Senior Frontend Engineer - Fintech AI Wallets (Remote)

CookUnity; Municipio de Juan José Castelli; Remote; ARS 85,158,000 - 127,737,000; Full time

Benefits offered by this job

Contractor agreement with payment in U

100% remote work

Professional development and learning

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focused on a digital wallet and cross-border payments. You will build polished, production-ready UI with a strong emphasis on UX, scalability, and accessibility.

This is a remote, LATAM-focused contractor role offering USD payments and global collaboration. You will own features end-to-end, collaborate across product and design, and leverage AI-assisted tools to accelerate development while integrating

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech apps, digital wallets, or payment platforms.
• Solid understanding of UX principles and user-centered development.
• Experience turning designs into production-ready UI.
• Experience with REST APIs and backend-for-frontend architectures.

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 user journeys and usability.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to accelerate frontend and full-stack development.
• Build and maintain BFF services that support app requirements.

Skills

React

JavaScript

TypeScript

UX design

REST APIs

Agile

AI-assisted coding

Tools

Electron

Tauri

React Native

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focused on a digital wallet and cross-border payments. You will build polished, production-ready UI with a strong emphasis on UX, scalability, and accessibility.

This is a remote, LATAM-focused contractor role offering USD payments and global collaboration. You will own features end-to-end, collaborate across product and design, and leverage AI-assisted tools to accelerate development while integrating