Serrala seeks a Scaled Customer Success Manager in Barcelona to own the success of a 1,500+ customer portfolio across cloud and on-premise environments. You will lead migration to Cloud, drive adoption, and safeguard retention in a multi-year transformation, partnering with key internal teams. You must be a native German speaker with English proficiency, capable of designing playbooks, health scoring, and automation to improve data hygiene and standardized engagement across the portfolio.