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Zalando Lounge Logo Zalando Lounge · IT - Software Development

Fullstack Engineer

Finland, Helsinki · Job Posted March 05, 2026
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Job Description

Partner Tech is at the heart of Zalando’s partner business, generating 34% of our total revenue. Our mission is to empower partners, from multi-million euro fashion brands to physical retail stores, by building a robust, scalable, and intuitive platform. This platform seamlessly connects with 50 million customers, and together with our partners, we fulfill more than 200 million orders every year. Our teams build and operate business-critical services that allow partners to connect to and sell within the Zalando ecosystem. As a Fullstack Engineer (Frontend Focus) in Zalando Partner Tech, you will plan, develop, test, and operate our core UX that allows our partners to seamlessly manage their inventory, stocks, and prices, helping them thrive within our business. You will act as a bridge between complex backend logic and an intuitive user interface, taking ownership of features from the database to the pixel.

Job Responsibility

  • Develop and maintain high-quality, responsive, and scalable frontend systems for partner-facing web applications
  • Extend backend services and adjust API endpoints as needed to support frontend requirements
  • Collaborate with product managers to refine requirements and with UX/UI designers to translate complex B2B workflows into intuitive interfaces
  • Champion best practices in frontend development
  • Write clean, modular, and testable code
  • Mentor other engineers on modern UI standards
  • Participate in the entire product development lifecycle
  • Take full ownership of features
  • Proactively identify and solve complex technical challenges

Requirements

  • Proven professional experience in web development with a strong command of React and TypeScript
  • Deep and practical understanding of modern JavaScript (ES6+), HTML5, CSS3, and the broader ecosystem of web technologies
  • Hands-on experience with modern state management libraries (such as Redux, React Query, or Context API)
  • Proficient in building responsive and performant user interfaces
  • Comfortable navigating backend codebases (e.g., Java, Kotlin)
  • Good communication and collaboration skills
  • Strong analytical and problem-solving skills

Nice to have

Proven experience working on backend microservices

What we offer

  • Culture of trust, empowerment and constructive feedback
  • Internal guilds and Employee Resource Groups
  • Knowledge sharing through tech talks and open source commitment
  • Internal tech academy and blogs
  • Competitive salary and employee shares program
  • 40% Zalando discount
  • 30% off Zalando Lounge
  • Additional discounts from external partners
  • Monthly transport, lunch and recreation vouchers
  • Private health insurance and occupational health care services
  • Family services
  • Free beverages and snacks
  • Diverse sports and health offerings
  • Centrally located office in Kamppi, Helsinki
  • Flexible working times
  • Additional holidays
  • Hybrid working model
  • Extensive onboarding, mentoring and training opportunities
  • International team of experts
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