EER Poland
Senior Full Stack Engineer / AI-Powered Fintech
Remote Fullstack Development role with clear candidate location fit.
PostedJul 18, 2026
Eligible countries1 accepted country
Seniority signalSenior
Work settingRemote
Accepted candidate locations
USA
Role overview
Senior Full Stack Engineer / AI-Powered Fintech
Requirements and responsibilities
Readable role content extracted into sections for faster review.
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
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