Research-led UX design for product teams
UX design & prototyping services
Turn research insights and product requirements into user flows, wireframes and interactive Figma prototypes your team can test before development. When your product needs high-fidelity UI, I bring in trusted UI designers from my network.

Scope
Flows to prototypes, UI with partners
Tools
Figma, FigJam, Miro
Approach
Research-led, tested with users
When do you need UX design and prototyping?
A good fit if
Requirements need to become flows, wireframes and a prototype your team can test.
You want to explore ideas before development starts.
An A/B test needs a well-reasoned variant, not a guess.
You need research-led UX and high-fidelity UI with one point of contact.
Not the right fit if
You only need a visual refresh and have no open UX questions.
You need a large design team for ongoing production work.
You need the product built. Development stays with your team.
There is nothing to base concepts on yet. Start with user research.
Not sure what the concept should solve? Discovery research shows what people actually need.
What I create
UX design services from insight to testable prototype
Grounded in research and behavioral psychology, built in Figma. AI tools speed up iterations on mid-fidelity prototypes. High-fidelity UI comes from trusted design partners.
UX and UI design
From UX concepts to complete UI design
I lead research, UX structure and prototyping myself. When your product needs high-fidelity UI, I bring in independent UI designers from my network and coordinate the work where agreed. You can start with a focused concept and extend the scope later.
UX research & concepts
Led by me: flows, wireframes and prototypes based on evidence.
UI & visual design
With trusted design partners: high-fidelity screens, components and responsive layouts.
Testing & handoff
As agreed in the scope: usability tests, iterations and files for your developers.
How it works
STEP 1
Start from evidence
We collect what is known: research findings, data, requirements and constraints.
STEP 2
Map flows and structure
I define the information architecture and key user flows before designing screens.
STEP 3
Wireframe and prototype
I create wireframes and interactive prototypes in Figma, iterating fast with your team.
STEP 4
Test with users
We test the concept or prototype with real users or define it as a variant for an A/B test.
STEP 5
Extend into UI and hand over
For high-fidelity UI, trusted design partners join. Your team gets editable Figma files and the reasoning behind each decision.
What you’ll receive
Concepts your team can discuss, test and build on, each one linked to the insight or hypothesis behind it.

Information architecture
A clear structure for navigation and content.

Key user flows
The main paths through your product, step by step.

Wireframes and prototypes
Editable Figma files, clickable and ready for testing.

Tested concepts
Tested with real users when testing is part of the scope.

High-fidelity UI
Screens, components and handoff files from trusted design partners, when you need them.
Ready to make your ideas testable?
What it can and cannot do
A prototype makes ideas testable. It doesn’t prove they work.
Concepts are hypotheses until people use them. That’s why I design them to be tested, with users or in an A/B test.
A shared picture
Everyone sees the same solution before it is built.
Faster decisions
Ideas can be compared, discussed and tested early.
Testable variants
Clear alternatives for usability tests and A/B tests.
Ways to work together
From a single concept to complete UX and UI design, scoped to your question and timeline.
Prices are net; VAT is added based on your country and tax status.
FAQ
Frequently asked questions
Let’s discuss your UX design project
Tell me what you’re working on. In a free 30-minute call we clarify what the design should solve, the right fidelity and whether you need UI design support.

Diana Szczepanik
UX Researcher & CRO Consultant, Psychologist (M.Sc.)





