Develop and maintain high-quality, responsive, and scalable frontend systems for our partner-facing web applications
Collaborate effectively with product managers to refine requirements and with UX/UI designers to translate complex B2B workflows into intuitive, user-friendly interfaces
Champion best practices in frontend development within the team
Write clean, modular, and testable code, and mentor other engineers who may be more backend-focused on modern UI standards
Actively participate in the entire product development lifecycle—from initial concept and design through to development, testing, deployment, and operation
Proactively identify and solve complex technical challenges, always approaching problems with a 'Partner First' mindset

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)
Understanding of how to handle complex data flows in data-heavy B2B applications
Proficient in building responsive and performant user interfaces that deliver seamless experiences across various devices and browsers
Comfortable navigating backend codebases (e.g., Java, Kotlin)
Ability to write or modify API endpoints and perform basic database queries
Proven experience working on backend microservices is a plus
Good communication and collaboration skills
Enjoy working in an international and diverse environment with a positive no-job-is-beneath you attitude as a team player
Strong analytical and problem-solving skills, meticulous attention to detail, and a proactive, product-oriented mindset

Culture of trust, empowerment and constructive feedback with internal guilds and Employee Resource Groups
Knowledge sharing through tech talks and open source commitment
Internal tech academy and blogs
Product demos, meetups, parties and events
Competitive salary and employee shares program
40% Zalando discount on products sold and shipped by Zalando
30% off Zalando Lounge and 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, with flexible working times
Additional holidays
Hybrid working model
Extensive onboarding, mentoring and training opportunities
International team of experts to work with

Fullstack Engineer – Frontend Focus

Key skills