We are seeking a highly capable Senior JavaScript Developer with a passion for building rich, responsive web and hybrid-mobile applications. In this role, you will leverage your expertise in JavaScript/TypeScript, React, and Next.js to deliver fast, SEO-friendly, and mobile-first user interfaces.

You will focus on crafting exceptional web experiences that look and feel like native mobile apps, optimizing performance for both desktop and mobile web view browsers (including iOS Safari). Working closely with backend engineers, UX designers, and product owners, you will translate interactive designs into clean, modular, and reusable front-end code.

Responsibilities
- Design and build high-performance, responsive web applications using React and Next.js, leveraging features such as SSR, SSG, and API routes
- Implement pixel-perfect, mobile-first designs that adapt seamlessly across devices, with special focus on optimizing layouts, animations, and touch interactions for mobile viewports including iOS and Android browsers
- Manage complex client-side state using tools such as Redux,



Zustand, or Context API, and integrate applications with backend RESTful or GraphQL APIs
- Profile and optimize applications to achieve maximum loading speed, strong Core Web Vitals, and smooth rendering on lower-powered mobile devices
- Write clean, maintainable, and testable JavaScript/TypeScript code, conduct thorough code reviews, and contribute to the shared UI component library

Requirements
- At least 3 years of professional relevant experience in software development
- Proven experience in modern web development with a strong focus on delivering user-facing features
- Advanced knowledge of JavaScript (ES6+), TypeScript, and React for building scalable and dynamic front-end applications
- Practical experience with the Next.js framework, including App Router or Pages Router and Server Components
- Familiarity with modern CSS frameworks and methodologies such as Tailwind CSS, styled-com

📌 Senior JavaScript Developer (Guadalajara)
🏢 Epam Systems
📍 Guadalajara