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

Encora10; Ciudad de Mendoza; Remote; ARS 155,220,000 - 224,207,000; Full time

Benefits offered by this job

Payment in USD

100% remote

Argentine public holidays

Observability modernization

Learning platforms

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company, building a Digital Wallet and AI-assisted features.

You will own frontend UI, translate designs into scalable interfaces, and work across frontend and backend boundaries using React, TypeScript, and REST. This contractor role is fully remote in LATAM, with emphasis on performance, accessibility, and collaboration in an Agile environment.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech apps, digital wallets, or payment platforms.
• Solid UX principles understanding and user-centered development.
• Track record of production-ready UI development.
• Experience translating designs (Figma) into working apps.
• Experience with AI-assisted coding tools.
• Ability to deliver features across frontend and backend.
• Experience with REST APIs and BFF architectures.
• Knowledge of frontend architecture and state management.
• Agile development experience.
• Strong communication and problem-solving.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and product requirements into functional, intuitive, and responsive applications.
• Collaborate with product and design teams to improve user journeys, interactions, and overall usability.
• Own features end to end, from initial requirements through implementation and delivery.
• Use AI‑powered development tools to speed up frontend and full‑stack development.
• Build and maintain Backend for Frontend (BFF) services that support application requirements.
• Implement API integrations and supporting backend functionality when needed.
• Ensure consistency, performance, accessibility, and maintainability across the application.
• Take part in code reviews and help improve development practices.
• Find ways to simplify development workflows through AI‑assisted engineering.

Skills

React

JavaScript

TypeScript

UX principles

Frontend architecture

REST APIs

Agile

Communication

Tools

Electron

WebRTC

Node.js

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company, building a Digital Wallet and AI-assisted features.

You will own frontend UI, translate designs into scalable interfaces, and work across frontend and backend boundaries using React, TypeScript, and REST. This contractor role is fully remote in LATAM, with emphasis on performance, accessibility, and collaboration in an Agile environment.