Client-Side Load Balancing at a Million Requests Per Second
How we built an in-process client-side load balancer for a million requests per second of internal fan-out traffic,... Read more...
Conor Gallagher
Senior Principal Engineer
Jun 23
2026
Rejecting Invalid Ingress Routes at Apply Time
How Zalando used Skipper as a validating admission webhook to reject invalid filters and predicates at apply time,... Read more...
Veronika Volokitina
Software Engineer
Apr 09
2026
Scaling Beyond Limits: Harnessing Route Server for a Stable Cluster
A proxy server contributing to a stable Kubernetes cluster and scaling ingress controller. Read more...
Mustafa Abdelrahman
Software Engineer
Feb 17
2025
Failing to Auto Scale Elasticsearch in Kubernetes
A story of operational failure in large scale Elastisearch installation including the root cause analysis and... Read more...
Juho Vuori
Senior Software Engineer
Jun 21
2024
Maps with PostgreSQL and PostGIS
Learn how to stream geodata from PostGIS to your browser Read more...
Felix Kunde
Software Engineer
Dec 02
2021
Launching the Engineering Blog
We recently re-launched Zalando's Engineering Blog. Learn how we have set up a blog with a Lighthouse score of 100. Read more...
Henning Jacobs
Senior Principal Engineer
Jul 01
2020
PgBouncer on Kubernetes and how to achieve minimal latency
Experiments with connection poolers on Kubernetes for Postgres Operator Read more...
Dmitrii Dolgov
Software Engineer
Jun 24
2020
Open Source: June Updates - New releases, continue to foster diversity and inclusion in tech
This is a recap of open source activities and development at Zalando in the month of June. Read more...
Hong Phuc Dang
InnerSource Manager
Jul 15
2019
How we release open source projects
Zalando has over 200 open source projects on Github, with about two new proposed projects a month. Over the years... Read more...
Per Ploug
Open Source Community Manager
May 27
2019
Back-Pressure Strategy for a Sharded Akka Cluster
AWS SQS polling from sharded Akka Cluster running on Kubernetes Read more...
Rohit Sharma
Software Engineer
May 09
2019