Head of Customer Success

As Head of Customer Success, you will lead Abacum’s Customer Success team in New York (currently 9 people across Customer Success Managers and Technical CSMs) and own end-to-end customer outcomes: retention, renewals, expansion, and product adoption. You will scale the team and the operating model, ensuring every customer reaches measurable success based on the outcomes defined during the sales and onboarding process. You’ll partner closely with Sales, FP&A Ops (Implementation), Product, Engineering, and Marketing to drive predictable renewals and expansion, and to represent the voice of the customer internally. This is a leadership role with a strong execution focus: you will be hands-on with strategic accounts, build the playbooks and tooling to scale, and develop a high-performing team that consistently delivers value to customers.