Senior Frontend (React) Developer

Decima Digital is looking for a Senior React Developer with strong experience in e-commerce projects. You will join an internationally distributed team working on a high-load e-commerce platform for a client with strong recognition in the USA and worldwide. The project focuses on improving and scaling the client’s existing solution.

Responsibilities

Develop new UI features and interfaces using React / Next.js / PWA
Integrate frontend with backend APIs (REST, GraphQL)
Optimize performance of key pages and user flows (SSR, lazy loading, code splitting, caching, rendering) to achieve high scores (Lighthouse, Core Web Vitals)
Build responsive and cross-browser interfaces aligned with design guidelines and accessibility standards (WCAG/ADA)
Write clean, maintainable code following best practices (SOLID, React patterns, ESLint/Prettier)
Conduct code reviews, ensure code quality, and improve engineering practices
Actively participate in Agile processes (planning, grooming, retrospectives)

Requirements

5+ years of commercial frontend development experience, including at least 3 years with React.js
Strong knowledge of JavaScript (ES6+)
Advanced skills in HTML5, CSS3, responsive and cross-browser development
Experience with CSS preprocessors (Sass/LESS) and modern styling approaches (CSS-modules, styled-components, etc.)
Solid experience with REST/GraphQL APIs
Proven ability to optimize UI for different devices and performance scenarios
Understanding of cross-browser/platform issues and solutions
Hands-on experience with Git and modern workflows
English — Upper-Intermediate+
Experience with e-commerce projects is required
Experience with Magento and PWA frameworks is a plus

Soft Skills

Ability to clearly explain complex technical concepts in simple language
Initiative and eagerness to grow professionally
Team-oriented mindset and ownership of results

We Offer

Work on international e-commerce projects with well-known global clients
Remote or hybrid work options within a distributed team
Modern stack: React, Next.js, PWA, headless
Agile processes without unnecessary bureaucracy
Competitive compensation and professional growth opportunities

Decima Digital is where passionate developers build smarter commerce. We combine Magento’s DNA with today’s best engineering practices to deliver scalable, high-quality solutions for global brands. Our projects demand real problem-solving, architectural thinking, and craftsmanship—perfect for developers who want to grow their expertise and make an impact.

Senior Frontend (React) Developer

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