Frontend Engineer (React/Next.js) for Sustainable E-commerce Marketplace

We are looking for an experienced Frontend Engineer to join the development of a mature European e-commerce marketplace focused on sustainable retail.

You will work on customer-facing marketplace features using Next.js, React, and TypeScript, with a strong focus on performance, accessibility, reusable UI components, and high-quality user experiences.

The role involves close collaboration with backend, UI/UX, product, and design system teams, as well as integration with key marketplace services such as search, payments, localization, and GraphQL APIs.

Benefits:

• Fully remote work
• Free access to Udemy courses across 1,000+ topics for professional and personal development
• Long-term collaboration on a mature European e-commerce product
• Opportunity to work with a modern frontend stack and actively evolving product architecture
• Direct impact on customer experience, performance, and accessibility
• Collaboration with experienced frontend, backend, product, and UI/UX specialists
• High level of ownership and involvement in technical decisions
• Professional growth through modern frontend engineering, performance optimization, and large-scale e-commerce development

About the client:

Germany’s leading online marketplace for sustainable fashion and green lifestyle products. It connects conscious consumers with vetted brands and sellers offering eco-friendly alternatives across fashion, home, beauty, and daily essentials. Its model combines curated assortment, sustainability standards, and a strong marketplace experience for both shoppers and merchants.

Location: Germany

Requirements:

• Several years of professional frontend development experience with React
• Strong TypeScript and modern JavaScript (ES6+) skills
• Experience with Next.js or comparable SSR/SSG frameworks
• Experience integrating GraphQL and/or REST APIs
• Experience with automated frontend testing, such as Jest and Testing Library
• Strong understanding of frontend performance, Core Web Vitals, accessibility (WCAG), and code quality
• Ability to make pragmatic technical decisions and balance engineering quality with delivery speed
• Experience using AI-powered development tools for coding, reviews, or testing
• Nice to have: Experience with design systems, reusable component libraries, or Storybook
• Nice to have: Experience with search integrations such as Algolia
• Nice to have: Experience with payment integrations such as Stripe
• Nice to have: Experience with internationalization using i18n/i18next
• Nice to have: Experience with modern Yarn or monorepo tooling
• Nice to have: Familiarity with ESLint, Prettier, or Knip

Responsibilities:

• Develop and maintain marketplace features using Next.js, React, and TypeScript
• Integrate GraphQL APIs and implement efficient data and session handling
• Build and maintain reusable UI components in collaboration with the design system team
• Improve frontend performance, Core Web Vitals, SSR/CDN caching, and accessibility
• Write automated tests, participate in code reviews, and maintain high code quality
• Collaborate closely with backend, UI/UX, and product teams on APIs and user experience
• Use modern AI tools to support development, testing, and code review workflows