Job description
About Arcade
We're the team behind PRJX, the #1 DEX on HyperEVM, which generated $5.4M revenue in year one with 2 full time people.
Now, we're pursuing the biggest opportunity in crypto.
The foundation of which is creating the best place to trade crypto (spot + perps) on your phone.
On top of that, we’re building a completely original social product with several novel mechanisms.
We’ll reveal more to promising candidates, but whatever you think it may be, think bigger.
The Role
Staff+ level · $180,000+ · significant equity
Stack. Expo ~54 · React Native · TypeScript · Reanimated · Privy · viem · Solana · Hyperliquid SDK · cross-chain routing and bridging · PostHog · Sentry. Skia, Swift, and Kotlin are a plus.
Details. Remote · NA/EU timezone ideal · Full-time · Primarily async
You're the first and only engineer in your domain. Your job is to take an original product vision and turn it into a robust system, holding the entire architecture and smallest details at once.
You will…
- Build the best mobile trading app in the world.
- Own the entire user experience.
- Keep the interface truthful under live market data.
- Hold 60fps on mid-range Android under sustained load.
- Automate weekly iOS and Android releases.
You have…
- Independently designed, implemented, and scaled a consumer mobile app.
- Extended React Native itself across new architecture, Hermes, JSI, and custom native modules.
- Built gesture-driven motion under concurrent state change.
- Delivered production trading interfaces spanning order entry, TP/SL, TWAP, perps, funding, and leverage.
- Implemented on-device key custody for embedded wallets, EIP-7702, SIWE, and cross-chain swaps.
Nice to have
- Experience with Skia for graphics rendering.
- Familiarity with cross-chain routing and bridging.
Responsibilities
- Build the best mobile trading app in the world.
- Own the entire user experience.
- Keep the interface truthful under live market data.
- Hold 60fps on mid-range Android under sustained load.
- Automate weekly iOS and Android releases.
Benefits
- Significant equity in the company.
Focus areas
- Crypto
- Fintech
Required skills
- React Native(must have)
Independently designed, implemented, and scaled a consumer mobile app using React Native.
- JavaScript & TypeScript(must have)
Utilized TypeScript in the development of mobile applications.
- Mobile(must have)
Built gesture-driven motion and delivered production trading interfaces for mobile applications.
- Swift(nice to have)
Experience with Swift for iOS development is a plus.
- Kotlin(nice to have)
Experience with Kotlin for Android development is a plus.