Senior Full Stack Engineer / AI-Powered Fintech

📍 United States

📅 Posted 2026-07-18 · via Himalayas

🏷 Fullstack-Development,Mobile-Development,Fintech,React-Native-Development,Senior-Full-Stack-AI-Engineer,Senior-Full-Stack-AI-Developer,Senior-Full-Stack-Engineer-(JavaScript-Python),Senior-Full-Stack-Engineer-(React-Node.Js),AI-Full-Stack-Engineer,Full-Stack-Engineer

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What You’ll Do:

- Build production-ready, pixel-perfect UI in React Native + Expo using Tamagui and Style Dictionary

- Own and deliver core neobank features : wallets, payments, transaction histories, onboarding, notifications

- Develop and maintain scalable serverless APIs with AWS Lambda, API Gateway, DynamoDB, Kinesis, EventBridge

- Integrate stablecoin and blockchain payment flows with a focus on security and compliance

- Implement real-time features using WebSockets and SSE, including AI-driven chat and streaming UX

- Optimize for performance (Hermes, Reanimated, FlashList) and observability (Sentry, Better Stack)

- Collaborate with design teams using Figma → tokens → Tamagui workflows

- Actively leverage AI development tools (Claude, Cursor, MCP integrations) to accelerate coding, testing, and prototyping

- Contribute to our AI-assisted engineering culture , exploring and integrating new tools to increase velocity

- Mentor teammates and help define engineering standards for AI + fintech development

🎯 What We’re Looking For:

-
10+ years of engineering experience , including 5+ years in mobile fintech apps

- Proven ability to deliver secure, complex financial applications with beautiful UI

- Mastery of React Native + Expo and a strong eye for pixel-perfect UX

- Full stack proficiency in TypeScript , including serverless AWS backends

- Experience with secure authentication (Cognito, JWT, device secrets) and financial-grade data handling

- Familiarity with stablecoins, blockchain transactions, or payments APIs

- Strong understanding of real-time networking (WebSockets, SSE)

- Comfortable using AI tooling in daily development — ideally already working with Claude, Cursor, or AI-assisted IDEs

- Passionate about pushing the frontier of AI-driven software development

🌟 Why Join Us:

- Build a world-class whitelabel neobank with AI at its core

- Work in a modern TypeScript stack across frontend and backend

- Help shape the future of AI-assisted engineering — we’re not just using AI, we’re pioneering how it’s done

- Solve hard problems in fintech UX, payments, real-time systems, and blockchain

- Join a remote-first, senior team where ownership, polish, and innovation come first

Originally posted on Himalayas

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