Geffrey's Portfolio
10+ years as Product Designer, Owner, and Manager. Selected projects below.
Smartlab
Next-Gen radiopharmacy workflow management
Construction
Streamlining construction measurement & communication
Hotel
Improving hotel guest experience with IoT
More Projects
Professional & self-initiated work. Linethrough = inactive.
Music Science Explained
Bringing music science to the public.
- Duration: Mar 2025 - Present
- Role: Initiator / Writer
Keepcode
Learning to code (Vue.js & Firebase) via a code snippet library app (design & dev).
- Duration: Jul 2020 - Sep 2020
- Role: Initiator / Developer / Designer
Metal.fyi
Heavy Metal music blog & recommendations (SEO, community, site dev).
- Duration: Jun 2020 - Sep 2020
- Role: Initiator / Developer / Designer
Vitalc.fit
First Vue.js fitness app (self-taught front-end dev).
- Duration: Feb 2020 - Apr 2020
- Role: Initiator / Developer / Designer
Concraft Handwerker App (Construction-worker app)
Mobile project management (chat, files, tasks). UX & visual design for original & revamped app.
- Associated with: Bitfactory GmbH
- Role: Product Designer
DOKApp
Initial UI design, focused on filter & search functionality.
- Associated with: Bitfactory GmbH
- Role: Product Designer
Daimler Trade In App
App for Daimler dealers & customers to facilitate used car sales.
- Associated with: Bitfactory GmbH
- Role: Product Designer
KLEVERBILL
Requirements & initial UI design for dunning & receivables management.
- Associated with: Bitfactory GmbH
- Role: Product Owner/Designer
Mobile Service App – Karl Storz
User-friendly, on-brand mobile app for medical device maintenance.
- Associated with: Bitfactory GmbH
- Role: Product Designer
Pumpmove Fitness App
First fully visually designed mobile fitness app (complex conditional UIs).
- Associated with: Bitfactory GmbH
- Role: UI/UX Designer
Recaro eGaming AR app
AR preview app for gaming chairs (usability & UI design).
- Associated with: Bitfactory GmbH
- Role: UI/UX Designer
Viasto Mobile Videointerview App
UI design for video interview application.
- Associated with: Bitfactory GmbH
- Role: UI/UX Designer
kybun Kundensupport
Design contribution to kybun's customer support app.
- Associated with: Bitfactory GmbH
- Role: UI/UX Designer