An outstanding user interface is an elegant symbiosis of usability, aesthetics and technology. With this goal in mind, our agile team of psychologists, computer scientists and designers manages to think, communicate and create across disciplinary boundaries.

Management & Administration

Thomas Immich

Managing Director, Head of Visual Design, Dipl. Computer Scientist (FH)

Thomas Immich is a co-founder and director of Centigrade and responsible for managing the company's visual user interface design division. Thomas holds a Diploma in computer science from the University of Applied Sciences Kaiserslautern, having completed his studies of Digital Media with an award-winning thesis on user interface prototyping. Since then Thomas concentrates on user-centered design methods with regard to their technical feasibility and tool support. During this time he worked as a user interface design lead in numerous client projects, consulting development teams in the visual and conceptional optimization of user interfaces.

Simon Albers

Technical Director, Head of Development

Simon Albers is a co-founder and director of Centigrade and in charge of the software development division. He specializes in the programming language Java with a strong focus on graphical user interfaces. During his career he supervised the realization of several customer projects and worked as a consultant for the technical architecture of complex Rich Clients. Several years of work experience in the field of usability engineering and evaluation enable him to elegantly link user-driven requirements and technical feasibility.

Dr. Markus Weber

Usability Engineer, Head of Usability Engineering, Dipl. Psychologist

Markus Weber is responsible for the company’s usability engineering division. He studied at the Saarland University, where he also received a doctorate with a thesis on eye tracking in an eLearning context. In his function as usability engineer, he is concerned with agile usability processes and the efficient cooperation of usability engineers, user interface designers, and developers amongst other things. His activities include the realization of requirements analyses, usability evaluations, and interaction designs which he conducted in numerous projects within different business sectors.

Petra Ripplinger

Administration, Bank Officer and Language Secretary

Petra Ripplinger has a long work experience as personal assistant on management level. As trained bank officer and language secretary she has worked in diverse sectors (chemical industry, advertising, banking) and is therefore perfectly acquainted with all tasks and procedures in modern office management. As first contact person for Centigrade's clients and suppliers, she is in charge of commercial correspondence, time scheduling and all matters of organization and administration.

Luzie Seeliger

Project Coordination and Communication, Magistra Artium

In 2010 Luzie Seeliger graduated from Saarland University in German and Comparative Literature. During her studies, she worked for the Saarbrücker Zeitung and also as an editorial journalist in the online department of the broadcast station Saarländischer Rundfunk (SR), gaining proficiency in the field of journalism. Following to her work as a copy writer for a local advertising agency she gained several years of working experience as an online editor and press officer in Saarland's Parliament. As Centigrade's Project Coordination Manager she is also in charge of External Communications.

Usability Engineering

Kai Deller

Interaction Designer, Bachelor of Computer Science

As a cognitive and media scientist Kai Deller concentrates on conception and design of Interaction. Having worked in the field of Journalism and PR, he also attends in the creation of information architecture and information design. His core responsibilities at Centigrade thereby result in conceptioning and prototyping and in doing so he currently committed his passion especially to the paradigm of mobile platforms.

Tobias Gölzer

Interaction Designer, Bachelor of Science in Computer Science and Media

Tobias Gölzer studied Media Informatics at the University of Applied Sciences in Kaiserslautern and focused on Human Computer Interaction and Design. In his bachelor thesis, he designed and developed a Blend-plugin for real-time visualization of input on touch- and pen-based devices.
As interaction designer at Centigrade he deals with the design of user-friendly and efficient interaction forms.

Dr. René Liesefeld

Usability Engineer, Dipl. Psychologist

René Liesefeld works as scientific advisor for Centigrade. He contributes to the conception and analysis of usability tests and of alternative approaches to the evaluation of usability. This work benefits from his knowledge of cognitive psychology and statistics as well as from his expertise in analyzing information architectures and interaction designs. His goal is to adapt the user interface to the cognitive abilities of the user instead of forcing the user into the resource-consuming and error-prone process of adapting to the user interface. After studying psychology he has obtained his PhD with a thesis on spatial-information processing in mental rotation and its neuronal correlates in the human brain. René Liesefeld also holds a postdoctoral research position in General Psychology at Saarland University, where he currently investigates the cognitive and neuronal bases of visual information processing.

Martin Hesseler

Interaction Designer, Master of Science in Computer Science and Media

Martin Hesseler studied Media Informatics at the University of Applied Science in Cologne. He focused on interaction design and user experience. In his master thesis, Martin dealt with online trust, i.e. the trust, which is established towards often unfamiliar parties during online transactions. At Centigrade he deals with the conception of user-friendly interfaces and interaction designs that also generate an overall positive user experience.

