Description We’re looking for an experienced Frontend Developer to join our team and work on a high-load web platform. You’ll maintain and optimize our legacy jQuery system while preparing the technical foundation for migration to a modern React/Next.js stack. This role offers the opportunity to tackle real production challenges in a performance-critical environment, collaborate with cross-functional teams, and directly influence the future architecture of our platform.
Requirements — 4–6 years of frontend development experience with high-load, production-grade projects — Advanced expertise in jQuery and legacy codebase maintenance — Strong experience with React.js (Hooks, functional components, context, custom hooks) — Next.js proficiency (SSR/SSG, API routes, App Router) — Mastery of CSS/SCSS, including responsive design, Grid, Flexbox. — Proficiency in JavaScript (ES6+), including async programming and WebSocket integration — Experience with performance optimization techniques (bundle analysis, Core Web Vitals, mobile performance) — Skilled with build tools such as Webpack, Vite, and Gulp — Familiarity with RESTful API integration and security best practices — Experience with cross-browser compatibility, debugging, and responsive design principles
Nice to Have — TypeScript and strategies for gradual adoption — Basic understanding of PHP for backend API integration — Experience with testing frameworks (Jest, React Testing Library, Cypress) — GSAP for advanced animations and interactive UI elements — Familiarity with design tools (Figma, Zeplin, Photoshop, Sketch) — Knowledge of CI/CD pipelines and DevOps fundamentals — SEO and web analytics understanding — A/B testing platforms and conversion optimization experience
Soft Skills — Detail-oriented with precision in high-load environments — Excellent communication and collaboration skills across cross-functional teams — Problem-solving mindset with an analytical approach to performance and architecture challenges — Adaptable and comfortable working with both legacy and modern technologies — Ownership mentality, taking responsibility for code quality and system stability
Responsibilities — Maintain and optimize the existing jQuery 2.2.4 codebase for performance and stability — Refactor and modularize large CSS architectures for maintainability — Ensure mobile UX quality and cross-browser compatibility — Maintain and enhance WebSocket integrations for real-time features — Implement security improvements and input validation processes — Plan and design React component architecture for future migration — Develop API integration strategies for Next.js — Establish performance benchmarking and testing infrastructure — Modernize build processes with Vite and other tools — Design and implement centralized state management solutions — Develop business-critical features such as payment flows, authentication systems, and promotion management interfaces — Support and enhance A/B testing and conversion optimization tools
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Job ID:
148440
Требуемые навыки:
Backend, Css, Devops, Frontend, Javascript, Php, Seo
