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

Encora Inc.; Municipio de Rincón de los Sauces; Remote; ARS 184,482,000 - 245,976,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote work

Argentine public holidays access

Observability modernization project

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing US fintech project focused on a cross-border digital wallet. This remote LATAM contractor role emphasizes delivering polished UI with React/TypeScript and AI-assisted tooling.

You will own features end-to-end, collaborate with design and product teams, and apply UX principles to create accessible, scalable wallet experiences while integrating APIs and BFF services as needed.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech apps, digital wallets, or payment platforms.
• Understanding of UX, usability, and user-centered development.
• Proven production-ready UI experience with Figma-derived specs.
• Experience with AI-assisted coding tools and aFrontend/Backend workflow.
• Ability to deliver features across frontend and backend boundaries.
• Experience with REST APIs and BFF architectures.
• Frontend architecture, reusable components, and state management.
• Agile product development experience and strong communication.

Responsibilities

• Design, develop, and maintain high-quality UIs for a Digital Wallet.
• Translate UX designs and product requirements into functional apps.
• Collaborate with product and design to improve journeys and usability.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to speed frontend and full-stack work.
• Build and maintain BFF services supporting app needs.
• Implement API integrations and backend functionality when needed.
• Ensure performance, accessibility, and maintainability.
• Participate in code reviews and improve development practices.
• Explore AI-assisted engineering to simplify workflows.

Skills

React

JavaScript

TypeScript

Fintech experience

UX principles

Figma to UI

AI-assisted coding

REST APIs

BFF architectures

Agile

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing US fintech project focused on a cross-border digital wallet. This remote LATAM contractor role emphasizes delivering polished UI with React/TypeScript and AI-assisted tooling.

You will own features end-to-end, collaborate with design and product teams, and apply UX principles to create accessible, scalable wallet experiences while integrating APIs and BFF services as needed.