Senior Frontend Engineer – Fintech Wallets & AI

Intuition Machines, Inc.; Ciudad de Mendoza; Remote; ARS 137,974,000 - 206,960,000; Full time

Benefits offered by this job

Contractor paid in USD

100% remote work in international team

Argentine holidays access

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech platform focused on digital wallet experiences. You will build polished, production-ready interfaces and leverage AI tools to speed development across frontend and backend boundaries.

You will work within a remote, international team, partnering with design and product to deliver scalable wallet features and maintain high-quality UI systems.

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, and user-centered development.

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 teams to improve journeys and usability.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to accelerate frontend and full-stack work.
• Build and maintain Backend for Frontend (BFF) services as needed.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and improve development practices.

Skills

React

JavaScript

TypeScript

Fintech

UI/UX

AI tools

REST APIs

Frontend architecture

Tools

Redux

WebRTC

BFF

Node.js

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech platform focused on digital wallet experiences. You will build polished, production-ready interfaces and leverage AI tools to speed development across frontend and backend boundaries.

You will work within a remote, international team, partnering with design and product to deliver scalable wallet features and maintain high-quality UI systems.