Sergey Berezyuk, Designer, Portfolio

UI delivery that sparkle the multi-dollar deal

From SaaS Revenue Operating System for airlines transformation to modular airline retailing

Client

  • FLYR

My role

  • Design System Lead
  • Interaction Designer
  • Front-End Developer, React.js

My responsibilities

  • System architecture
  • Components design
  • Usability testing
  • Roadmap planning
  • Product management

Team

  • Front-end Engineer, x2
  • UX Designer, x2

Date, duration

2023–2025, 24+ months

On this page

How it started

In 2021, every product team at FLYR was building their own tables, buttons, and forms. Each new feature meant reinventing the wheel. I saw designers spending weeks on basic UI instead of solving actual user problems.

I started small: extracted 20 components from existing screens, turned them into Figma assets, added proper spacing and color tokens. Showed it to leadership. They got it. In 2023, we hired a designer and two devs. Four people, one mission: stop rebuilding the same stuff.

In 2025, we had 50+ core components and 80 patterns, shared libraries and documentation. But the real win? FLYR used this system to build a complete airline booking experience for Riyadh Air in 6 months. That deal helped close a $295M financing round.

The system we built

Orville Design System — yeah, named after the Wright brothers. We're an airline tech company, had to go there.

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The Wright brothers made 12 seconds of controlled flight in 1903. It was crude, but it worked.

120 years later, an A320neo flies 6,000 km non-stop carrying 180 people. That didn't happen by accident — it happened through systematic engineering, standardization and incremental transformation.

That's what design systems do for digital products. Orville took FLYR's early UI experiments and turned them into production-grade infrastructure that now powers every product we ship.

What it includes
50 core React ↔ Figma components
All design decisions encoded in one source of truth
380 icons
Tabler-based, industry-specific, filled and outlined
Full data visualization library
Charts, graphs, tables with built-in accessibility
Living documentation
Confluence, Zeroheight, Storybook with version history
The foundation
Design tokens
3 tiers sync between code and Figma Variables and Token Studio
CAM02 color space
Matches how humans see color in different lighting
4pt grid system
Margins, paddings, space
Typography
Scale and system-ui fonts
Prerequisites
Subject definition
Design System is the official story of how organization designs and builds digital interfaces.
Area definition
Standards, assets, and processes to be shared across an organization.
Team mission
Make the ultimate user experience delivered faster.
Team deliverables
Design System assets, standards and processes based on the organization priorities.

The foundation

4pt grid system

Apllied to margins, paddings, gaps, widths, heights, border-radii.

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CAM02 (Ch) color space

This model shows color the way we actually see it in different lighting, backgrounds, and surroundings. In CAM02, the distance between colors matches how people really notice color differences, and it adapts to light by considering white point, brightness, and how our eyes adjust — something sRGB, HSV, and Lab do not do well. It also keeps hue steady when light changes, while chroma reflects how strong or colorful a tone looks in real life.

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Icon library

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Guidance
Documentation, contribution template, baking process
Filled and outlined
Scalable once baked, any size can be defined and used

What made it work

Clear language

We documented every state (rest, hover, focus, disabled), every slot (leadingVisual, trailingVisual), every intent (primary, danger, warning). Decision trees help pick the right component based on the use case. No more guessing what a component should do.

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State
  • rest
  • hover
  • pressed
  • dragged
State
  • focus
  • disabled
  • read-only
  • inactive
Slot
  • trailingVisual
  • leadingVisual
  • icon
  • text
Intent
  • neutral
  • primary
  • success
  • danger
  • warning
Object
  • bg
  • icon
  • text
  • border
  • shadow
Grade
  • min
  • weak
  • medium
  • strong
  • max

Portals

Confluence, Zeroheight, Storybook portals give designers, developers and product owners a searchable catalogue of components, usage examples and version history, eliminating the need for ad-hoc tickets.

Solid processes

Want to add a component, new property, or maybe an icon? Follow the template. Want to deprecate something? We have a plan for that too. Changes go through peer review, releases happen in stages.

Figma updates trigger Slack workflows

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Deprecation process in Figma

Old components are removed in a planned way with clear instructions on how to update them. Every change goes through a formal request and peer-review process. Releases are done in stages through automated pipelines, and the documentation is updated each time, giving clear guidance for future changes.

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Process description
This procedure is useful for next use cases:
  • totally remove a Figma component from the lib without any replacement.
  • deprecate and then remove a Figma component from the lib providing a replacement.

