployment of every service without affecting other services. This allows faster deployment and easy management. For example, if you want to update only the KYC microservices you do not have to worry about the dependencies on other services, like core banking services, customer management services, payment services etc.
Banks around the world are transforming their services to cater to the increasing customer demand. Additionally, banks must respond to the demand generating from various financial institutions for integrated solutions. Open banking is a process of making banking data accessible to external players through a secure channel. Microservices make it possible with APIs for every individual service.
Microservices make it easy to scale an app as demand grows. Instead of scaling an entire app, you can direct more resources to the most critical microservices. Scaling is also faster and often more cost-effective because of microservices. Microservices often have minimal codebases, making it easier to manage and deploy. It is also much easier to keep the code clean and assign teams to certain services.
