Senior UX/UI & Product Designer · AI-native

I design and build digital products

A pragmatic designer who thinks in systems and turns complex problems into clear, usable products, while working closely with the whole team. Now expanding her scope to build what she designs, not just hand it off.

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10+ yearsSenior UX/UI & product design across mobile & web
Digital healthRegulated, high-stakes products at national scale
Full surfaceSole designer — at a startup, then an acquisition
2 shippedLive AI apps — designed and delivered solo this year

01 — Built, not just designed

From idea to live

Real products designed and built solo with AI — the proof, not the promise. Two are live apps I shipped this year; the third is a tool I built to speed up future builds.

Try it live ↗ Healthy Habits Hub — dashboard, food log and activity log on mobile
2026

Healthy Habits Hub

AI-native calorie & activity log

Claude CodeLovableGemini

Effortless food & activity log that kills the usual friction, gently supported by AI. Quickly snap or describe a meal and the AI reads it, then an approved nutrition database sets the trusted numbers. An AI-native mobile web app.

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Try it live ↗ Shovl dashboard — the job-application pipeline at a glance
2026

Shovl

Full-stack job-application tracker

LovableClaude Code

Every job application in one place, so tracking where each one stands stays easy. The details you'd otherwise retype into forms sit a click away — copy, paste, done. Deliberately lightweight and clear. A full-stack web app: auth, database, uploads and email.

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Internal
$ cd new-project
$ claude
> bootstrap from starter-pack
✓ profile  ✓ templates
✓ workflows  ✓ skills
→ ready to build.
2026

Starter Pack

Personal build meta-tool

Claude Code

A clean, efficient starting point for every new build — scaffold plus the working conventions I've settled on, preloaded so I'm not rebuilding them each time. A reusable Claude Code project template.

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02 — Reasoning made visible

Selected work

Four projects, chosen for the reasoning behind them — the structure underneath, the information architecture, and the calls that made them navigable.

White-labelSSO / integrationB2B systemsMotion

Two brands, one journey

Telemedi's white-label deal let Allianz offer its own remote and in-person medical care service, while it ran entirely on Telemedi's platform underneath. I owned the integration design end to end, from the pre-sales pitch through to the customers using it.

My role
Sole designer — pre-sales assets, the Allianz-branded re-skin, the cross-system SSO bridge, and the customer explainer videos.
Decisions
Designed both ends of the handoff so the brand could "gradient" across the crossing, and reused the core Telemedi product rather than fork a second copy — one base to maintain, dressed for each partner.
Outcome
Allianz's remote care now runs live on the white-label I designed. Assets prepared in advance helped win the deal, not just deliver it afterward.
Allianz-branded telemedicine home screen (powered by Telemedi) — a left menu (book, consultations, documentation) and three service cards: online consultation, in-office visit, and medical documentation Allianz-branded appointment-booking tile in four variants — two wide desktop cards (collapsed and expanded time-slot grids) and two compact tiles — each with clinic, service-type and doctor selectors and a day's available slots
Read the full case →
Enrollment flowUX/UIPrototypingRegulated

The patient enrollment flow

A legally binding sign-up for a Polish national health-system (NFZ) online clinic service. Made to be compliant to the letter, and genuinely understood by the patient.

My role
Sole designer — the national health-system enrollment & patient flow, the layouts, and the prototyping.
Decisions
Designed a welcoming info landing page before the formal process, kept the bureaucracy in the background where the law allowed, and tracked retention on each mandatory step.
Outcome
It became one of the country's top-3 online clinics in the national health system — and the enrollment flow I designed was the door every public patient came through.
Telemedi NFZ info landing page — 'Zapisz się do naszej przychodni', with the site's real nav bar and friendly illustrations introducing the four-step online sign-up for free public primary care Telemedi NFZ enrollment confirmation — 'Dziękujemy za zmianę przychodni POZ', the thank-you screen shown after a patient completes the sign-up
Read the full case →
IANavigation mappingStakeholder alignmentForesight

A purposeful architecture

A site serving four audiences that share the domain but not the reason to be there. I restructured it around one idea: a minimal main page that routes, and rich per-audience landing pages where the directed traffic actually lands.

My role
UX/UI designer (contract) — the site review, the IA/content restructure, the navigation mapping, and a visual refresh.
Decisions
Grounded the four branches in conversations with the people who actually knew each department and worked with its customers, and validated the structure with the stakeholders (wireframes and prototypes) before production.
Outcome
Four different audiences, each served by its own branch with dedicated CTAs. The project designs delivered on time, in full scope.
The CBT Centrum main page — a lean router hub: a short hero statement above six cards routing to clinics, professional training, business offers, teacher programmes, the bookshop and the foundation A CBT Centrum branch landing page — 'Find your nearest clinic', with city and service filters above a list of clinic locations
Read the full case →
BrandProduct UXIllustrationPrintMotion

Growing with a startup

Audiotrip's only designer for five years — from inherited, basic MVP designs to national awards, European accelerators, and a Kickstarter campaign. Growing with it the whole way, learning to make whatever each new stage needed.

