Why Event Sourcing matters for fintech companies

Fintech have high regulatory requirements and require a secure, auditable yet fast solution. Using event sourcing gives strong consistency to your system, while you can maintain fast distribution of information and keep an audit trail of who did what.

  • Hard regulatory requirements
  • Requires strong consistency of writing
  • High security requirements
Know your system


Event sourcing provides a single source of truth. Serialized lets you easily rebuild your system state to any point in time to answer any questions regarding what happened.

Stay compliant

Meet regulations

Both auditing, privacy, security and GDPR are reasons the technology choice for fintech companies is hard. Serialized solves these regulatory requirements by providing deep deletion, encryption and multi-tenancy.


Strong consistency

Money matters. In the finance industry there is no doubt that you need a strongly consistent solution. Using Serialized allows for fast and consistent event storage while allowing downstream services to use eventual consistency via projections or event feed subscriptions to catch up.


Fintech companies that uses Event Sourcing

Designing your application around events and processes shortens the feedback loop to your business experts. You will always know what your users are doing and how it affects your system.


Lim Yi Sheng at StashAway wrote about their experiences from transitioning to Event Sourcing here.


Daria Kamaneva at solarisBank wrote about their Event Sourcing journey here.


Why Serialized?

We provide an affordable B2B/B2C pricing model that grows with your customer base. With a cloud-first, managed solution you can focus on your business requirements and domain modeling.

If you are considering using event sourcing and CQRS for your fintech application, we are happy to help you get started. We have helped a number of the most successful fintech companies, including iZettle and Klarna.