Core Insurance Platform & Multi-Country Modernization

A major European insurance group was dealing with technology fragmentation across international subsidiaries. Regional entities were constrained by rigid COBOL-based core systems that made new product launches slow and expensive. At the same time, group headquarters was carrying a fragmented estate of legacy Java applications with accumulating technical debt.

The problem was both local and group-wide. Each country had specific product, regulatory, and operational requirements, but the group needed a platform architecture that could be reused across borders rather than rebuilt from scratch for every entity.

The work evolved across three phases over a seven-year period. The first phase established a new core insurance platform for one regional subsidiary, creating a modern baseline for digital capability and product delivery.

After that success, the platform was adapted and re-engineered for a second major entity under sole architectural ownership. The architecture had to become more flexible: product configuration, integration patterns, workflow behaviour, and local market variation all needed to be supported without fragmenting the stack again.

The modernization replaced a legacy COBOL core and migrated 10+ complex insurance products onto the new platform. The work then extended to group headquarters, where additional legacy Java applications were migrated into a modernized stack as part of a broader central portfolio modernization.

The platform evolved from a local modernization effort into a reusable multi-regional capability. It became a stable operational backbone for regional entities and supported faster product launches on a common platform foundation.

The success of the regional platform created the basis for further modernization at group level, including migration of 8+ additional legacy applications from the central portfolio. The important architecture lesson was that multi-country insurance modernization cannot be solved by a single rigid core; it needs a platform that standardizes the right foundations while deliberately preserving local product and regulatory flexibility.