Senior Software Engineer - Lounge Discover Job at Zalando (Berlin)

Job Description

The Lounge Discover squad is the gateway to Lounge customer experience. As a cross-functional team, we are responsible for building the client-facing applications and the high-performance APIs that power them. Our mission is simple but ambitious: to make our vast fashion and lifestyle catalog effortlessly navigable. We focus on discoverability and search, ensuring that every user finds their next favorite item with ease. As a Senior Backend Software Engineer, You will act as a technical owner for key discovery services, driving architecture decisions and leading complex initiatives from design to production Your work directly impacts how millions of users discover products and drives key business metrics such as engagement and conversion. You will collaborate closely with Product Managers, Designers, and Frontend Engineers to turn complex discovery challenges into elegant, scalable backend solutions.

Job Responsibility

Lead the creation of Technical Design Documents (TDD) and define robust architectures that support high-traffic discovery features and complex catalog structures
Work daily with Product Managers, Product Analytics, Designers, and Frontend Engineers to translate business requirements into technical reality
Develop and maintain high-availability APIs and microservices using Java, ensuring they are performant and resilient
Embrace an AI-first development approach, utilizing AI-powered tools to enhance efficiency and accelerate innovation in our discovery features
Design and optimize search systems (e.g. Elasticsearch, vector search), balancing relevance, latency, and scalability
Tackle complex discovery challenges such as real-time catalog updates, search relevance optimization, and high-throughput API design at scale
Design and optimize data models across a diverse stack including PostgreSQL, DynamoDB, and caching layers like Redis (Valkey)
Take ownership of the full software development lifecycle, including a voluntary 24/7 on-call rotation

Requirements

Extensive professional experience with Java and building distributed systems at scale
Proficient with Elasticsearch and hands-on experience with both NoSQL (DynamoDB) and Relational (PostgreSQL) databases
Comfortable writing detailed architecture proposals and mentoring more junior engineers through code reviews and design feedback
Takes an active interest in Product and user behavior to help shape the roadmap
Actively drives alignment across teams and challenges decisions constructively
Understanding of the importance of system health and willingness to contribute to voluntary on-call rotation

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 60% remote per week
Work from abroad for up to 30 working days a year
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

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Senior Software Engineer - Lounge Discover

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