Principal Software Engineer Core Platform & Growth / Lounge by Zalando
Principal Software Engineer at Zalando's Lounge, shaping core growth, data, and AI infrastructure in Berlin.

Berlin, Germany · Founded 2008 · 5000+ staff
Zalando is a leading European online platform for fashion and lifestyle, connecting customers, brands, and partners through a curated selection of products and personalized experiences.
Roles based in: Ansbach, Berlin, Bucharest, Dortmund, Dublin
Builds in: E-commerce · Platform · AI/ML · Logistics · B2B SaaS
Seniority: 5 Mid-level · 19 Senior · 4 Lead · 6 Principal
Hiring engineering roles here since April 2026
Curated from live Zalando postings. Click any role for the full brief.
Principal Software Engineer at Zalando's Lounge, shaping core growth, data, and AI infrastructure in Berlin.
Software Engineer at Zalando's Logistics Network Planning team to develop and implement forecasting and planning software.
Senior Fullstack Engineer at Zalando building core features for the Boards team, focusing on scalable backend services and responsive web interfaces.
Junior Software Engineer at Zalando Payments in Dortmund designing and operating core APIs for the fintech industry.
Senior Principal Software Engineer at Zalando in Berlin, leading complex technical initiatives and advancing AI capabilities across the group.
Senior Frontend Software Engineer at Zalando Lounge responsible for shaping customer-facing experiences like Product Details Page and My Account.
Senior Fullstack Engineer at Zalando building high-performance Microservices for the ZEOS B2B Platform in Berlin.
Own ML systems for Lounge by Zalando, scaling campaign personalization across channels using Spark/Databricks.
Build and ship personalized landing pages for millions of users, owning Kotlin BFF and React frontend.
Build reliable transactional data integration pipelines using Java, Kafka, Spring, and AWS for 60M+ users.
Build reliable transactional data integration solutions using Java, Spring, Kafka for 62M+ users.
Develop high-performance S/4HANA ERP solutions using ABAP Cloud (RAP) and SAP CAP for Zalando's global platform.
Architect cloud-native ERP extensions using SAP CAP, Node.js, and CDS for Zalando's 62M users.
Design scalable data products for Zalando's 50M+ users using Python, Spark, AWS, and Databricks.
Build internal applications for the fulfillment network using TypeScript and React, optimizing 185M annual orders.
Software Engineer at Zalando joining the ZEOS Outbound team to build high-performance microservices for article liquidation.
Design and scale Zalando's ML Platform infrastructure powering AI experiences using Kubernetes and distributed systems.
Drive algorithmic research-driven software development for logistics systems processing millions of customer orders at Zalando in Berlin.
Build a Data Lakehouse from scratch for Tradebyte, a Zalando company, empowering e-commerce leaders with reliable data insights.
Architect Zalando's B2B platform, shaping the technical landscape for partner integrations and internal products.
Build and scale partner-facing web applications for Zalando's B2B platform using React and TypeScript.
Build intuitive B2B platform UIs for Zalando's partner ecosystem using React and TypeScript.
Build and maintain ad platform infrastructure for Zalando's e-commerce marketing services, connecting millions of customers with brands.
Build Zalando's AI-driven search engine for 62M+ customers across 29 markets.
Build a best-in-class B2B portal for Zalando partners, leading a team of engineers.
Build large-scale recommender systems for Lounge by Zalando's personalization efforts.
Build and scale ML infrastructure for Zalando's AdTech platform, personalizing fashion e-commerce.
Build a high-performance B2B platform API for Zalando's partner ecosystem.
Architect mission-critical backend microservices for Zalando's ZEOS B2B platform.
Build and scale the advertising campaign platform for fashion brands at Zalando.
Lead the Content engineering team powering partner ad formats at Zalando Marketing Services.
Build scalable transport optimization software at Zalando Logistics.
Engineer the partner integration layer for ZEOS Logistics platform at Zalando.
Lead Demand Tech engineers powering AI-driven personalisation at Lounge by Zalando.
Lead AI innovation, building scalable LLM-powered products for Zalando's consumer and internal journeys.
Architect and evolve Zalando's large-scale logistics platforms for 52M+ European customers.
Build fraud detection ML systems for Zalando's billions in payments.
Lead SAP Analytics team to build financial insights for Zalando's fashion ecosystem.
Build a centralized Data Lakehouse from scratch for Zalando Group's e-commerce players.
Build a real-time recommendation engine for Zalando's Ad Tech platform.
We haven't seen these on Zalando's site in over 60days. They may already be filled — check the company's own careers page before applying.
Build high-performance Java microservices for ZEOS B2B Platform at Zalando in Berlin.
Software Engineer at Zalando Payments in Berlin focusing on SRE for mission-critical payment microservices.
Develop high-performance Java fullstack solutions using SAP ABAP Cloud and Node.js to scale Zalando's ERP systems in Bucharest.
Build logistics systems for millions of items at Zalando, optimizing delivery and returns.
Build high-performance B2B platform services for Zalando partners, processing thousands of events per second.
Build secure, engaging payment APIs for Zalando's fashion retail customers.
Build and scale AdTech ML infrastructure for Zalando's fashion partners.
Build high-performance APIs for Zalando's Lounge Discover, impacting millions of users' fashion discovery.
Build and maintain Zalando's Partner Tech services for fashion assortment management.
Build and optimize Tradebyte's global engineering platform for Zalando's e-commerce leaders.
Build fulfillment core inventory systems for 50M customers at Zalando.
Shape modern e-commerce frontend architecture for brands and retailers at Tradebyte.
Drive security controls and GRC engineering at Zalando Payments.
Architect retail outlet systems end-to-end at Zalando Stores & Clearance.
Build and operate business-critical backend APIs and web applications for Zalando partners.
Build Europe's leading logistics platform for Zalando's B2B unit.
Build Zalando's React Native architecture for 50M+ customers, tackling complex migration challenges.
Build and maintain backend microservices for Zalando's partner business, integrating ML insights.
Build and improve Zalando's data platform for fashion brands and retail stores across Europe.
No longer open on Zalando's site. Kept for reference — saved archived roles stay in your dashboard.
Build and operate business-critical backend APIs for Zalando partners, processing tens of thousands of events per second.
Architect and evolve Zalando's logistics platforms, driving innovation with AI and automation for 52M+ customers.
Build ML/software for payment risk and fraud detection at Zalando.
Build Zalando's B2B Logistics Platform connecting e-commerce to robust logistics.
Lead SAP Analytics team, building financial insights for Zalando's fashion ecosystem.
Build scalable backend microservices for Zalando's partner business, integrating ML insights.
Lead Data Engineers building a Centralized Data Lakehouse from scratch for Zalando.
Build a real-time recommendation engine for Zalando's Ad Tech platform.
Build and improve Zalando's data platform for fashion brands and retail stores across Europe.