Case Study: HealthHero achieves faster PMS migration and €600k annual savings with Theodo

HealthHero migrates to microservices with Theodo, saving €600k/year and speeding delivery 5x

HealthHero, a European teleconsultation platform, faced the challenge of unifying its IT systems from multiple acquisitions. Their legacy backend, inherited from Qare, was difficult to maintain, non-compliant with European standards, and required modernization to reduce costs and accelerate growth. Theodo was engaged to manage this complex migration under a tight deadline without interrupting ongoing product development.

Theodo implemented a Lean Tech approach using three parallel teams to progressively extract critical microservices into a modern NestJS architecture, powered by AI agents to understand the legacy code. This solution allowed HealthHero to accelerate its delivery speed by five times, achieving an estimated €600k in annual savings from a terminated license and ensuring zero functional regressions through systematic test coverage.

HealthHero