Full Stack UI Developer

About the role

The Applications Development Intermediate Programmer Analyst position is an intermediate‑level role within Citi Equities Technology. The focus is on building and maintaining modern web applications using React, TypeScript and related technologies.

Key responsibilities

• Develop and maintain web applications with React and TypeScript, delivering clean, maintainable code.
• Manage application state using Redux and Redux Toolkit, and integrate middleware as needed.
• Write unit tests with Vitest (and Jest) to ensure high test coverage.
• Create and maintain a library of reusable UI components for use across multiple feature teams.
• Contribute to front‑end architecture decisions, design patterns and best practices.
• Perform code reviews and promote code quality, maintainability and testability.
• Plan and schedule own work, delivering functionality with minimal supervision.
• Collaborate with cross‑functional teams to foster a positive working culture.

Required profile

• 3–8 years of hands‑on experience with modern web technologies.
• Strong analytical and technical abilities, capable of working independently and as part of a team.
• Self‑starter attitude with the ability to manage tasks without direct supervision.

Required skills

• HTML5, CSS3/SASS/CSS‑in‑JS
• Core JavaScript and TypeScript
• React (including hooks) and Redux (Redux Toolkit)
• Unit testing with Jest, React Testing Library and Vitest
• State management tools such as Recoil or React Context
• RxJS, WebSockets, Web Workers
• Build tools like Webpack or Vite
• Debugging, performance benchmarking
• Electron, RESTful APIs, JWT, Node.js, Express.js