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Aarón García Marrero

Senior Platform & AI Engineer · Las Palmas, Canary Islands 🇪🇸 · UTC+0/UTC+1 (full overlap with Western Europe)

LinkedIn Email Open to work


What I do

I build the infrastructure and AI systems that engineering teams rely on daily — from GitOps platforms that migrate 150-app ecosystems to RAG services that evolve with every new model generation.

  • Platform Engineering — GitOps with ArgoCD & Kubernetes, internal deployment platforms, IaC with Terraform on Azure
  • AI Engineering — Production RAG systems (GPT-3 → GPT-5 evolution), LLM provider abstraction, vector stores, OpenTelemetry instrumentation
  • Developer Experience — Internal tooling used by 100+ devs, mentorship programs, technical workshops

Featured projects

Repo What it demonstrates
OmniSearch Production RAG system — FastAPI, Qdrant, LangChain, multi-provider LLM (OpenAI + Claude), PDF/Notion/Confluence ingestion
Pregonero LLM-filtered RSS digest bot — TypeScript/Bun, Groq, Telegram, GitHub Actions scheduler
gitops-reference-platform (coming soon) ArgoCD app-of-apps, multi-env Helm, Kubernetes bootstrapping
terraform-azure-modules (coming soon) Reusable Terraform modules for Azure (AKS, VNet, Redis, DB)

Stack

Platform     Kubernetes · ArgoCD · GitOps · Helm · Terraform · Azure
AI / ML      RAG · LangChain · Qdrant · OpenAI APIs · Anthropic APIs · LLMs
Backend      Python · FastAPI · C# · Bash
Observability OpenTelemetry · Prometheus · Grafana
CI/CD        GitHub Actions · Docker · Docker Compose

A few numbers

  • 🚀 Reduced company-wide API & web time-to-market by 60% with an internal deployment platform
  • 🤖 Evolved a production RAG chatbot from GPT-3 through GPT-5 — live 24/7 on Microsoft Teams
  • 📦 Migrated 20+ applications to GitOps (ArgoCD/Kubernetes) out of a 150-app ecosystem
  • 👨‍🏫 Mentored 6 interns into full-time engineers at AIDA

Always building something. Always shipping.

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