> Markdown version of [/jobs/ext/3046559-mobile-engineer-react-native](https://www.wearedevelopers.com/jobs/ext/3046559-mobile-engineer-react-native). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mobile Engineer (React Native) - **Company:** American IT Systems - **Location:** Germany (Remote available) - **Experience:** Expert - **Salary:** €225,000.0 - **Contract:** Permanent contract - **Skills:** Android Software Development, IOS Applications, App Store (IOS), Mobile Application Development, Design of User Interfaces, Mobile Application Software, TypeScript, Expo.io, Kotlin, Low Latency, Sentry, Web3.js, React Native - **Published:** September 24, 2026 - **Apply:** https://www.adzuna.de/details/5894231250 ## About the Role 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. ## Description * 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. ## Related Videos - [There's an app for that - on the role of cross platform development in the app development ecosystem](https://www.wearedevelopers.com/videos/278-there-s-an-app-for-that-on-the-role-of-cross-platform-development-in-the-app-development-ecosystem) - [From Doubt to Confidence: How Sentry Uses Verdaccio to Bulletproof SDK Releases](https://www.wearedevelopers.com/videos/739-from-doubt-to-confidence-how-sentry-uses-verdaccio-to-bulletproof-sdk-releases) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Hands-on React Native: From Zero to Hero](https://www.wearedevelopers.com/videos/277-hands-on-react-native-from-zero-to-hero) - [Debugging in the Dark](https://www.wearedevelopers.com/videos/1658-debugging-in-the-dark) - [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025)