Ask them to walk you through how they would explain a cross-border payment product to a CFO who has never used one. The answer reveals whether they've done this kind of work before or whether they're going to figure it out on your budget. A good answer describes the specific buyer fear, the specific outcome that addresses it, and the visual and messaging approach that makes the mechanism legible without a technical white paper. A vague answer — about UX or conversion optimisation — signals no fintech domain experience.
