Senior Frontend Engineer - AI-Driven Fintech Wallet

BetWarrior; Ciudad de Mendoza; Remote; ARS 139,086,000 - 185,448,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote work

Argentine public holidays access

Observability modernization project

Professional development opportunities

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech initiative focused on a digital wallet. You will build polished, production-grade interfaces, turn UX designs into features, and collaborate across product and design to optimize user journeys.

This is a remote LATAM contractor role. You will leverage AI-assisted development and work with BFF services, REST APIs, and cross-functional teams to deliver scalable wallet features.

Qualifications

• Strong hands-on with React, JavaScript, and TypeScript.
• Experience building fintech applications or digital wallets is a plus.
• Ability to translate UX/UI designs into production-ready interfaces.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs into functional, responsive applications.
• Collaborate with product/design to improve user journeys and usability.
• Own features end-to-end from requirements to delivery.
• Use AI-assisted tools to speed frontend and full-stack development.
• Build and maintain BFF services and API integrations when needed.

Skills

React

JavaScript

TypeScript

Fintech experience

UI/UX design

Tools

Electron

Node.js

Design Systems

REST APIs

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech initiative focused on a digital wallet. You will build polished, production-grade interfaces, turn UX designs into features, and collaborate across product and design to optimize user journeys.

This is a remote LATAM contractor role. You will leverage AI-assisted development and work with BFF services, REST APIs, and cross-functional teams to deliver scalable wallet features.