HTHayrettin TopcuUX/UI Designer

References

Work

Ongoing
Research Project 2026–2027
01
Airbus
Explainable AI interface for AI-assisted helicopter landing.
Completed
In-Car Application 2026
02
UX Lead at Mercedes-Benz
Served as UX Lead for an international in-car application.
Completed
Allvest & Allianz products 2025–2026
03
Allvest
UX/UI design for an upcoming international go-live, including user research, usability testing and the design system.
Completed
Peer-reviewed paper 2026
04
IEEE IV 2026
Enhancing Teleoperation Performance for Automated Vehicles Through Bird’s-Eye View Augmentation
Completed
TH Ingolstadt 2025
05
Navira
Mobility app that makes autonomous shuttles in public transport transparent, with an explainable AI assistant.
Completed
THI × QUT, Linköping & York 2024
06
Rehapp
Remote rehabilitation for amateur athletes and their doctors, supported by a smart training gadget.

About

I’m a UX/UI designer passionate about shaping the future.

Currently pursuing my M.Sc. in User Experience Design at Technische Hochschule Ingolstadt. Having spent an exchange semester at Hanyang University in South Korea, I love exploring different perspectives and cultures – a curiosity that directly shapes how I approach complex problem-solving and emerging technologies like AI.

Outside of research and design, you’ll usually find me on the padel court, traveling, or diving into new challenges—whether that’s boxing or experimenting with new recipes in the kitchen.

Based in: Ingolstadt, Germany
Studying: M.Sc. UX Design at THI

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Contact

Let's create something
impactful together.

Whether it's a role, a project or a chat to get to know each other, I'd love to hear from you.

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Rehapp

Completed

Remote rehabilitation for amateur athletes and their doctors

Rehapp doctor app on a MacBook next to the patient app on an iPhone

Product: Rehabilitation app
My role: UX Designer
Timeline: 2024
Team: 3 students
Partners: TH Ingolstadt, Queensland University of Technology, Linköping University, York University
Skills: UX research, Personas & user journeys, Interaction design, Prototyping, Branding

Rehapp lets amateur athletes continue their rehabilitation at home, guided by a digital training buddy and a smart balance board, while their doctors follow every step remotely.

In an international project at TH Ingolstadt with QUT, Linköping University and York University, I designed the patient app, the doctor app and the gadget concept in a team of three, from research and personas to the branding and a functional prototype.

Problem: Rehab stops at the clinic door

Rehabilitation still depends on in-person appointments. Long waiting times, limited slots and little room for individual adjustments slow recovery down, and between appointments patients are largely on their own.

Doctors, in turn, hardly see how their patients are doing at home. Problems often only surface at the next appointment.

#2: The ankle is the second most injured body site in sport; sprains are the most common ankle injury.[1]
46 %: of people with a history of ankle sprains live with chronic ankle instability.[2]
Up to 70 %: of patients don't do their home exercises as prescribed.[3]

Research: Where recovery gets stuck

We started with sports injuries: a talk by a physician specialised in rehabilitation, scientific literature and our own research. From there, we mapped the pain points on both sides of the therapy.

Patients

Heavily dependent on in-person appointments
Problems only show up at the follow-up
Unsure whether exercises are done correctly
Motivation drops over long recovery periods
Long waiting times due to overloaded practices

Medical staff

Hardly any contact with patients between appointments
High administrative workload and repetitive tasks
No tools for personalised therapy plans
Limited capacity for preventive care

Max Marathon

28 · Amateur marathon runner · Duisburg

Injury: Landed awkwardly during an intense training session and tore the lateral ligament in his ankle.
Motivation: Get back to full fitness as fast as possible for his next marathon, without risking setbacks by loading the ankle too early.
Problem: Wants to keep doing his exercises on his own instead of waiting for the next appointment, but is unsure how to do it right.

“I want to keep training on my own. But I'm never sure if I'm doing it right.”

Solution: Therapy that continues at home

Rehapp connects three parts: a patient app that brings training, nutrition and medication together in one place, a doctor app that gives physicians a central view of every patient, and a smart balance board that checks each exercise in real time.

Everything starts with a QR code

After the diagnosis, Max scans a QR code at the practice. His therapy plan, appointments and medication are in the app right away.

Welcome screen with the Rehapp training buddy

Patient home with today's tasks and the training card

Smart gadget: A balance board as training partner

Depending on the injury, patients receive a matching gadget. For Max's ankle, it's a smart balance board for balance training.

Pressure sensors measure how his weight is distributed across both feet. Together with the phone camera, the training buddy corrects each repetition in real time, prevents overloading one side and makes long-term progress visible.

Patient app: the balance board is connected to the training buddy

Doctor app: Every patient at a glance

The doctor app gives physicians one place for patient data, appointments, tasks and messages, and shows in real time how each patient is progressing between appointments.

Daily overview

Today's appointments, open ToDos and news from patients, such as new training data or lab results, on one screen.

Doctor dashboard with today's appointments, ToDos and news

Patients by recovery status

Every patient card shows the injury, the week of rehab and whether recovery is on track, needs attention or is critical.

Patient overview sorted by recovery status

Patient profile

Diagnosis, measurements, check-ups and the treatment plan in one view. The performance chart shows the weight Max applies to his ankle, measured by the balance board.

Calendar and ToDos

In-person and remote check-ups in one calendar, and tasks with checklists, so nothing falls through the cracks.

I’m Hayrettin – I designimpactfulimpactful products that scalescale.

Airbus

UX Lead at Mercedes-Benz

Allvest

IEEE IV 2026

Navira

Rehapp

I’m Hayrettin – I design
impactful products that scale.