Csongor Farkas

Hi, I'm Chong. I design digital products that bring clarity to complex workflows.

I'm a Berlin-based Product and UX/UI Designer with 12+ years of experience designing products end-to-end — from research and product architecture to interfaces and scalable design systems. I'm currently at Onstruc, working on the product across iOS, Android and web.

I build products around how people actually work — so they hold up in real hands, not just in the mockup.

Sparkify

Rebuilding a field‑documentation app from scratch — and the design system behind it

Sparkify — the app across its core screens

Rebuilt a field-documentation product for German electricians around how the work actually happens — with the design system carrying it across iOS, Android and web.

  • 600 documentations a day
  • 27 languages

House of Mobile & Games

Redesigning an e‑commerce homepage and lifting conversions by 46%

House of Mobile & Games e-commerce homepage preview

A filter-first homepage that put the repair journey first, validated against the old design in an A/B test.

  • +46% conversion
  • A/B tested

Social Skills Animation

Turning social stories into animations a therapist can build inside a session

Social Skills Animation app and character illustrations preview

A zero-to-one therapy product built with autism institutes and the therapists who use it — now in daily clinical use.

  • WSIS 2020 Champion
  • Autism Europe

Junge Freiheit

Making a 40-year-old publication legible again online

Junge Freiheit website redesign preview

Readers distrusted the content and took the articles for advertising — so the redesign became a trust and content-discovery problem, not a visual refresh.

  • Won its A/B test
  • Research-led

Kinderleichter Arbeitsschutz

Giving a safety-services business its first digital product

Kinderleichter Arbeitsschutz website preview on a device mockup

A consultancy that could only sell people on site. I designed the platform that gave it something to sell online — services, a shop, seminar booking and a members’ area in one structure.

  • Two sites → one platform
  • Shop, booking, courses

Second Opinion

Getting a patient to trust a doctor they have never met

Second Opinion telehealth app preview

Connecting patients to a certified doctor by video in minutes. Speed was the easy part — the design problem was helping someone feel sure about a stranger on a screen.

  • Tested in 4 countries
  • Retested after fixes