Remote Senior Frontend/UX Engineer — AI-Driven Fintech

Rootstrap; La Pampa; Remote; ARS 102,941,000 - 171,568,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote work

Argentine holidays access

Observability modernization project

Professional development & referrals

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fintech product team focused on a cross‑border digital wallet. This frontend‑first role emphasizes translating UX/UI designs into production features and using AI‑assisted tools to extend capabilities across the stack, including BFF services and API integrations.

You will work remotely from LATAM, with independent contractor engagement and USD payment.

Qualifications

• Strong hands‑on experience with React, JavaScript, and TypeScript.
• Experience building fintech applications, digital wallets, or payment platforms.
• Solid understanding of UX principles, usability, interaction design, and user‑centered development.
• A proven track record of building polished, production‑ready user interfaces.
• Experience turning Figma designs or equivalent UX/UI specifications into working applications.
• Practical experience with AI‑assisted coding tools such as Cursor, Claude Code, GitHub Copilot, or similar.
• Ability to deliver complete features across frontend and backend boundaries.
• Experience with REST APIs, third‑party integrations, and Backend for Frontend (BFF) architectures.
• Strong understanding of frontend architecture, reusable components, and state management.
• Experience working in Agile product development environments.
• Strong communication, problem‑solving, and independent execution skills.
• Comfort working hands‑on with production code.

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

Fintech

UX principles

Figma designs

Agile

REST APIs

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fintech product team focused on a cross‑border digital wallet. This frontend‑first role emphasizes translating UX/UI designs into production features and using AI‑assisted tools to extend capabilities across the stack, including BFF services and API integrations.

You will work remotely from LATAM, with independent contractor engagement and USD payment.