Staff Mobile Engineer (Seattle)

Senpi is the first AI Wallet - a new category of intelligent wallets that think, trade, and protect alongside users. In just four months since launching on Base, Senpi has processed 285K+ AI auto-trades , achieved a b (~3 higher than typical exchanges), and welcomed 200+ traders to the 1000% Club.

Backed with $4M in Seed capital by top investors including Lemniscap, Coinbase Ventures, and SuperLayer, were building on a track record of OG Ethereum innovation from creating one of the first smart wallets approved by Apple to pioneering AI blockchain search.

With millions in trading volume and 75%+ retention already, were now rolling out iOS and Android apps, expanding multi-chain, and pushing deeper into perps, futures, and yield strategies. At Senpi, you wont just be joining another startup youll be helping reinvent the wallet itself into the intelligent agent of onchain finance.

Were looking for a Staff Mobile Engineer to own and scale Senpis iOS and Android apps, taking them from 1100 and shaping the most intuitive crypto trading experience on mobile.

What Youll Bring

• 7+ years of professional experience , with expert-level knowledge of JavaScript and React Native , ideally in a fast-paced startup setting.
• Proven track record building, shipping, and maintaining consumer-facing apps end-to-end on the Apple App Store and Google Play .
• Demonstrated ability to take mobile apps from concept to launch , owning everything from architecture to deployment.
• Hands-on experience with Expo for building, testing, and managing React Native apps at scale.
• Deep UI / UX development expertise, with a strong eye for design and creating user-first, delightful experiences.
• Strong focus on mobile performance optimization , delivering smooth, fast, and reliable experiences under heavy real-time trading workloads.
• Familiarity with mobile protocols and services : Push Notifications, HTTPS, REST, WebSockets , etc.
• Strong ability to write reusable, efficient, and maintainable code aligned with industry best practices.
• Familiarity with CI / CD pipelines to streamline development and deployment.
• Must have Production experience with native iOS or Android development .
• Crypto-native experience , ideally having built or contributed to wallets, exchanges, or DeFi apps.
• Excitement to integrate AI / ML intelligence into the mobile experience from LLMs and RAG-powered insights to autonomous trading flows and push the boundaries of what a mobile wallet can do.

Benefits & Perks