Danila ErmolenkoFounding designer in Lisbon

Sai

A perpetual futures exchange on Nibiru. I designed the trading terminal and five more surfaces, for web and mobile.

Year
2025
Client
Sai, with Airfoil
Role
Product design, design system
Focus
DeFi, Trading, Web and mobile

Visit sai.fun

Sai trading terminal on a laptop with a candlestick chart, order panel and open positions
Product surfaces
6
One design system
Web + mobile
Max leverage
100x

The challenge

A trading terminal shows a lot at once: price, leverage, margin, funding, liquidation price and open positions. It still had to let a first-time trader place an order with confidence.

Sai liquidity vault on a laptop with a performance chart and a deposit panel
Vault: provide liquidity and track performance.

What I did

I designed the trading terminal, Earn, Vault, Portfolio, Leaderboard and wallet connection. One dark design system covers all of them, on desktop and on mobile.

Every state is designed, from empty and loading to filled orders, errors and liquidations.

  • Deposit, adjust a position and swap on mobile.

  • Portfolio and referrals.

Sai Earn page on a tablet with yield products, rates and deposits
Earn: yield products in one table.

The result

Sai launched in early 2026 and keeps adding new markets.

Next project

DeCharge2025