Senior Frontend & UX Engineer for Fintech Wallet - Remote

Internetwork Expert, Inc.; Tandil; Remote; ARS 85,158,000 - 149,026,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote work

Argentine public holidays access

Observability modernization for core平台

Professional development and referral

International client exposure

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing LATAM fintech platform. You will build a Digital Wallet UI, translate designs into production-ready features, and collaborate across product and design teams.

The role emphasizes AI-assisted coding, end-to-end ownership, and strong frontend architecture. You’ll work remotely in a globally distributed team, with a contractor agreement paying in USD.

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 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 requirements into functional, intuitive 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 apps

UX principles

Production-ready UI

Figma to UI

AI-assisted coding tools

Frontend + Backend boundaries

REST APIs & BFF

Agile

Communication & independence

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing LATAM fintech platform. You will build a Digital Wallet UI, translate designs into production-ready features, and collaborate across product and design teams.

The role emphasizes AI-assisted coding, end-to-end ownership, and strong frontend architecture. You’ll work remotely in a globally distributed team, with a contractor agreement paying in USD.