Case Study: e-Estonia modernizes the State Portal with Helmes’ micro-frontend architecture

How we updated the portal and service integration for citizens and businesses

The Estonian Information System Authority (RIA), the government body overseeing the national State Portal eesti.ee, faced challenges managing its expanding digital services. A monolithic architecture with significant code duplication across ten applications made maintenance difficult and hindered the integration of new services from various institutions. To simplify this process and future-proof the portal, RIA partnered with software development company Helmes to migrate the platform to a micro-frontend architecture.

Helmes created a single shell application to combine the separate citizen and entrepreneur portals, then broke down the monolith by migrating existing business functionalities into autonomous micro frontends (MFEs). This solution made maintenance significantly more manageable, as a single change to an MFE is reflected across the entire portal. The new architecture allows partner institutions to integrate their services with less development effort and even reuse MFEs in their own systems, ultimately providing citizens and entrepreneurs access to a broader range of e-services.

e-Estonia