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React Developer

AI AXISS INC
13 hours ago
Full-time
On-site
Whippany 07981, United States

React Web Developer — American Express One App

Location: Phoenix, AZ - Locals only

Openings: 6 positions

Mandatory Experience: Front-end React development with hands-on American Express One App experience

Interview Mode: In-person

Job Summary

We are seeking React Web Developers with hands-on American Express One App experience to develop and maintain responsive, reusable front-end applications. The role involves building user interfaces, integrating APIs, improving application performance, and collaborating with product, design, back-end, and QA teams. Candidates must be comfortable delivering features within an existing One App application environment.

Key Responsibilities

  • Develop and maintain responsive web interfaces using React, JavaScript, HTML, and CSS.
  • Build reusable components and implement features within the American Express One App environment.
  • Develop and maintain modular front-end features using One App’s Holocron module architecture.
  • Integrate REST APIs and handle application state, loading states, validation, and errors.
  • Collaborate with designers and product teams to translate requirements into accessible, consistent user experiences.
  • Optimise rendering, page-load performance, and front-end resource usage.
  • Write and maintain unit and integration tests and support regression testing.
  • Investigate browser, application, and integration issues and implement fixes.
  • Participate in code reviews and follow established coding, security, and quality standards.
  • Work with back-end engineers, QA, and DevOps teams to support integration and deployment.
  • Document components, implementation decisions, and development workflows.

Required Qualifications

  • Hands-on experience developing front-end applications with React.
  • Prior hands-on experience with American Express One App is required.
  • Strong JavaScript, HTML, CSS, responsive design, and browser-debugging skills.
  • Understanding of One App’s modular architecture and independently developed, tested, and deployed Holocron modules.
  • Experience integrating REST APIs and working with JSON.
  • Experience with React component patterns, state management, and front-end testing.
  • Familiarity with Git, code reviews, and CI/CD workflows.
  • Ability to troubleshoot front-end issues and collaborate effectively across engineering and product teams.