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Senior GUI Developer in Technology
Job in
Mississauga, Ontario, Canada
Listed on 2026-08-29
Listing for:
Citigroup Inc.
Full Time
position Listed on 2026-08-29
Job specializations:
-
Software Development
React.js, Front End Developer, Senior Developer, Javascript
Job Description & How to Apply Below
Join Citi Equities Technology as a Senior GUI Developer, focusing on React and Redux. Apply your technical expertise to optimize web applications and reduce risk.
In this senior position, you'll work alongside development teams and front office personnel, enhancing business solutions with your strong analytical skills. Candidates should have 6-10 years of relevant experience, capable of both team collaboration and independent work.
Key Responsibilities:
• Design and maintain applications using React and Type Script
• Manage state effectively with Redux and middleware
• Achieve high test coverage with unit tests using Vitest
• Craft reusable UI components for various applications
• Conduct code reviews to ensure software quality
Requirements:
• Expertise in HTML5, CSS3/SASS, and JavaScript framework
• Experienced with React, hooks, and unit testing
• Strong skills in application state management with Redux
• Familiar with RxJS, Web Sockets, and debugging techniques
• Knowledge of RESTful APIs and Node.js
Capitalize on your GUI development skills to deliver exceptional solutions with Citi Equities Technology.
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Position Requirements
10+ Years
work experience
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