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Alejandro Cordova
Alejandro CordovaSoftware Engineer20 years of experience
Expertise

Alejandro is a senior software engineer with 20+ years of experience, including 15 years specializing in Drupal. He oversees the launch and implementation of high-traffic sites at Pinterest, combining deep technical and content expertise with project management.

Articles published 42 weeks since last publication
Abstract illustration representing RAG application architecture, retrieval layers, performance evaluation, and system optimization.
Software Development

Learn how to build a RAG application: vector database and embedding model choices, chunking, retrieval, and evaluation methods that keep LLM answers grounded.

By Alejandro Cordova

19 min read

Large language model (LLM) architecture illustration showing AI processor, neural network layers, and token processing pipeline used to power generative AI systems.
Technology

Systems-level overview of large language models for engineering leaders: how they work, where they fit, and the risks you need to plan for.

By Alejandro Cordova

13 min read

Illustration of layered data architecture showing structured datasets used to train and customize large language models on proprietary business data.
Software Development

Decide when to use off-the-shelf LLMs, when RAG on your data is enough, and when fine-tuning or full training is worth the cost, risk, and overhead.

By Alejandro Cordova

12 min read

Technology - Choosing the Right
Technology

A practical framework for selecting an enterprise CMS. Includes a decision matrix, migration checklist, and analysis of TCO, integration, and security.

By Alejandro Cordova

12 min read