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

EPAM Systems Inc; Buenos Aires; Remote; ARS 155,220,000 - 258,701,000; Full time

Benefits offered by this job

USD payments

100% remote

Argentine holidays

Platform observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join as an independent contractor, focused on a fintech Digital Wallet. You’ll build and extend intuitive, production-ready wallet features with a frontend-first approach, while leveraging AI tools to accelerate development across the stack.

Remote, LATAM-focused with US/LatAm clients, you’ll balance UX quality, technical excellence, and delivery speed. You’ll work with design and product teams to enhance user journeys, implement BFF services

Qualifications

• Proficient in React, JavaScript and TypeScript.
• Experience in fintech apps, digital wallets, or payments platforms.
• Strong UX sense and user-centered design.
• Proven track record of production-ready UIs.
• Ability to translate Figma designs into functional apps.
• Experience with AI-assisted coding tools like Cursor, Claude Code or Copilot.
• Ability to deliver features across frontend and backend boundaries.
• Experience with REST APIs and BFF architectures.
• Knowledge of frontend architecture, components and state management.
• Experience working in Agile product teams.

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.
• Leverage AI tools to accelerate frontend and full-stack work.
• Build and maintain Backend for Frontend (BFF) services.
• Implement API integrations and backend tasks when needed.
• Ensure performance, accessibility and maintainability across the app.
• Participate in code reviews and improve development practices.
• Explore AI-assisted tooling to streamline development workflows.

Skills

React

JavaScript

TypeScript

UX principles

Figma to UI

AI-assisted coding

REST APIs

Agile

Frontend architecture

Independent execution

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join as an independent contractor, focused on a fintech Digital Wallet. You’ll build and extend intuitive, production-ready wallet features with a frontend-first approach, while leveraging AI tools to accelerate development across the stack.

Remote, LATAM-focused with US/LatAm clients, you’ll balance UX quality, technical excellence, and delivery speed. You’ll work with design and product teams to enhance user journeys, implement BFF services