Seb Hapte-Selassie is Co-Founder and CTO of telli, a Berlin-based AI voice agent platform backed by Y Combinator and Cherry Ventures, building the future of automated customer acquisition for B2C companies.

A Stanford University Computer Science graduate, Seb built his technical foundation through software engineering and product roles at BCG Digital Ventures, Pitch, Circ, and N26, accumulating seven years of cross-functional experience.

Seb left his Stanford Master's program midway to pursue entrepreneurship full-time, embodying a bias for shipping and a founder-first mindset focused on turning early-stage ideas into scalable systems.

Prior to telli, Seb honed deep expertise in fintech operations at N26, IoT and vehicle tech at Circ, and product engineering at Pitch, giving him a rare combination of technical rigor and product intuition.

telli's AI voice agents now handle thousands of calls per day across energy, real estate, healthcare, and home services, with revenue growing over 50% month-on-month and the company featured on Forbes 30 Under 30 Europe 2025.