Senior Frontend & UX Engineer - AI-Driven Fintech, Remote

Cookunity; La Pampa; Remote; ARS 102,941,000 - 154,411,000; Full time

Benefits offered by this job

Contractor agreement with payment in U

100% remote work

Argentine public holidays

Observability modernization project

Professional development and training

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project focused on cross-border and wallet features. You will build polished, production-ready interfaces using React/TypeScript, collaborate with design and product teams, and leverage AI-assisted tools to accelerate development.

You will own key wallet features end to end, work in a remote LATAM setting, and help modernize the frontend stack with BFF services and real-time integrations.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech-like applications or digital wallets is a plus.
• Ability to translate UX/UI designs into production-ready interfaces.
• Experience with AI-assisted coding tools and BFF/REST APIs.
• Proven track record delivering polished, production-ready UI.

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.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to speed frontend and full-stack development.
• Build and maintain BFF services as needed.
• Ensure performance, accessibility, and maintainability.

Skills

React

TypeScript

JavaScript

UX principles

Figma to code

AI-assisted coding tools

REST APIs

Frontend architecture

Agile

Tools

Electron

TAURI

WebRTC

Node.js

Design systems

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project focused on cross-border and wallet features. You will build polished, production-ready interfaces using React/TypeScript, collaborate with design and product teams, and leverage AI-assisted tools to accelerate development.

You will own key wallet features end to end, work in a remote LATAM setting, and help modernize the frontend stack with BFF services and real-time integrations.