Senior AI-Driven Frontend Engineer (React/TS) — Remote

Mototech, Inc.; Ciudad de Mendoza; Remote; ARS 117,092,000 - 202,250,000; Full time

Benefits offered by this job

USD payment

100% remote

Argentine public holidays

Observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project focused on a Digital Wallet for cross-border payments. This contractor role is remote for LATAM, with a frontend-first approach and AI-assisted tooling.

You will turn UX/UI designs into production-ready features, build responsive interfaces, and leverage AI tools to extend the stack, including BFF services and API integrations.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech applications, digital wallets, or payment platforms.
• Solid understanding of UX principles, usability, interaction design, and user-centered development.
• Proven track record of building polished, production-ready user interfaces.
• Experience turning Figma designs into working applications.
• Experience with AI-assisted coding tools such as Cursor, Claude Code, or Copilot.
• Ability to deliver features across frontend and backend boundaries.
• Experience with REST APIs and BFF architectures.
• Strong frontend architecture knowledge and state management.
• Experience in Agile environments and good communication skills.
• Comfort working hands-on with production code.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and requirements into functional, responsive apps.
• Collaborate with product and design to improve user 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 to support app needs.
• Implement API integrations and backend functionality when needed.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and improve development practices.
• Explore AI-assisted engineering to simplify workflows.

Skills

React

JavaScript

TypeScript

Fintech apps

Digital wallets

UX principles

UI production-ready

Figma designs

AI-assisted coding

REST APIs

BFF architectures

Frontend architecture

State management

Agile

Communication

Independent execution

Production code

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project focused on a Digital Wallet for cross-border payments. This contractor role is remote for LATAM, with a frontend-first approach and AI-assisted tooling.

You will turn UX/UI designs into production-ready features, build responsive interfaces, and leverage AI tools to extend the stack, including BFF services and API integrations.