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Senior Mobile Engineer at Scroll . Location Information: Anywhere in the world. New. Senior Mobile Engineer. Remote. Apply. Scroll is a Layer 2 scaling solution for Ethereum, specifically focusing on zkRollups. Key aspects of Scroll are zkRollup technology, Scalability, Efficiency, Security, and Developer-friendly. Overall, Scroll plays a crucial role in addressing Ethereum's scalability challenges and facilitating the growth of decentralized finance (DeFi) and other blockchain-based applications by providing a scalable and efficient Layer 2 solution. . Position Overview. We’re looking for a Senior / Staff Mobile Engineer (React Native) to lead the development of our on-chain wallet app. You’ll own end-to-end delivery: building high-performance UI, integrating blockchain SDKs, and shipping to iOS App Store / Android Play Store.. This is a dynamic role in a fast-paced blockchain environment, ideal for someone embracing ownership and autonomy to grow with us. You’ll work closely with product manager, designer, backend and blockchain engineers to bring secure and smooth user experiences to life.. Responsibilities. Lead the mobile app architecture (React Native managed by Expo + EAS Build) and feature delivery.. Integrate blockchain SDKs, APIs, and authentication.. Maintain performant, reliable UI on both iOS and Android.. Implement and optimize native modules (Swift/Kotlin) as needed.. Ensure release stability through CI/CD and code reviews.. Requirements. Expertise in React / React Native and JavaScript / TypeScript.. Familiarity with Swift or Kotlin.. Comfortable diving into source code of emerging technologies to understand core principles and apply insights in practice.. Proven track record shipping apps used by large user bases.. Strong sense of design quality and attention to detail.. Fluent in English and Chinese.. (Bonus) Experience with blockchain SDKs, wallets, or Web3 libraries (privy, viem, etc).. What We Offer. Mission-Driven, Collaborative, and Innovative Environment:. Join a team united by a shared vision, working with like-minded individuals and cutting-edge technology to advance Ethereum and blockchain innovation.. Remote Flexibility:. Enjoy a fully autonomous, ownership-driven job nature with the freedom to work from anywhere. You can reimburse up to $200 USD monthly co-working space stipend. To support your global lifestyle, you’ll be hired as an independent contractor and can choose to be paid in your preferred fiat currency or USDC, based on agreed-upon options.. Scroll is proud to be an equal opportunity workplace. We are committed to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you have a disability or special need, please let us know and we'll do our best to accommodate.. . Create a Job Alert. Interested in building your career at Scroll.io? Get future opportunities sent straight to your email.. Create alert. Apply for this job. *. indicates a required field. Autofill with MyGreenhouse. First Name. *. Last Name. *. Preferred First Name. Email. *. Phone. Country. Phone. Resume/CV. Attach. Attach. Dropbox. Google Drive. Enter manually. Enter manually. Accepted file types: pdf, doc, docx, txt, rtf. What makes a good mobile app from both a product and technical perspective?Please describe one or two trade-offs you think are critical for delivering a great user experience. (up to 50 words). *. What’s the most technically challenging and fulfilling feature you’ve built in a mobile app? Why was it hard, and why did it matter to you? (up to 50 words). *. [native modules] Can you share a feature you built that required writing or extending native modules in Swift or Kotlin? (up to 50 words). *. Are you bilingual in English and Chinese?. *. Select.... What country and timezone (in terms of UTC) are you located?. *. What's your expected annual salary range in USD?. *. When can you start working (or what's your notice period)?. *. [Optional] Why are you interested in this position?. Submit application. Powered by.