Senior GUI developer - Equities Technology

Citi

Mississauga, CAhybrid$121k-$171k/yrPosted Jul 21, 2026
Posting intelligenceActively listedReposted 18×, possible evergreen/ghost posting

Skills

confluencejavascripttypescriptmongoexpressjenkinsangularnodedockervitesthtmlreactcssjest

About the role

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview

This role is for a Senior GUI developer in Citi Equities Technology. As a senior developer you will work together with front office, product development and members of development team to provide solutions that improve efficiency, decrease operational risk, and enable the business to.

The candidate should possess strong analytical and technical ability with 6-10 years' experience in React, Redux, websockets and cutting-edge web technologies. Candidate should be able to work independently as well as being a team player, with good communication skills and stake holder management.

Responsibilities:

Design, develop and maintain web apps using React and TypeScript, ensuring high quality, clean and maintainable code.

Manage application state using redux and middleware such as redux toolkit.

Ensure high test coverage by writing unit tests using Vitest.

Write and maintain a suite of reusable UI components which can be used across different feature apps.

Contribute to the overall application architecture and provide inputs on front end frameworks, design patterns and best practices.

Perform code reviews and contribute to overall quality, maintainability and testability of software developed.

Be a self-starter and plan/schedule own work for tasks and projects, implement functionality without direct supervision.

Work closely with teams to form good working culture and continuously adapt to different working environment.

Requirements:

Hands on HTML5, CSS3/SASS/CSS in JS, Core JavaScript, Typescript

Hands on React, React hooks

Unit Testing with Jest, React-testing-library

Application State Management with Redux, Recoil, React Context

Reactive Apps with RxJS, Web Sockets, Web workers

Build Tools like Webpack/Vite etc

Debugging skills, Code performance, Bench Marking

Container based development like Electron

RESTful APIs, JWT, NodeJS, Express JS

Nice to have:

Exposure to Bitbucket, Jenkins, Artifactory, Confluence

MongoDB, AMPS Server - should be able to query

Workspace tools – npm workspace, Micro Frontend, ESLint/TSLint

Docker management, Openshift containers

Experience working with other UI frameworks such as Angular

Education:

Bachelor’s degree/University degree or equivalent experience

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Primary Location Full Time Salary Range:

$120,800.00 - $170,800.00

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

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This job opening is for an existing job vacancy.

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Compensation

This Software Engineer role pays $121k-$171k/yr. Within typical range for software engineer roles in Canada.

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