Prototype & demo experience development for web application

We are looking for a rare hybrid talent who can take a web application from rough concepts and wireframes all the way to a polished, semi-functional demo experience. You will not just be designing screens. We need someone who understands user flows, interaction design, and product thinking, but can also bring those designs to life using modern prototyping, no-code, or frontend tools. The goal is to create a realistic, interactive product demo suitable for customer presentations, stakeholder reviews, and early product validation. If you are a designer who builds, a developer with strong design instincts, or someone who operates comfortably between the two, this is the perfect role for you.