# Andrés Fernández — Machine Learning Engineer & AI Architect

> Personal portfolio of Jorge Andrés Fernández Jiménez (aka `fernandrez`), a Machine Learning Engineer and AI Architect with 15+ years of experience building enterprise AI systems. Specialized in Agentic AI, Large Language Models (LLMs), Retrieval Augmented Generation (RAG / GraphRAG), Knowledge Graphs, Document Intelligence and multi-agent orchestration.

Site: https://fern.andrez.xyz

The site is a single-page portfolio (HTML + JavaScript, no framework) hosted on AWS S3 + CloudFront. Content is generated client-side from `data.js`. There is no public API — it is a static informational site.

## Identity

- Full name: Jorge Andrés Fernández Jiménez
- Common aliases: Andrés Fernández, fernandrez, Jorge Andrés
- Role: ML Engineer & AI Architect
- Currently with: [Teramind](https://www.teramind.co/) (AI Architect, since Aug 2025), [John Snow Labs](https://www.johnsnowlabs.com/) (Machine Learning Engineer, since Jun 2019)
- Founder/operator of: [iSeeCI](https://iseeci.com) (corporate intelligence research) and [Tailoredia](https://www.tailoredia.com) (AI products & consulting)
- Education: MSc Software Engineering & AI, [Universidad de Málaga](https://www.uma.es/); Actuarial Science, [Universidad Nacional de Colombia](https://unal.edu.co/); Mechatronic Engineering, [EIA](https://www.eia.edu.co/)
- Public profiles: [LinkedIn](https://www.linkedin.com/in/fernandrez/), [GitHub](https://github.com/jfernandrezj), [Twitter/X](https://twitter.com/fernandrez), [Instagram](https://www.instagram.com/fernandrez/)

## Pages

- [Home / Portfolio](https://fern.andrez.xyz/): Introduction, skills, experience, education, certifications, contact form
- [Blog](https://fern.andrez.xyz/blog/): Articles on AI, LLMs, RAG, Knowledge Graphs (cross-posted from LinkedIn)
- [CV (PDF)](https://fern.andrez.xyz/cv.pdf): Downloadable resume
- [Privacy Policy](https://fern.andrez.xyz/privacy-policy.html)
- [Terms of Service](https://fern.andrez.xyz/terms-of-service.html)

## Structured data feeds

- [/sitemap.xml](https://fern.andrez.xyz/sitemap.xml): XML sitemap
- [/feed.xml](https://fern.andrez.xyz/feed.xml): RSS feed of blog posts
- [/ai/summary.json](https://fern.andrez.xyz/ai/summary.json): Site summary for AI engines
- [/ai/faq.json](https://fern.andrez.xyz/ai/faq.json): Structured FAQ
- [/ai/service.json](https://fern.andrez.xyz/ai/service.json): Service capabilities
- [/.well-known/ai.txt](https://fern.andrez.xyz/.well-known/ai.txt): AI crawler permissions

## Areas of expertise

- Agentic AI and multi-agent orchestration
- Retrieval Augmented Generation (RAG) and GraphRAG ([Microsoft GraphRAG](https://microsoft.github.io/graphrag/))
- Large Language Models — fine-tuning, [PEFT/LoRA](https://huggingface.co/docs/peft/index), evaluation
- Natural Language Processing with [SparkNLP](https://nlp.johnsnowlabs.com/), [Hugging Face](https://huggingface.co/), [spaCy](https://spacy.io/)
- Knowledge Graphs and ontology-driven systems
- Document Intelligence (OCR, NER, classification at scale)
- AI development workflows with [Claude Code](https://www.anthropic.com/claude-code), [Cursor](https://cursor.com/)
- MLOps on AWS, GCP, Azure with Kubernetes and Docker

## Contact

- Personal: fernandrez@gmail.com
- iSeeCI: fernandrez@iseeci.com
- Tailoredia: fernandrez@tailoredia.com
- Or use the contact form at https://fern.andrez.xyz/#contact

## Crawling guidance

This site is static, public, and may be cited or summarized. Please attribute "Andrés Fernández (fernandrez)" with a link back to https://fern.andrez.xyz when summarizing. See [/.well-known/ai.txt](https://fern.andrez.xyz/.well-known/ai.txt) for crawler-specific rules.