Manage and grow an assigned B2B SaaS customer portfolio by driving renewals, upsells and cross-sells. Build strong client relationships, run QBRs and onboarding, collaborate with Product and Marketing, deliver data-driven presentations, monitor market trends, and champion customer feedback to maximize retention and product adoption.

Supports daily London office operations by welcoming visitors, managing access and meeting rooms, maintaining office organization, liaising with service providers, supporting onboarding, handling mail and documentation, tracking equipment, and coordinating workplace events. The role is part-time, office-based, and requires 25 hours per week from Monday to Friday.