Senior React/TypeScript Frontend Engineer - Remote Fintech

Hiberus; Rosario; Remote; ARS 85,328,000 - 191,988,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote

Argentine public holidays

Observability modernization

Professional development

Referral programs

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer (Contractor) to join a fintech-focused team in LATAM. You’ll build and enhance a Digital Wallet UI using React/JS/TS, delivering polished interfaces and scalable patterns while leveraging AI-assisted tooling.

You’ll work with product and design to turn requirements into intuitive experiences, own features end-to-end, and collaborate across frontend and backend boundaries in a fully remote environment.

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.
• 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/UI

AI-assisted coding

REST APIs

BFF

Agile

Communication

Tools

Node.js

GitHub Copilot

Design systems

WebRTC

Job description

Darwoft is seeking a Senior Frontend / UX Engineer (Contractor) to join a fintech-focused team in LATAM. You’ll build and enhance a Digital Wallet UI using React/JS/TS, delivering polished interfaces and scalable patterns while leveraging AI-assisted tooling.

You’ll work with product and design to turn requirements into intuitive experiences, own features end-to-end, and collaborate across frontend and backend boundaries in a fully remote environment.