Moving from brute-force scaling to resilient engineering. How we implemented Redis, Circuit Breakers, and Node.js Clustering to stabilize the platform and reduce infrastructure costs by 60%.

A deep dive into debugging a high-traffic Node.js crashloop. How we diagnosed a 'Fan-Out' architecture issue that amplified DDoS attacks against our own backend, threatening our availability.

Learnings from instrumenting Prometheus in NodeJS applications and how it should be done in 2025+.

Our journey modernizing Germany's largest classifieds site, evaluating Next.js, Deno/Fresh, and Astro, and why Astro's islands were the right choice for our scale and challenges.

Quantifying the cost savings and developer productivity gains achieved by optimizing our CI/CD pipeline.

Reduce CI build times by optimizing the build process and Docker image creation for a massive Next.js application. Learn how we achieved a 9-minute CI pipeline!

Delving into memory management and Jest worker optimization to further tame the CI beast and uncover hidden performance bottlenecks.

How we slashed CI build times and empowered a team of 100+ developers by tackling performance bottlenecks in a massive Next.js application.

Analysis, diagnostic, and fix of a performance problem in a NextJS Application.

A small essay about when you could consider yourself a good software developer.