Senior Frontend/UX Engineer — AI-Driven Fintech Wallet (Remote)

CookUnity; Ciudad de Mendoza; A distancia; ARS 85.328.000 - 191.988.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Contractor rate in USD

100% remote work

Argentine holidays

Descripción de la vacante

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company that builds a Digital Wallet and transforms cross-border payments.

You will turn product requirements and UX/UI designs into intuitive, scalable features, delivering production-ready frontend code and contributing across the stack. This frontend-first role leverages AI-assisted development tools to accelerate work and requires strong React/JS/TS skills, experience with fintech apps, and a solid eye for

Formación

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech applications and digital wallets.
• Solid understanding of UX principles and user-centered development.
• Proven track record of production-ready UI.
• Ability to translate Figma designs into working applications.
• Experience with AI-assisted coding tools.
• Ability to deliver features end-to-end across frontend/backend boundaries.
• Experience with REST APIs and third-party integrations.
• Experience working in Agile environments.
• Strong communication and independent execution skills.

Responsabilidades

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs into functional, responsive applications.
• Collaborate with product and design teams to improve journeys and usability.
• Own features end-to-end from requirements through delivery.
• Use AI-powered tools to speed up frontend and full-stack development.
• Build and maintain Backend for Frontend (BFF) services as needed.
• Implement API integrations and supporting backend functionality.
• Ensure performance, accessibility, and maintainability across the app.
• Contribute to code reviews and improve development practices.
• Identify opportunities to simplify workflows via AI-assisted engineering.

Conocimientos

React

JavaScript

TypeScript

Fintech apps

UX principles

UI development

AI-assisted tools

REST APIs

Agile

Communication

Herramientas

Cursor

Claude Code

GitHub Copilot

Descripción del empleo

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company that builds a Digital Wallet and transforms cross-border payments.

You will turn product requirements and UX/UI designs into intuitive, scalable features, delivering production-ready frontend code and contributing across the stack. This frontend-first role leverages AI-assisted development tools to accelerate work and requires strong React/JS/TS skills, experience with fintech apps, and a solid eye for