Senior React Developer

Mississauga, ON
$94,300-141,500 per year
Permanent
Full-time

15 hours ago

We are seeking a highly skilled and experienced Senior UI Developer to join our Applications Development team. This intermediate-level position requires participation in the establishment and implementation of new or revised application systems and programs, with a primary focus on creating exceptional user experiences. The ideal candidate will possess a strong understanding of modern web development practices and will play a crucial role in designing, developing, and implementing robust and scalable user interfaces for our flagship products. This role involves close collaboration with product managers, UX/UI designers, and backend engineers, contributing significantly to applications systems analysis and programming activities.Responsibilities:

Lead the development of complex, highly performant, and responsive web applications using React.js and its ecosystem.
Architect and implement state management solutions with Redux to ensure predictable and maintainable application states.
Translate UI/UX designs and wireframes into high-quality code, ensuring technical feasibility and optimal user experience.
Write clean, modular, and well-documented JavaScript (ES6+) and CSS/Sass/Less.
Collaborate with design teams to refine user interfaces and ensure consistency across our product suite.
Work closely with backend developers to integrate front-end components with API services.
Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, and model development.
Establish and implement new or revised applications systems and programs to meet specific business needs or user areas.
Monitor and control all phases of the development process and analysis, design, construction, testing, and implementation.
Serve as an advisor or coach to new or lower-level analysts and mentor junior developers.
Stay up-to-date with emerging front-end technologies and best practices.

Required Skills and Qualifications:

Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent experience.
5-8 years of relevant experience in systems analysis and programming of software applications, with a strong focus on UI development.
Expert-level proficiency with React.js and its core principles, including component lifecycle, hooks, and context API.
Strong experience with state management libraries, particularly Redux, and associated middleware (e.g., Redux Thunk, Redux Saga).
Deep understanding and advanced proficiency in CSS, including preprocessors (Sass/Less), CSS-in-JS solutions, responsive design, and cross-browser compatibility.
Exceptional command of JavaScript (ES6+), including asynchronous programming, DOM manipulation, and modern language features.
Experience with front-end build tools (Webpack, Babel, npm/yarn).
Familiarity with version control systems (Git).
Experience with testing frameworks (e.g., Jest, React Testing Library).
Experience in managing and implementing successful projects.
Working knowledge of consulting/project management techniques/methods.
Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements.
Excellent problem-solving skills and attention to detail.
Strong communication and interpersonal skills, with the ability to work effectively in a team environment.

Preferred Qualifications (Nice to Have):

Experience with TypeScript.
Knowledge of other front-end frameworks (e.g., Angular, Vue.js).
Experience with performance optimization tools and techniques.
Familiarity with accessibility standards (WCAG).
Understanding of UI/UX principles and design patterns.

DO NOT REMOVE|e3215dd022a9da68f3595847a1faf72eed4a55842b5e9386af5b0eca78a2f158Job Family Group: TechnologyJob Family: Applications DevelopmentTime Type: Full timePrimary Location Full Time Salary Range: $94,300.00 - $141,500.00Most Relevant Skills Please see the requirements listed above.Other Relevant Skills For complementary skills, please see above and/or contact the recruiter.Automated Processing and AIWe 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.This job opening is for an existing job vacancy.Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review .View Citi’s and the poster.

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