Senior Frontend Engineer - AI-Powered Fintech UI (Remote)

BetWarrior; Rosario; Remote; ARS 139,086,000 - 200,903,000; Full time

Benefits offered by this job

Contractor USD payments

100% remote

Argentine public holidays

Job summary

Tether is seeking a Senior Frontend / UX Engineer to join a fast-growing US fintech, building a Digital Wallet and P2P features. This frontend-first role focuses on turning requirements into polished UI using React, TypeScript, and AI-assisted tooling.

You will own features end-to-end, collaborate with product and design, and help modernize the Pear/BFF stack. Remote LATAM-friendly, contractor role with USD payments and flexible hours.

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.

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 apps

UI/UX design

REST APIs

AI-assisted coding

BFF concepts

Agile

Tools

Electron

Tauri

Node.js

Design systems

Job description

Tether is seeking a Senior Frontend / UX Engineer to join a fast-growing US fintech, building a Digital Wallet and P2P features. This frontend-first role focuses on turning requirements into polished UI using React, TypeScript, and AI-assisted tooling.

You will own features end-to-end, collaborate with product and design, and help modernize the Pear/BFF stack. Remote LATAM-friendly, contractor role with USD payments and flexible hours.