Eduard Warkentin
User Experience Design Specialist

I am a freelance, Berlin-based senior user experience designer with more than 15 years of experience in research, analysis, conception, design and development of interactive applications.


Eduard Warkentin for Vattenfall my Highlights app


Since 2021
Supporting sustainable development

I have been supporting Vattenfall as a UX specialist since spring 2021. In addition to the Vattenfall myHighlights app, I also work on various conversion pages for products in the ecological sector such as solar, e-mobility and heat pumps.

Analysis, Information Architecture, Wireframing, Prototyping, User testing, UI Design

Eduard Warkentin UX/UI-Design Growney Web App


Since 2017
Making investments easy – for everyone

Early 2017, the Berlin fintech startup Growney asked me to redesign their website and the same named webapp. The development should be evolutionary and based on user tests. An ongoing cooperation developed.

User Research, Analysis, Information Architecture, Wireframing, Prototyping, UI Design, CSS Specs

Eduard Warkentin UX/UI-Design for GLS eComLab

Bettermile (GLS eCom Lab)

2017 – 2023
Creating exceptional delivery experiences

From 2017 to 2023 I supported Bettermile, a start-up of the international logistics company GLS as UX Designer in order to make delivery more efficient and user-friendly.

User Research, Analysis, User Flows, Wireframing, Prototyping, UI Design

Museum Barberini

Relaunch with focus on accessibility

In 2020 I was part of the Stan Hema team to relaunch the Museum Barberini website. I was responsible for the event filter logic as well as wireframing for the event overview and collection. We also developed a hi-fi prototype based on real event data to test and design the filter logic.

Analysis, Information Architecture, Wireframing, Prototyping

Eduard Warkentin IA for Bette Website @ Stan Hema


In-depth analysis and recommendations

Analysis of visitor statistics and information architecture. Creation and evaluation of user tests and interviews of all relevant user groups. Followed by concrete suggestions for improvement using wireframes for the website of a manufacturer of premium bathroom products.

User Research, Analysis, Information Architecture, Wireframing


Streamlining and focusing of a product website

In summer 2020 KREATED reworked Nextmarkets' brand. In this process, I supported the redesign of the product website as a UX expert. In addition to implementing the new visual language, the focus was also on reducing the content to the essentials. From a multi-page structure to a one-pager.

Information Architecture, Wireframing, UI Design

Eduard Warkentin UX-Design Wireframes Ideal Universal Life

Ideal – My Universal Life

Taking an insurance product to the next level

In the summer of 2019, I joined the My Universal Life team at Ideal Versicherung to fundamentally improve the web interface of the insurance product of the same name.

Analysis, Information Architecture, User Flows, Wireframing, Prototyping

Eduard Warkentin UX-Design Wireframes Urania Berlin Website

Urania Berlin

Making accessible what's the most important – on every device

With a long tradition of over 125 years, Urania Berlin has established itself as one of the leading centers of dialog between science and the public. In 2018, it commissioned Stan Hema to redesign its entire brand communication, including the website, which was to become the main place for ticket sales.

User Research, Analysis, Information Architecture, Wireframing, Prototyping, CSS Specs

Eduard Warkentin UX/UI-Design Cymra Web App


Cymra – Norwegian start-up for digital workbooks

Cymra is a simple and intuitive tool for creating digital workbooks and online learning resources where you can easily move from idea to sketch board and draft to final product. The task was to provide a pleasant reading, navigation and working experience on all devices. The result was a responsive Hi-Fi prototype and a bunch of ideas and suggestions inspired by ebook readers.

Analysis, Wireframing, Prototyping, UI Design

Eduard Warkentin UX/UI-Design Stim Logbook Universal App

Stim Logbook

2015 - 2016
An example of benefits of Microsoft's Univeral App Platform

Stim Logbook is a driver logbook which uses the advantage of Microsofts Universal App Platform to provide a seamless cross device experience. Through the app and GPS, the smart phone works as a drive recorder but it also allows to review and edit rides, routes and destinations. The tablet/desktop app offers a advanced graphical output and a convenient way to edit entries.

Analysis, Wireframing, UI Design, XAML Specs

Eduard Warkentin UX-Design Citrix Partner mobile App

Citrix Partner Mobile

A fast MVP for Citrix Partners

Back in 2015, I was involved in the design and development of the Citrix PartnerMobile App. It was an MVP and formed a portal to many of the company's web services.

Analysis, User Flows, Wireframing, UI Design

Eduard Warkentin Color Weather App

Color Weather

2014 - 2016
A free app project

Color Weahter was a free project of mine and my entry into app development for Windows Phone. The special feature of the app is the dynamic color theme depending on the temperature.

UX/UI Design, Development (C#)


Designing based on data, not feelings

Whenever possible, I always work on the basis of facts – access statistics, user tests, interviews with users and stakeholders...
In this way, all team members have a common understanding of requirements and goals without being completely dependent on personal feelings and assumptions. Especially with existing products it is easier and cheaper than ever to collect significant data.

Product development must be iterative

A digital product is never finished. On one hand, because technical development is so fast, on the other hand, because with each release new insights into users and usage can and must be gathered. The analysis of this data starts a new iteration loop and allows an improvement. Often it becomes really interesting only at the second round, because often only then you have the necessary data. Therefore I prefer a long-term cooperation with my clients.

Eduard Warkentin Design and Development Process

Release faster, learn faster

I am a proponent of several smaller releases instead of one big one. Not only because users get new functions faster and get the feeling that the product is being taken care of. It's also because you gain new insights more quickly. I'm also a fan of the MVP concept.

Deep understanding of technical development

Since I also work as a frontend developer (on a small scale), I have a good, always up-to-date understanding of development processes. This enables me not only to communicate with developers, but also to realize a cost effective design process and implement hi-fi prototypes.

Focus on function with an eye for aesthetics

The most beautiful visual design is useless if the product is not understood. Nevertheless, a really good user experience also needs the appropriate visual appearance. Even though my focus is on conceptual design, I have many years of experience as a UI designer. Furthermore, I often work closely with art directors, UI and communication designers.


User Research
Prototypes (Lo and Hi-Fi)
User Tests
UI Design

JavaScript (JQuery)
Kirby CMS