Senior Frontend/UX Engineer - AI Fintech (Remote LATAM)

Hiberus; Municipio de Rincón de los Sauces; Remote; ARS 139,086,000 - 200,903,000; Full time

Benefits offered by this job

Contractor USD payment

100% remote in an international setup

Argentine public holidays access

Observability modernization project

Professional development & referral}

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join as an AI-driven full-stack contractor focused on a Digital Wallet project for cross-border payments. Remote in LATAM with strong React/TypeScript skills and fintech experience.

You will build production-ready wallet features, leverage AI tooling, and contribute to BFF services and API integrations. You will work with product and design teams to enhance user journeys, ensure accessibility and performance, and own features end-to-end in an

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech apps, digital wallets, or payment platforms.
• Experience turning designs into working apps.
• Practical experience with AI-assisted coding tools.

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 that support app requirements.
• Implement API integrations and backend functionality when needed.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and improve development practices.
• Simplify development workflows with AI-assisted engineering.

Skills

React

JavaScript

TypeScript

Fintech apps

UX principles

Figma designs

AI-assisted coding

REST APIs

Agile

Communication

End-to-end features

Frontend architecture

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join as an AI-driven full-stack contractor focused on a Digital Wallet project for cross-border payments. Remote in LATAM with strong React/TypeScript skills and fintech experience.

You will build production-ready wallet features, leverage AI tooling, and contribute to BFF services and API integrations. You will work with product and design teams to enhance user journeys, ensure accessibility and performance, and own features end-to-end in an