https://hamdimechelloukh.com/en/blog My articles on data engineering, cloud and software architecture. en https://hamdimechelloukh.com/blog/investment-bot-what-llms-taught-me https://hamdimechelloukh.com/blog/investment-bot-what-llms-taught-me Wed, 17 Jun 2026 00:00:00 +0000 How a portfolio-monitoring bot taught me how LLMs really work: zero-temperature non-determinism, determinism in the data, and Condorcet-style ensemble voting. https://hamdimechelloukh.com/blog/flink-kafka-iceberg-streaming-pipeline https://hamdimechelloukh.com/blog/flink-kafka-iceberg-streaming-pipeline Tue, 31 Mar 2026 00:00:00 +0000 An end-to-end streaming pipeline on the Olist dataset: revenue aggregation, CEP anomaly detection, per-minute KPIs, Iceberg data lake on MinIO — and the problems you don't see coming. https://hamdimechelloukh.com/blog/open-source-vendor-neutral-lakehouse https://hamdimechelloukh.com/blog/open-source-vendor-neutral-lakehouse Fri, 20 Mar 2026 00:00:00 +0000 Why and how I designed a lakehouse with no vendor lock-in: Kafka, Spark, Iceberg, MinIO, Great Expectations and Terraform. https://hamdimechelloukh.com/blog/multi-llm-framework-agenticdev https://hamdimechelloukh.com/blog/multi-llm-framework-agenticdev Thu, 19 Mar 2026 00:00:00 +0000 How I designed a pipeline of 4 specialized LLM agents with LangGraph, prompt caching and automatic fix loop. https://hamdimechelloukh.com/blog/production-manager-lessons-learned https://hamdimechelloukh.com/blog/production-manager-lessons-learned Thu, 19 Mar 2026 00:00:00 +0000 What I learned stepping away from code to manage sales data production — alerting, postmortems, crisis communication, and why I went back to engineering.