Andreas Burghart

Interaction Designer, Bachelor of Arts

Andreas Burghart studied Interaction Design at the University of Applied Sciences Schwäbisch Gmünd. In his studies he focused on software design and data visualization. His bachelor thesis dealt with approaches for the beneficial application of digital media within the German emergency system. At Centigrade, Andreas works at the juncture of Usability Engineering and Visual Design, where, amongst other things, he makes sure that user-friendly interaction designs are communicated efficiently to visual designers.

Maren Wolff

Trainee, Bachelor of Science in Psychology

Maren Wolff earned her Bachelor of Science degree in Psychology in Saarbrücken in 2011. In her Master studies she specializes in Cognitive Neuropsychology as well as Work- and Organizational Psychology. In the context of her studies she is completing an internship at Centigrade where she supports the team in conceiving, conducting and analyzing usability-tests as well as in creating interaction design.

Visual Design

Florian Moritz

User Interface Designer, Dipl. Computer Scientist (FH)

Florian Moritz is devoted to compelling user interfaces. He studied at the University of Applied Sciences in Kaiserslautern and possesses substantiated skills concerning the development of websites and Rich Internet Applications (RIA). His thesis focussed on the convergence of web and desktop concepts to Rich Internet Applications in a user interface context. Furthermore, his strengths are located in the fields of conception and design of GUIs and touch screen HMIs, prototyping, icon design and styling and development of Silverlight/WPF applications.

David Patrizi

User Interface Designer, Bachelor of Computer Science and Media

David holds a bachelor's degree in computer science in media at the University of Furtwangen. His thesis dealt with the graphical design of an interactive menu for mobile phones. As a user interface designer, David Patrizi is primarily responsible for the conception and design of high-quality icons. He gained experience in the field of design during his time as a web designer at Nintendo Europe and also a social community platform.

Jenny Gemmell

User Interface Designer, Bachelor of Computer Science and Media

Jenny engages herself in creating modern and asthetically appealing user interfaces and icons, advocating a constant sense for usability and user experience. While completing her studies of Applied Cognitive and Media Science her thesis dealt with designing peripheral awareness artefacts within a social network system for the elderly. Again focusing on both perfection of detail and the big picture Jenny broadened her skills by working on mobile platform applications. Her passion and strengths now lie in the field of digital and visual design.

Jonas Stallmeister

User Interface Designer, Dipl. Communication Designer (FH)

Jonas Stallmeister is concerned with user interface aesthetics. He develops layouts and icons that guide users with clear visual signals and order. He studied Communication Design at the Darmstadt University of Applied Sciences with both interest and respect for infographics, typography and instructional design. Working closely with user interface developers, he efficiently uses these tools to create appealing and usable interfaces. Jonas Stallmeister heads Centigrade's Frankfurt am Main office

Sascha Blättgen

3D User Interface Designer

Sascha Blättgen concerns himself with visual communication, looking back on over 10 years of work experience. His focus lies on the combination of form and color as basis for a clear and emotionally expressive visual language. He covers illustration, motion design and user interface design in 2D as well as 3D. His experience includes working as designer in the games industry and contributing to a project of the Köln International School of Design and the Romano-Germanic Museum. Sascha Blättgen works at Games Factory Ruhr, Centigrade's Mülheim office, where he is in close contact with the gaming industry.

Jonas Laux

User Interface Designer, Bachelor of Arts

Jonas Laux gained his bachelor degree in Intermedia Design at the University of Applied Sciences Trier. During his studies he mainly focused in the fields of planning and creating interactive and hypermedia systems with an orientation towards games and gamification. He conceived and implemented a Point & Click Adventure and was part of a design team for a Social Game Community. His main role at Centigrade is the design of visually pleasing and easy to use user interfaces as well as intuitionally understandable icons.

Christina Hess

Bachelor Candidate in Computer Science and Media

Christina Heß studies Media Computer Science at the University of Applied Sciences in Kaiserslautern. During her studies she focused on Human Computer Interaction. In her bachelor thesis she conceptualizes and implements various marketing instruments to optimize the conversions of the Centigrade Shop.