Procedure

  1. Duplicate original component
    1. duplicated component after applying all necessary changes must be published providing release notes
    2. original component must be renamed
    3. description field of the Figma component should be filled up with instructions (see template below)
  2. Rename
    1. ⚠ use a warning sign in the title: ⚠ Button
    2. add Banner with a message in order to keep visual separation from other components on the page
  3. Provide timelines
    1. by default any deprecated component in Figma can be removed in 2-3 months
  4. Tips
    1. Deprecating/removing library components will not change existing design layouts
    2. Restore Component button can be used in order to restore missing or removed components
    3. Communication link must be provided
Message template

Description

  • New version: Component Name (e.g. TableFooter)
  • Deprecated: MMMM YYYY (e.g. February 2024)
  • To be removed: MMMM YYYY (e.g. April 2025)
  • Reason: Describe reasons in 1-2 sentences, stay specific (e.g. Refactoring of the [prop name] was causing breaking changes)

Tips

  • Deprecating/removing library components will not change your existing design layouts.
  • Deprecated components will be removed after 2–3 months.
  • Use the Restore Component button to restore missing or removed components, however consider switching to a new version first.
  • Need help? Reach us in #design.

Core components

In code

Built with React.js, supported with Storybook and covered with Omlet.dev statistics.

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In Figma

❖ Accordion

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❖ Numeric

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❖ Checkbox

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❖ SegmentedControl

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❖ Button

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❖ ListItem

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❖ Stepper

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❖ Banner

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❖ Table

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Adoption

We didn't just build it and hope people would use it. We ran workshops. We answered questions in Slack. We tracked usage.

React library

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Via omlet.dev
100%
Total code components
+50% since 2023
~2k
React component usage gains
+49.5% since May 2024

Figma libraries

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Figma components adoption succeeded through targeted workshops and learning sessions. Components remain one of the key building blocks that designers can influence through the proper contribution process. Documentation keeps everything connected and accessible.

96.6%
Figma components inserts
31.2% less detaches, since 2024

What the team thinks

We survey twice a year. Latest results:

95.5%
Designer sentiment
+22.7% since 2024
87.5%
Engineer sentiment
+33.2% since 2024, 12 engineers

The system got its own budget. We hired another designer. Every new FLYR product uses Orville now (as of July 2025).


The Riyadh Air challenge

In 2024, FLYR needed to prove it could be more than a pricing tool — it had to become a full airline retail platform. Riyadh Air wanted a shopping cart, seat selection, ancillaries, payment flow. Standard airline stuff, but built modularly so other carriers could use it too.

Without a shared UI foundation, this would've taken 18+ months.

We had 12. Made it in 6.

My part

Coordinated a cross-functional team (designer + two front-end developers), making sure priorities matched company goals and that visuals and UI layouts stayed consistent.

We took existing Orville components and combined them into retail patterns.

  • Shopping Cart
  • Product Catalog
  • Ancillary Selector
  • Order Search

No new components needed. Just smart composition.

Travel Startup Flyr Raises $295 Million in Equity and Debt.

Bloomberg

Results

Shipped the entire booking flow (search → seat selection → cart → payment) in under 6 months. Riyadh Air announced the partnership. Bloomberg called them "the world's first digitally native airline." The $295M funding followed.

Now when product teams need a new feature, they don't ask "how do we build this?" They ask "which components do we use?"

Lessons learned

Start small
Don't build 200 components on day one. Build 20 good ones that solve real problems.
Get buy-in early
Leadership needs to see value fast. Show metrics, show time saved, show money made.
Adoption is a product problem
The best design system in the world is useless if no one uses it. Train people. Answer questions. Make it easy.
Documentation > Perfection
A well-documented mediocre component beats a perfect undocumented one every time.
Design systems enable business outcomes
We didn't sell "50 components." We sold "ship products faster, close bigger deals."

In press

We will be at the forefront of innovation when it comes to booking travel experiences.

Tony Douglas, CEO, Riyadh Air

Riyadh Air will be the world's first digitally native airline.

CNBC

Together, Riyadh Air and FLYR are transforming the passenger experience with shopping cart capabilities for passengers at every touch point.

Yahoo!Finance

Offer & Order: Built Right. Designed to Deliver.

FLYR

Sergey Berezyuk
Sergey Berezyuk

Thanks for reading. Questions? Challenges? Let's talk.

You can reach me via Email or on LinkedIn.

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