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Lead Frontend Developer (ReactJS), Assistant Vice President
BELFAST, United Kingdom
·
On-site
·
Full-time
·
2w ago
We are seeking a talented and passionate Lead Frontend Developer with deep expertise in ReactJS to spearhead the development of our cutting-edge user interfaces. The ideal candidate will be a technical leader, responsible for guiding the frontend team, defining architectural patterns, and ensuring the delivery of high-quality, performant, and intuitive web applications. This role requires a strong command of modern JavaScript, React ecosystem, and a commitment to best practices in UI/UX development.
Key Responsibilities
- Lead the design, development, and implementation of complex, scalable, and responsive web applications using ReactJS and its ecosystem.
- Define and enforce frontend architectural patterns, coding standards, and best practices to ensure consistency, maintainability, and performance across all frontend projects.
- Provide technical leadership, mentorship, and guidance to a team of frontend developers, fostering their growth and ensuring high-quality code delivery.
- Collaborate closely with UX/UI designers, product managers, and backend engineers to translate wireframes and designs into pixel-perfect, highly functional user interfaces.
- Oversee and conduct thorough code reviews, ensuring adherence to quality, performance, security, and accessibility standards.
- Optimize application performance, identify and resolve frontend bottlenecks, and improve overall user experience.
- Drive the adoption of new technologies, tools, and methodologies to enhance our frontend development capabilities.
- Stay up-to-date with the latest trends and advancements in frontend development, ReactJS, and web technologies.
Required Qualifications
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field.
- Professional experience in frontend web development, with at least 3 years in a lead or senior role focused on ReactJS.
- Expert-level proficiency in ReactJS, including a deep understanding of its core principles, component lifecycle, hooks, and state management libraries (e.g., Redux, Context API, Zustand).
- Strong command of modern JavaScript (ES6+), HTML5, and CSS3, with experience in pre-processors (e.g., SASS, LESS) and styled-components or CSS-in-JS solutions.
- Demonstrable experience with frontend build tools (e.g., Webpack, Vite, Babel) and package managers (npm, yarn).
- Proficiency in writing unit, integration, and end-to-end tests for frontend applications (e.g., Jest, React Testing Library, Cypress).
- Solid understanding of responsive design principles and cross-browser compatibility issues.
- Experience with version control systems, particularly Git.
- Excellent problem-solving skills, strong analytical capabilities, and clear communication skills (verbal and written).
Preferred Qualifications
- Experience with other JavaScript frameworks or libraries (e.g., Angular, Vue.js).
- Familiarity with server-side rendering (SSR) frameworks like Next.js or Remix.
- Experience with GraphQL APIs.
- Knowledge of accessibility standards (WCAG) and implementing accessible user interfaces.
- Understanding of CI/CD pipelines and deployment processes for frontend applications.
- Experience with cloud platforms (e.g., AWS, Azure, GCP).
- Familiarity with UI component libraries and design systems (e.g., Material-UI, Ant Design, Storybook).
Job Family Group:
Technology
Job Family:
Applications Development
Time Type:
Full time
Most Relevant Skills
Please see the requirements listed above.
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.
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 Accessibility at Citi.
View Citi’s EEO Policy Statement and the Know Your Rights poster.
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About Citigroup

Citigroup
PublicCitigroup Inc. or Citi is an American multinational investment bank and financial services company based in New York City. The company was formed in 1998 by the merger of Citicorp, the bank holding company for Citibank, and Travelers; Travelers was spun off from the company in 2002.
10,001+
Employees
New York City
Headquarters
Reviews
3.3
4 reviews
Work Life Balance
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Compensation
3.2
Culture
2.8
Career
2.5
Management
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Pros
Compensation increases for investment banking roles
Legitimate investment banking employer
Internship opportunities available
Cons
Unclear career progression paths
Limited meaningful experience in internships
Compensation raises lower than competitors
Salary Ranges
28 data points
Mid/L4
Senior/L5
Staff/L6
Mid/L4 · Business Risk Intermediate Analyst
1 reports
$77,165
total / year
Base
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Stock
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Bonus
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$77,165
$77,165
Interview Experience
5 interviews
Difficulty
2.8
/ 5
Duration
14-28 weeks
Experience
Positive 0%
Neutral 40%
Negative 60%
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1
Application Review
2
Recruiter Screen
3
Programming Assessment
4
Hiring Manager Interview
5
Panel/Superday Interviews
6
Final Decision
Common Questions
Technical Knowledge
Case Study
Behavioral/STAR
Past Experience
Culture Fit
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