Design Engineering

Alexander Keller

User Interface Design Engineer, Bachelor of Science in Computer Science and Media

Alexander Keller completed his studies in Media Informatics at the Fachhochschule Kaiserslautern. In his bachelor thesis, he dealt with the conception and implementation of an Expression Blend Plugin to visualize input scenarios on touch devices. As a User Interface Design Engineer, his main assignment at Centigrade consists in realizing high-quality Screen Designs and interactive prototypes in the fields of Silverlight and WPF with Expression Blend. He thus works at the intersection of User Interface Design and User Interface Development.

Iris Wörsdörfer

Senior User Interface Design Engineer, Dipl. Computer Scientist in Media

Iris Wörsdörfer studied Media Informatics at the University of Ulm. During her studies, she focused on software engineering, media education and media psychology. In her thesis she designed and developed an e-learning class. Having worked in user interface development with WPF and C# for several years, she realized multiple software projects as developer and project lead. She works at Centigrade's Mülheim office, where her main focus is the development of high-quality user interfaces in the industrial sector.

Günter Pellner

User Interface Design Engineer, Bachelor of Art & Technology

Guenter Pellner has studied Art and Technology at the Saxion University of Applied Science in Enschede (Netherlands). During his studies he was mainly engaged in topics that were directly or indirectly related to video-games. Amongst other things, he created a prototype of a 3D computer game, while he was working on his Bachelor thesis. Within this process, he was responsible for every task, including, but not limited to the creation of all visual and hearable assets as well as the implementation of the program code in Unity 3D. At Centigrade, Guenter mainly works in the field of GUI conception and implementation, as well as icon and interaction design, where he often benefits from his experience as a former game developer.

Jörg Preiß

Senior Software Engineer

Looking back on 20 years of work experience in user interface development Jörg has focused his area of expertise on optimizing both software architecture and the modularization of program structures. He has successfully worked on a number of national and international projects in his time. As a software engineer at Centigrade he concerns himself with expanding the bounds of WPF Ð challenging the more singular characteristics of XAML on a daily basis: striving to use the MVVM-pattern to maximal effect frameworks like Prism, ReactiveUI and Cliburn.Micro have to be analysed, their respective features and ranges of application evaluated as to apply them knowledgably in an individual scenario. Furthermore Jörgs's interests lie in test driven development and usage of functional components in object-oriented environments. To stay on top of technical progress and innovations in this field he actively applies himself in the .NET community.

Jochen Maurer

Senior Software Engineer, Computer Science Business Economist (VWA)

In his capacity of IT-manager at a financial services firm Jochen has successfully realized and executed countless software projects over the past few years. He specialises in the development of data-driven applications as well as in process integration and reporting. His main focus at Centigrade is centred on user interfaces based on .NET Ð concurrently applying the concept of data binding to maximal effect.

Frederic Frieß

User Interface Designer and Developer, Bachelor of Computer Science

Frederic Frieß concluded his bachelor degree in computer science, at the University of Applied Sciences in Wiesbaden. During his thesis he worked on tangible user interfaces combined with multi-touch elements. One of his prior interests is 3D computer graphics. In this respect, he currently deepens his knowledge within the areas of real-time computer graphics, animation and modeling. At Centigrade his responsibilities cover both technical and design activities.

Philip Schäfer

Software Engineer

Philip Schäfer studies Computer Science at the University of Furtwangen. In his bachelor thesis, he examined the Windows RT API's UI framework with particular respect to core differences to the WPF. Working as Head of Human Resources in a Junior Enterprise allowed him to gain first practical experiences in the areas of project management and IT development. Moreover, an internship in SAP's Research Center in Zurich (CH) enabled him to gain further knowledge in the development of distributed systems, particularly in the implementation of server and middleware components as well as in the realization of mobile applications and the definition of architectures and interfaces. At Centigrade, Philip is currently part of the XamlBoard development team.

Java Development

Patrick Decker

Software Engineer, Dipl. Informatiker (FH)

Patrick Decker completed the degree of Applied Sciences with distinction at the University of Applied Sciences in Trier. Before he started working as a GUI developer, he was involved in the implementation of a Java-based renderer for XML, which implements the CSS 2.1 Standard of W3C. He was also engaged in the creation of a well-known German game. At Centigrade his main focus lies on the development of Java Swing GUI components and screens using the presentation model approach.

Additional Team Members

Anne Immich

Human Resources and Public Relations, Dipl. Psychologist

Anne Immich finished her studies at Saarland University in 2007. Since then she is in charge of the acquisition of qualified employees at Centigrade. Furthermore, she is responsible for recruiting test subjects for usability tests and supports the team at trade fairs.