My role
Sole multidisciplinary designer — brand, product UX, illustration, print, motion, and the pitch decks.
Decisions
Built one light, clear, welcoming style: modern mobile layouts and hand-drawn illustration, suited to travel. Used it across both customer-facing work and professional business materials.
Outcome
Poland's most-awarded startup of 2014, a place in three European accelerators, and the main prize at Startup Sauna.
The Audiotrip app icon on the brand's hand-drawn traveller-motif pattern Audiotrip key visual — a phone showing the trip catalogue beside a hand-drawn city skyline and a dashed travel route Audiotrip onboarding screen — 'Listen to amazing stories uncovered for you' — over a photo of someone listening on headphones
Read the full case →
Claude Code Claude Design Lovable Figma Framer After Effects DaVinci Resolve

03 — Judgment, not just output

How I work now

AI makes output faster and easier than ever. But the judgment underneath (logic, usability, knowing what's worth building) matters more now than it ever has.

Structure before surface

Most of a product is decided before it looks like anything — the flow, the logic, how the parts connect and hold up as it grows. I get that right first; the interface just makes it legible.

Clarity is the key part

Visuals do real work — but in service of one thing: a product that's genuinely clear to use. And the tougher the domain — regulated, tangled, high-stakes — the more that clarity is the real job. I cut what doesn't serve the user and hold the path simple under the constraints that don't move.

Direct the AI, own the calls

I use AI hard and trust it little. It makes the output fast; it doesn't decide what's right. I read every result, catch what it gets confidently wrong, and keep the design, usability and data calls mine.

Made to ship, with the team

I design toward what can actually ship, not what demos nicely — working close to the people who own the constraints, engineers and stakeholders both. Get a real version out, watch how it holds up, then improve it. No ceremony.

On the changing process

A couple of years ago, I'd have drawn my process as a loop — one stage after another, all the way round to assess, then start over. That loop is gone.

Now it's become a mesh: research, design, building and testing happen almost at once, feeding each other in real time. And because I build as well as design, I can take an idea all the way to something live on my own.

That speed is the risky part. When output is this fast and this parallel, it's easy to ship something that only holds together on the surface. So the grip matters more, not less: the user is the fixed point, and keeping vision and usability steady is what keeps the whole thing honest.

I direct the tools hard and trust them little. They make the output; they don't make the calls — the design, the usability logic, the data behind every number stay mine. I'm honest about my scope: I direct the build, I don't write the code. But directing it well is its own craft — knowing what to ask for, catching what the model gets confidently wrong, and stopping before the polish outruns the thinking.

I still love the old craft, and I keep my hands in it — the tools are there to sharpen the work, not to do the thinking. Used with judgment, they don't replace the craft — they raise the ceiling. I used to be fast. Now I'm faster, and I can do more.

Then · the loop

Now · the mesh

It's a light hand on the reins — like riding a horse that knows the way home. There's no point oversteering it, but you still need to be in charge.
Joanna Jewstrat

04 — How I got here

Many crafts, one mindset

I've never been just one kind of designer — print, brand, product, motion, now working software. The tools keep changing, but the mindset never does. Every time, it's the same: drop into an unfamiliar system, learn it from the inside, and make something worth using.

Each chapter raised the stakes — a print studio, an early-stage startup, regulated health at national scale, now solo AI builds. Each one left me with something to carry forward: a new craft, a new domain, a new way of working.

2008
Hands & machines

Print studio — CorelDraw and CNC machines. Designing and making, by hand.

2013
Whole surface

The one designer at an early-stage startup — app, brand, campaigns, decks, all of it. Through growth and a funding round.

2021
Regulated, at scale

Sole designer for a national digital-health platform — through its growth, and its acquisition.

2026
The newest tool

Now building with AI — the most promising shift in years, and learning it from the inside, same as ever.

Away from the screen is actually where a lot of my design thinking comes from. Unfamiliar, high-stakes environments demand a truly open mind and careful judgment of what's real. They've taught me to keep only what serves a purpose, learn fast, and make the best of it. The same judgment I bring to the work.

A spinnaker sail filled with wind aboard a sailboat mid-ocean
Two Atlantic crossingsSailboat prep · ocean-tested
A diver exploring a sunlit underwater cave
DivemasterCertified pro diver
A paraglider's-eye view of boots hanging over a river valley and town far below
At home in the airParaglide pilot · aviation pro
Ornate temple doors opening onto a golden-lit inner hall
Life across continentsEurope · Caribbean · SE Asia

05 — Open to the right role

Let's build something together

I'm after a senior in-house or contract role where I design, prototype and preferably also build — somewhere modern and ambitious, with the room to keep growing.

Remote · Europe-first, US/Canada open

Currently available

Direct
Emailjewstrat.joanna@gmail.com LinkedInin/joanna-jewstrat-uxui-product CVDownload PDF