Mafin, an insurance aggregator, sought Evrone's expertise to revamp its infrastructure and develop a B2B platform for the finance and insurance sector. Initially planning a simple migration, unforeseen dependencies complicated the process. However, through collaborative effort, they successfully transferred nine services to Yandex Cloud, reducing costs significantly. Evrone's DevOps team not only resolved legacy issues but also optimized the infrastructure, resulting in a threefold decrease in monthly maintenance costs. The project prompted a restructured approach to future endeavors, emphasizing thorough audits and accurate estimations.