Remote Senior Frontend/UX Engineer – Fintech Wallet & AI

Humand Technologies, Inc.; Rosario; Remote; ARS 85,158,000 - 170,316,000; Full time

Benefits offered by this job

Contractor agreement with payment in $

100% remote work in international team

Argentine holidays access

Professional development & referrals

Job summary

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech client, building its Digital Wallet and AI-enhanced features.

You will craft polished UI, turn designs into production-ready code, and collaborate with product and design teams in a global, remote setting. You will own frontend features end-to-end, work across React/JS/TS, and leverage AI-assisted tools while coordinating with backend for frontend services.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech applications or digital wallets.
• Solid understanding of UX principles and accessible design.
• Production-ready UI experience and code quality.
• Ability to turn designs into working applications.

Responsibilities

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

Skills

React

JavaScript

TypeScript

UI/UX

Agile

Tools

Electron

TAURI

REST APIs

BFF

Job description

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech client, building its Digital Wallet and AI-enhanced features.

You will craft polished UI, turn designs into production-ready code, and collaborate with product and design teams in a global, remote setting. You will own frontend features end-to-end, work across React/JS/TS, and leverage AI-assisted tools while coordinating with backend for frontend services.