Business informatics · Human-computer interaction
RaphaelZähringer.
I like working where IT, business teams and users meet, and I help turn requirements into software that works in everyday use.
Projects
A small selection of my work so far, from research, university, freelance and personal projects.
Making long-distance passenger information tangible for the simulator community
A grown association website becomes clear, accessible and self-managed
A trustworthy brand for institutional investors
How a decision support system changes diagnosis in anaesthesia teams
Fewer interruptions for anaesthesia nurses
One cockpit instead of six displays: the driver workplace rethought
Public transport that tells you in advance
All accounts, payments and receipts in one app
What I bring
I combine business thinking, technical understanding and user-centred work. I learned this in a dual study programme, in support, in product management and in research.
years of practice since 2017
projects in the portfolio
Translate requirements
I talk to business, engineering and users and write down what everyone understands the same way. Second-level support and product management at Testo taught me where misunderstandings start.
Test early
Prototypes, observation and studies instead of assumptions. From click prototypes to high-fidelity simulations with 14 anaesthesia teams.
Guide adoption
New software only helps once it is used. I have built document templates and explainer video formats that lower adoption barriers.
About me
With a master’s in human-computer interaction and a dual bachelor’s in business informatics, I combine technological innovation, user-centred design and an understanding of business.
I believe good technology should be clear, accessible and easy to use. My experience ranges from second-level support and product management to rolling out new software in organisations.
Highlights
- ACM CHI 2025Paper on the Cassandra study, published and recognised
- Grade 1.0Visual Interface Design, Mobiability concept
- Grade 1.3M.Sc. (Master of Science) Human-Computer Interaction
Business & process
Product & innovation
UX & HCI
Technology & tools
Career
- 2023 – now
FreelancerSelf-employed
Concept, design, technical build and maintenance of user-centred websites. Communication material for web, print and social media.
- 2022 – 2023
Testo Industrial ServicesKirchzarten
Developed and integrated new document templates for process and quality management. Explainer video formats to lower adoption barriers for new software.
- 2021 – 2025
M.Sc. Human-Computer InteractionUniversity of Würzburg
Analysis of human-technology interaction to create intuitive, user-centred solutions. Graduated with 1.3.
- 2019
Testo North AmericaWest Chester, USA (United States of America)
Product management, technical support, marketing and sales in a start-up environment. High ownership, direct customer contact.
- 2017 – 2020
Testo SE & Co. KGaALenzkirch · Dual study programme
Second-level product support, product management and product ownership. Analysis, modelling and optimisation of digital business processes.
Contact
I am looking for a full-time role in product management, digitalisation, UX (user experience) or project management in southern Germany, Switzerland, Liechtenstein or Austria. I look forward to hearing from you.