Search Quality Assurance with AI as a Judge
Deep dive into how Zalando builds a search quality assurance framework with LLM-as-a-judge to evaluate the search... Read more...
Tao Ruangyam
Senior Software Engineer
Mar 17
2026
Why We Ditched Flink Table API Joins: Cutting State by 75% with DataStream Unions
The beauty of a high-level abstraction is that it lets you focus on the "what" rather than the "how." In the world... Read more...
Maryna Kryvko
Senior Software Engineer
Mar 04
2026
The Day Our Own Queries DoS’ed Us: Inside Zalando Search
Once upon a time, during a normal Sunday, our team ran into an unexpected challenge: an Elasticsearch cluster that... Read more...
Maryna Kryvko
Senior Software Engineer
Ivan Potapov
Senior Software Engineer
Dec 17
2025
Paper Announcement: Leveraging Multimodal LLMs for Large-Scale Product Retrieval Evaluation
Sharing our latest research paper on leveraging LLM-as-a-Judge for scalable, multimodal relevance assessment in... Read more...
Kasra Hosseini
Senior Applied Scientist
Nov 15
2024
The Modern Architecture of Search
Discussing the components needed to solve the problems of IR in web platforms. Read more...
Alaa Elhadba
Search Engineer
Dr. Mikio Braun
Delivery Lead – Recommendation and Search
Jun 27
2017
Talking to Elasticsearch
Good communication between applications and clusters is an essential requirement for scaling. Read more...
Alaa Elhadba
Search Engineer
Dec 14
2016
A Closer Look at Elasticsearch Express
An applicance allowing teams to serve and retrieve data at a large scale, used in production. Read more...
Alaa Elhadba
Search Engineer
Nov 24
2016