Senior Fullstack Engineer - ZEOS (all genders)

Role: Senior Fullstack Engineer - ZEOS Team: The B2B Platform is the high-performance engine that allows our partners to seamlessly integrate into the Zalando ecosystem. As a Senior Fullstack Engineer, you will be a key architect of the services that power our partner-facing products and internal operational tools. Our mission is to transform complex business requirements into a scalable, API-first platform that empowers partners to grow with speed and flexibility. Responsibilities: - Engineer Scalable Backend Systems: Design, develop, and evolve high-performance Microservices using Java and Spring Boot, ensuring they handle the complexities of a global B2B landscape. - Design Intuitive APIs: Help us build RESTful services that prioritize clarity and ease of use, ensuring a seamless experience for every developer who interacts with our platform. - Own the Full Lifecycle: Support the "You Write It, You Run It" philosophy. You will be responsible for the entire journey of your code—from initial design and Gradle-based builds to deployment and 24/7 operational health. - Master Cloud Infrastructure: Leverage AWS and Kubernetes to build resilient, distributed systems that are compliant-by-design and operationally transparent. - Drive Engineering Standards: Set the bar for code quality through rigorous testing, code reviews, and the use of modern tools like Jackson for efficient data processing. - Collaborate Across the Stack: While your heart is in the backend, you enjoy collaborating with frontend teams and have an interest in Fullstack contexts to ensure end-to-end feature success. - Mentor and Guide: Actively share your knowledge within the team and across the ZEOS community, helping to navigate technical uncertainty and architectural trade-offs. Qualifications: - Seasoned Java Developer: You are a seasoned Java Developer with deep expertise in Spring Boot and a strong grasp of the modern JVM ecosystem (including build tools like Gradle). - Thoughtful Architect: You have extensive experience in Microservice architectures, distributed systems, and designing clean, versioned REST APIs. - Cloud Native Contributor: You are proficient in deploying and operating applications within AWS and are comfortable navigating Kubernetes environments. - Quality-Minded Practitioner: You are highly skilled in building CI/CD pipelines and believe that automated testing and observability are fundamental to "Senior" level engineering. - Agile Partner: You thrive in agile environments, taking ownership of complex topics and moving them from discovery to production with an analytical and solution-oriented mindset. - Effective Communicator: You possess excellent English skills and the ability to translate technical complexity into actionable plans for both engineers and stakeholders. - Fullstack-Curious: You have an interest in how the frontend consumes your services and are happy to jump across the stack to help the team deliver a cohesive product. What We Offer: - 27 days of holiday a year to start for full-time employees (+1 day for every calendar year up to 30 days) - 2 paid volunteering days a year - Hybrid working model with up to 40% remote per week, actual practice is up to each team to best support their collaboration - Employee shares program - 40% off fashion and beauty products sold and shipped by Zalando, 30% off Lounge by Zalando, discounts from external partners - Relocation assistance available (subject to prior agreement) - Family services, including counseling and support - Health and wellbeing options (including Wellhub, formerly Gympass) - Mental health support and coaching available - Drive your development through our training platform and biannual peer-to-peer review