Head of Customer Success: AI-Driven Enterprise Growth

Colossyan is seeking a Head of Customer Success to own retention, expansion, and the customer experience for global enterprises. This player-coach role entails hands-on work with strategic accounts (about 70%) and building the CS team (about 30%), including renewals, expansions, and governance of the CS platform.

You will lead health scoring, forecasting, and executive-level reporting, while ensuring alignment with Product and Marketing. Based in London, you'll be in the office three days weekly.