
Kostyantyn Rozenshtraus-Makarov took SendPulse to New York and learned how expensive a reluctant customer can be. His path from Chernihiv programmer to software co-founder runs through Brazil, shared offices and a habit of reconsidering the plan.

The Chernihiv-based CMO helped turn a useful email finder into a global sales platform. Her operating philosophy is simple: do the homework, make the encounter memorable, and give people a reason to answer.