EPAM is a leading integral provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture.

Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

We are seeking a Lead JavaScript Software Engineer 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, working closely with backend engineers, UX designers and product owners to 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 (utilizing features like SSR, SSG and API routes)
- Implement pixel-perfect, mobile-first designs that adapt seamlessly across devices, with a specific focus on optimizing layouts, animations and touch interactions for mobile viewports (including iOS/Android browsers)
- Manage complex client-side state (e.g. Redux, Zustand, Context API) and integrate applications with backend RESTful or GraphQL APIs
- Profile and optimize applications for maximum loading speed, Core Web Vitals and smooth rendering on lower-powered mobile devices
- Craft exceptional web experiences that look and feel like native mobile apps




- Optimize performance for both desktop and mobile web view browsers (including iOS Safari)
- Write clean, maintainable and testable JavaScript/TypeScript
- Conduct thorough code reviews and contribute to the shared UI component library

Requirements

- 5+ years of experience in software development
- Proven experience in modern web development with a strong focus on building user-facing features
- Advanced knowledge of JavaScript (ES6+), TypeScript and React
- Practical experience with the Next.js framework (App Router or Pages Router, Server Components)
- Familiarity with modern CSS frameworks or methodologies (e.g. Tailwind CSS, styled-components, CSS Modules)
- Experience in optimizing web apps for mobile browsers, PWAs (Progressive Web Apps), or integrating web views within hybrid mobile containers
- Experience with Git and working in an Agile/Scrum development cycle
- English proficiency at B2 level or higher

We offer

- International projects with top brands
- Work with global teams of highly skilled, diverse peers
- Healthcare benefits
- Employee financial programs
- Paid time off and sick leave
- Upskilling, reskilling and certification courses
- Unlimited access to the LinkedIn Learning library and 22,000+ courses
- Global career opportunities
- Volunteer and community involvement opportunities
- EPAM Employee Groups
- Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn

EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.

📌 Lead JavaScript Software Engineer (Guadalajara)
🏢 Epam Systems
📍 Guadalajara