César D. Velandia

A catalog of tools AI engineers use for fine-tuning, serving, frameworks, model compression and MLOps, last updated in March 2025.

Associative thinking creates webs instead of ladders

Practice questions with answers for AWS security exam preparation, grouped by domain, starting with infrastructure security.

This week I was asked a really fundamental question and I totally flunked. I didn't grasp its importance and here is my attempt to correct that mistake: What advice would

Challenges of securing containers and Kubernetes, with recommendations for policies, tooling, image integrity, and runtime protection.

What cloud security posture management is, the challenges it faces, and recommendations for applying it.

Security-related AWS re:Invent talks from 2018 to 2020, embedded as videos.

A one-page map of the AWS Well-Architected Framework pillars and their design principles.

A reading list of reports and reference architectures on cloud native security, from Snyk, Aqua and IBM.

I took the daily stoic challenge this summer. It is a 10-day program developed by author Ryan Holiday that will encourage you to implement ideas from the stoics into your

Notes on preparing for the Certified Kubernetes Administrator (CKA) exam: courses, practice resources, and tips before and during the exam.

Docker basics: images and containers, common commands, running and building images, and tools for working with them.