eBay · Growth marketing
Incrementality and experimentation at marketplace scale
A/B testing, channel attribution and incrementality measurement for paid search and coupons.
Kasmi Data & AI · Zürich
Eight years at eBay across growth measurement, personalisation, search and LLM systems for 130 million users. I help teams get answers they can defend, as a consultant on focused projects or as a senior scientist joining the right team.
What I work on
Incrementality, A/B testing and attribution that tell you which spend actually causes sales.
Retrieval, evaluation and tracing, so AI features hold up for every user, not just the demo.
Models and optimisation for laser, photonics and other physical processes.
Selected work
eBay · Growth marketing
A/B testing, channel attribution and incrementality measurement for paid search and coupons.
eBay · LLM systems
LLM intent extraction feeding product search, with evaluation gating every release.
ETH Zürich · Research
PhD measuring photoemission time delays; co-author in J. Phys. Chem. Lett. (2016).