Remote Senior AI-Driven Full-Stack Engineer – Fintech Wallet

Crossing Hurdles; Ciudad de Mendoza; Remote; ARS 120,727,000 - 189,714,000; Full time

Benefits offered by this job

USD payment

100% remote

Argentine holidays

Observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a US fintech project focused on a Digital Wallet and cross-border payments. This frontend-first role emphasizes excellent UX, accessibility, and scalable UI development in a remote LATAM setting.

You will turn designs into production-ready features, leverage AI-assisted tools to speed up development, and own end-to-end frontend work while collaborating with product, design and backend teams in an Agile environment.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech applications or digital wallets.
• Solid UX principles, usability, and user-centered development.
• Proven track record of production-ready interfaces.
• Ability to translate Figma designs into working apps.
• Experience with AI-assisted coding tools (Cursor, Claude Code, GitHub Copilot).
• Ability to deliver features across frontend and backend boundaries.
• Experience with REST APIs and BFF architectures.
• Strong frontend architecture, reusable components, and state management.
• Experience in Agile environments and strong communication.

Responsibilities

• 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 to improve journeys and usability.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to speed up frontend and full-stack work.
• Build and maintain BFF services supporting app requirements.
• Implement API integrations and backend functionality when needed.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and improve development practices.

Skills

React

JavaScript

TypeScript

Fintech apps

UX principles

Production UI

Figma translation

AI coding tools

REST APIs

BFF architecture

Frontend architecture

Agile

Communication

Production code

Tools

Cursor

Claude Code

GitHub Copilot

Node.js

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a US fintech project focused on a Digital Wallet and cross-border payments. This frontend-first role emphasizes excellent UX, accessibility, and scalable UI development in a remote LATAM setting.

You will turn designs into production-ready features, leverage AI-assisted tools to speed up development, and own end-to-end frontend work while collaborating with product, design and backend teams in an Agile environment.