Software Engineer III - React JS

Overview

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.

As a Software Engineer III (UI Developer) at JPMorgan Chase within the Corporate Technology team , you serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way. You are responsible for building compelling, performant user interfaces and carrying out critical technology solutions across multiple technical areas within various business functions in support of the firm's business objectives. You will work on highly impactful projects, building client-facing applications with modern UI frameworks while leveraging your backend knowledge to deliver end-to-end solutions.

Job Responsibilities

• Develops performant, scalable, and responsive front-end applications using modern UI frameworks and best practices
• Implements micro frontend architectures to enable modular, maintainable, and independently deployable UI components
• Adopts the latest UI trends, techniques, and technologies to deliver exceptional user experiences
• Builds reusable capabilities and patterns for fast UI application development using firmwide UI toolkit and standards
• Writes comprehensive unit tests using Jest and other testing frameworks (React Testing Library, Playwrite) to ensure code quality and reliability
• Develops secure and high-quality production code with robust software design and architecture
• Demonstrates expert-level debugging skills using browser developer tools to identify and resolve complex front-end issues
• Drives decisions that influence the product design, application functionality, and technical operations and processes
• Designs and implements hands-on solutions while providing technical leadership and mentorship to more junior team members
• Contributes to software engineering communities of practice and events that explore new and emerging technologies
• Adds to team culture of diversity, opportunity, inclusion, and respect
  
  

• Formal training or certification on software engineering concepts and 3+ years applied experience
• Hands-on practical experience in UI development with proficiency in React.js, JavaScript/TypeScript, and building scalable front-end applications
• Strong understanding of modern React features (hooks, context, state management) and front-end architecture
• Proven experience with micro frontend architectures and component-based design patterns
• Strong expertise in unit testing frameworks, particularly Jest, React Testing Library, and end-to-end testing tools like Cypress
• Advanced debugging skills using browser developer tools (Chrome DevTools, Firefox Developer Tools) for performance profiling, network analysis, and troubleshooting
• Solid understanding of APIs (RESTful) and integration with backend services
• Experience in developing, debugging, and maintaining code in a large corporate environment
• Overall knowledge of the Software Development Life Cycle
• Solid understanding of agile methodologies such as CI/CD, Application Resiliency, and Security
  
  

• Knowledge of Python and backend technologies (e.g., FastAPI, Spring Boot) to collaborate effectively with backend teams
• Experience with JPMorgan open-source design system and UI toolkit SALT
• Familiarity with design tools like Adobe Creative Suite, Sketch, or Figma