Ciara O’Sullivan

Hypothesis & Analysis Specialist

I’m Ciara O’Sullivan. I work with teams to turn audit and research insights into clear test hypotheses—defining what to test, why, and what we expect to happen. I then dig into test results to explain why a variation won or lost. In my spare time, I write up case studies of successful tests for future reference. I believe well‑formed hypotheses lead to more impactful experiments. My focus is on connecting data to actionable test ideas.