Product design
Clickable prototypes, user research and interface design that turn an idea into something users understand at first sight.

Design decides whether people use what you build
A product that works but confuses its users does not get used. We work out who the product is for, test the idea with them before it is built, and design an interface that is clear, accessible and ready for engineers to implement.
Research and discovery
We find out who feels the problem, what they use today and what would make them switch, before anything is drawn.
- User interviews
- Competitor review
- Problem definition
- User journey maps
Prototype and UX
We turn the idea into a clickable prototype and test it with real people, so mistakes are found when they are cheap to fix.
- Clickable prototypes
- Structure and navigation
- Testing with real users
- Iteration from feedback
Interface design, ready to build
We design the final screens and the components behind them, so engineering can build exactly what was tested.
- A consistent visual system
- Responsive layouts
- Accessible by default
- Clean handoff to engineering
From idea to a design ready to build

Understand the users
We learn who the product is for and what they need, and agree what the design has to achieve.
Prototype and test
We build a clickable prototype and test it with real users, then improve it from what we learn.
Hand off to build
We deliver finished designs and components, and stay available while engineering builds them.

Have a product idea that needs shape? Let us design it.
Contact UsWhy work with MOULI
- 1
Engineering culture
We hold ourselves to high standards and do not stop at good enough.
- 2
Product mindset
We measure success by value delivered to your users, not by tasks completed.
- 3
Partnership
We work openly with you, in plain language, with regular updates.

