Lead Frontend Developer (ReactJS), Assistant Vice President

Citigroup Inc.
Belfast, United Kingdom
2 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Belfast, United Kingdom

Tech stack

JavaScript
API
Amazon Web Services (AWS)
Application Performance Management
Architectural Patterns
HTML5
Azure
Browser Compatibility
CSS
Code Review
Web Development
Design of User Interfaces
Package Management Systems
Preprocessor
Next.js
Responsive Web Design
Software Engineering
Web Content Accessibility Guidelines
Web Applications
Website Wireframe
Google Cloud Platform
React
Cypress
Pixel Perfect
Backend
GIT
Vue.js
SASS
WebPack
Angular
Information Technology
Build Tools
GraphQL
Web Technologies
Front End Software Development
React
Software Version Control

Job description

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., * 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.

Requirements

Do you have a Master's degree?, * 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).

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