(Senior) Lead Frontend Developer, Zalo Platform
🤖 What you will do
• Lead frontend technical direction and own architecture decisions;
• Design and develop high-quality, scalable features while managing technical debt strategically;
• Plan sprints, assign tasks, support estimation, and review requirements with Product team;
• Conduct code reviews and enforce coding standards to ensure quality and consistency;
• Mentor junior and senior developers on coding practices, design patterns, and problem-solving;
• Lead knowledge-sharing sessions and build a culture of continuous learning;
• Act as primary liaison between Frontend, Product, Backend, QA, and Design teams;
• Develop user interfaces using HTML5, JavaScript, CSS, ReactJS, and Zalo's frameworks (Miniapp, ZInstant);
• Evaluate and adopt new technologies to improve build time, CI/CD, and development efficiency;
• Drive performance optimization initiatives (load time, rendering, bundle size, responsiveness);
• Monitor and ensure the best performance, quality, and responsiveness of interfaces.
👾 What you will need
• 2-4+ years of frontend development experience;
• (For Lead) 2+ years in technical leadership role (Tech Lead, Senior/Lead Developer);
• Solid understanding of OOP principles, design patterns, and data structures & algorithms;
• Deep expertise in modern frontend technologies: HTML5, CSS, JavaScript (ES6+), and frameworks like ReactJS;
• Strong knowledge of responsive design, cross-browser compatibility, and performance optimization;
• Proficiency with modern frontend tooling (Webpack, Vite, npm/yarn) and state management (Redux, Context API);
• Experience with CSS preprocessors (Sass, Less) and CSS-in-JS solutions;
• Proven experience optimizing web performance: bundle size, load time, rendering, memory usage;
• Excellent communication and cross-functional collaboration skills;
• Experience in leading and mentoring team members with focus on their career growth and skill development;
• Strong sense of ownership, open-mindedness, and passion for continuous learning;
• Team player who can work both independently and collaboratively;
