Bumble Tech
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Bumble Tech

From zero to Cosmos — Part #1

First part: where everything started, and where I reaped the fruits of my labour

Illustration from the book “The User‘s Journey“ by Donna Lichaw

Under the radar

You could spot all the “classic” architectural errors: global declaration in the root scope of CSS, no modularisation or identification of “patterns”, a lot of repetitions and code duplications.
A collage of how the UI elements and web components were displayed in the Mobile Web style guide, in its early days.

It gets noticed

  • the fact that both the designers and the developers were relying too much on copy&paste when developing the UI
  • the absence of modularisation was leading to code duplication and the impossibility of reusing the code
  • there were too many small differences and inconsistencies in the UI
  • there was a problem of obsolescence in the Sketch files used by the designers, and they did not have a holistic view when designing or redesigning the product features.
  • better consistency across applications/platforms and a more cohesive experience for the users
  • improved velocity in designing/developing new features and shorter time to market
  • systemic design approach and more control over what gets implemented (and how) in the UI
  • a simplified, more efficient (and less error-prone) process for both the designers and the developers
To show what the benefits of a Design System are (and to appeal to the designers’ needs) I created some mock user profiles :)



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Cristiano Rastelli

Design System Lead at HashiCorp. In love with Atomic Design, Design Systems & CSS architecture. Attendee/speaker/organiser of tech conferences and meetups.