UI Developer (Javascript)
Job Description
Your Responsibilities
- Bring high‑fidelity designs to life with pixel‑perfect, responsive, and accessible UI implementation.
- Convert Figma (or similar) prototypes into clean, semantic HTML5, modern CSS/SCSS, and well‑structured JavaScript.
- Build scalable, reusable UI components and maintain a cohesive design system.
- Ensure cross‑browser compatibility, including required polyfills and fallbacks.
- Drive performance excellence through:
- Smart asset loading (lazy loading)
- Code splitting and optimized bundling
- Dynamic imports
- Bundle size analysis and reduction
- Lighthouse & Core Web Vitals improvements
- Apply appropriate rendering or delivery techniques (e.g., SSR/SSG/ISR when applicable).
- Implement and maintain WCAG‑compliant accessibility standards.
- Integrate front-end applications with REST APIs using clean, maintainable JavaScript logic.
- Write robust documentation, clean code, and enforce quality through best practices.
- Contribute to testing strategies using tools like Jest, React Testing Library, Cypress, or Playwright.
- Participate in code reviews and help drive high standards for UI quality and front-end architecture.
Qualifications
Required Experience & Skills
- 8+ years of professional software development experience.
- 5+ years specializing in front-end engineering.
- Strong expertise in JavaScript (ES6+), HTML5, CSS3, and SCSS.
- Deep knowledge of responsive design, mobile‑first development, and complex layout techniques.
- Solid understanding of performance optimization:
- Lazy loading
- Code splitting
- Dynamic imports
- Bundle analysis
- Experience with SSR/SSG/ISR approaches (React/Next.js experience is a plus but not the focus).
- Strong understanding of cross-browser compatibility and polyfills.
- Proven experience in implementing WCAG accessibility best practices.
- Experience writing automated tests for front-end applications.
- Familiarity with headless CMS and JAMstack concepts.
- Experience consuming RESTful APIs.
- Strong Git workflow knowledge and CI/CD experience.
- Excellent problem-solving skills and clear communication.
