Remote Senior Frontend & UX Engineer — Fintech AI

Bluelight Consulting, Llc; Rosario; Remote; ARS 106,447,000 - 212,895,000; Full time

Benefits offered by this job

Contractor agreement with payment in ~

100% remote work

Argentine public holidays

Observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company simplifying cross-border payments and managing its Digital Wallet. This frontend-first role emphasizes turning requirements into intuitive experiences and leveraging AI-powered tools for efficient development.

You will build production-ready interfaces, collaborate with design teams, and own features end-to-end, including BFF services and API integrations, in a remote, contractor-enabled setting.

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, and interaction design.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs into functional applications and improve user journeys.
• Collaborate with product and design teams to enhance usability and accessibility.
• Own features end to end from requirements through delivery.
• Use AI-powered tools to speed frontend and full-stack development.
• Build and maintain Backend for Frontend (BFF) services supporting app requirements.
• Implement API integrations and supportive backend functionality when needed.

Skills

React

JavaScript

TypeScript

REST APIs

Agile

UX principles

AI-assisted coding

Education

Bachelor’s degree in CS or related field

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company simplifying cross-border payments and managing its Digital Wallet. This frontend-first role emphasizes turning requirements into intuitive experiences and leveraging AI-powered tools for efficient development.

You will build production-ready interfaces, collaborate with design teams, and own features end-to-end, including BFF services and API integrations, in a remote, contractor-enabled setting.