Mobile Engineer (React Native)

• Architect the entire React Native mobile app from zero, making all foundational technical decisions
• Build a best-in-class trading experience (spot + perps) optimized for speed and low latency across all interactions
• Ship the app from 0 to App Store on a rapid timeline, working closely with the founder and a dedicated UI/UX designer
• Ensure the app scales to handle 25 50K+ daily active users and $100M+ daily volume with no performance degradation
• Own production reliability end-to-end - fix critical bugs the hour they land and automate release pipelines

Tech stack

React Native, TypeScript, Expo, Reanimated, Skia, Swift, Kotlin, Privy, viem, Solana, Hyperliquid SDK, PostHog, Sentry.

Must have a minimum of six years of experience, ideally in a startup environment or early with prominent financial products.

Strong React Native skills are critical; experience with Swift and Kotlin is a bonus., Prefer candidates with early startup experience who have built significant features from the ground up.

Looking for “winners” who are driven and have achieved success in past endeavors., Looking for an elite React Native engineer to architect and implement the app from the ground up.

Experience with trading-related products and high output in React Native is essential.

Candidate Requirements

Must have a minimum of six years of experience, ideally in a startup environment or early with prominent financial products.

Strong React Native skills are critical; experience with Swift and Kotlin is a bonus.

**Dealbreaker**

Work experience

Experience building 0- to- 1 features at prominent brokerage, wallet, or mobile crypto trading apps

Hard skills

Experience building and architecting React Native applications from scratch (0 to 1) using TypeScript

Miscellaneous

Track record of very high output.

Baseline:

Seniority

6 - 15 years of experience mobile engineering

Work experience

Experience independently designing, building, and scaling a consumer mobile app to 1M+ users

Experience working in a scrappy startup environment or as a founder

Hard skills

Experience with mobile and web3 technologies (Expo, Privy, viem, Solana, Hyperliquid SDK, cross- chain routing, PostHog, Sentry)

Soft skills

Strong drive and winning attitude.

Nice-to-have

Hard skills

Experience with native iOS or Android development (Swift, Kotlin)

Miscellaneous

Ability to work in NA/EU time zones (Eastern Time Zone preferred).

Traits to avoid:

Only narrow- scope optimization experience at Robinhood or big tech., We are looking for a Founding Mobile Engineer with 6+ years of experience to architect and build a high-performance crypto trading app from the ground up. You’ll be the first and only front-end engineer, owning everything the user touches - from cold start to trade confirmation - at a self-funded, fast-moving team that scaled their last product to $5.4M revenue in year one with just two people.

Salary range is $200K to $300K, with the possibility of higher offers for exceptional candidates.

The role is fully remote with flexibility on time zones; Visa sponsorship is considered for outstanding applicants.

Timeline and Urgency

The company is prioritizing rapid scaling and aims to fill the role quickly to avoid heavy refactors post-launch.

Interview process includes a call with the founder, a system design interview, and a coding session or take-home assessment.

Pain Points

Difficulty finding highly skilled React Native developers in the crypto space.

Need for a strong engineer to ensure the app is architected well from the start and can handle high volumes.

Arcade is focused on building a highly performant mobile app for trading crypto, targeting high-volume traders.

The company is self-funded with plans to be highly profitable from launch, aiming to scale quickly.

The founding team has extensive experience in crypto, having previously scaled a decentralized exchange to significant market share and revenue.