Senior Frontend UX Engineer — AI-Driven Fintech (Remote)

Think Us - It Staff Augmentation; La Pampa; Remote; ARS 185,448,000 - 231,811,000; Full time

Benefits offered by this job

USD contractor payments

100% remote work in international team

Argentine public holidays access

Observability modernization project

Professional development & referralプ

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a U.S. fintech project focused on a cross-border Digital Wallet. Remote LATAM-based contractor with full-time commitment. You’ll craft fintech-grade UI, apply AI-assisted tooling, and build end-to-end features across frontend and BFF services.

You will collaborate with product/design teams, translate Figma/UI specs into production-ready components, and optimize usability, performance, and accessibility for a global user base.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech apps, digital wallets, or payment platforms.
• Solid UX/interaction design understanding and production-ready UI delivery.
• Proven ability to turn designs (Figma or specs) into working apps.
• Experience with AI-assisted coding tools and end-to-end feature delivery.
• Familiar with REST APIs and BFF architectures.
• Knowledge of frontend architecture, reusable components, and state management.
• Experience in Agile product development and independent work.
• Excellent communication, problem-solving, and execution skills.

Responsibilities

• Design, develop, and maintain high-quality web UI for a Digital Wallet.
• Translate UX/UI requirements into responsive, scalable frontend features.
• Collaborate with product and design to improve user journeys.
• Own features end-to-end from requirements to delivery.
• Leverage AI tools to speed frontend and full-stack work.
• Build/maintain BFF services and API integrations when needed.
• Ensure performance, accessibility, and maintainability.
• Participate in code reviews and advocate best practices.
• Explore AI-driven workflows to simplify development.
• Push for security and robust frontend design in finance apps.

Skills

React

JavaScript

TypeScript

UX principles

Figma to code

REST APIs

BFF architectures

Agile

Independent execution

Frontend architecture

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a U.S. fintech project focused on a cross-border Digital Wallet. Remote LATAM-based contractor with full-time commitment. You’ll craft fintech-grade UI, apply AI-assisted tooling, and build end-to-end features across frontend and BFF services.

You will collaborate with product/design teams, translate Figma/UI specs into production-ready components, and optimize usability, performance, and accessibility for a global user base.