Senior Full Stack Engineer
New
United StatesFull-TimeSenior
Salary not disclosed
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Job Details
- Experience
- 10+ years of engineering experience, including 5+ years in mobile fintech apps
- Required Skills
- BlockchainDynamoDBReact NativeTypeScriptServerlessAWS Lambda
Requirements
- 10+ years of engineering experience
- 5+ years in mobile fintech apps
- Mastery of React Native + Expo
- Full stack proficiency in TypeScript
- Experience with serverless AWS backends
- Experience with secure authentication (Cognito, JWT, device secrets)
- Experience with 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
Responsibilities
- 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 workflows
- Actively leverage AI development tools (Claude, Cursor, MCP integrations)
- Contribute to our AI-assisted engineering culture
- Mentor teammates and help define engineering standards
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