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David Campos - Blog

about technology, engineering and leadership.

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Latest posts

From Bottleneck to Multiplier

TL;DR Engineering leaders can multiply team intelligence instead of bottlenecking it. This series introduces a framework with five interconnected pillars: psychological safety, clear success criteria, intentional delegation, alignment through documentation, and evidence-driven decisions. When these work together, teams ship faster, retain top talent, and solve problems before they escalate,…

COVID-19 corpus of research articles annotated with biomedical entities

TL;DR Created a corpus of research articles related with COVID-19, automatically annotated with 10 biomedical entities of interest, namely Disorder, Species, Chemical or Drug, Gene or Protein, Enzyme, Anatomy, Biological Process, Molecular Function, Cellular Component, Pathway and microRNA.

Flexible CI/CD with Kubernetes, Helm, Traefik and Jenkins

TL;DR Let’s create a CI/CD (Continuous Integration and Continuos Deployment) solution on top of Kubernetes, using Jenkins as building tool and Traefik as ingress for flexible application deployment and routing.

Apache Cassandra with JPA: Achilles vs. Datastax vs. Kundera

TL;DR Use JPA libraries to communicate with Apache Cassandra comparing Achilles, Datastax and Kundera. The last one presents the better processing speeds with lower computational resources consumption.

Kafka streaming with Spark and Flink

TL;DR Sample project taking advantage of Kafka messages streaming communication platform using: 1 data producer sending random numbers in textual format; 3 different data consumers using Kafka, Spark and Flink to count word occurrences.

Hello World

The goal of the first post is to validate the deployment process on GitHub pages using Jekyll.