David Aramayo
Backend & AI Automation Engineer
I build software that connects APIs, data, AI and infrastructure — backend systems, intelligent automations, and complete solutions deployed end-to-end on real infrastructure.
01
About
I started in backend engineering building APIs and data-driven systems with Python, PostgreSQL and SQL Server. As systems grew more complex, I moved into automating processes with AI — AI Agents, RAG pipelines and LLM-powered applications that connect internal tools, enterprise systems and external services.
Today I'm deepening my work in infrastructure and DevOps, deploying and operating complete solutions on Linux, Docker, VPS and Dokploy with CI/CD pipelines through GitHub Actions. My focus is building and shipping systems end-to-end — not just interfaces, but the full stack that makes them run.
- Backend & APIs
- AI Agents & RAG
- Infrastructure & DevOps
- End-to-end systems
02
What I Build
Three areas that come together in every system I ship.
Backend Engineering
APIs and services with Python, FastAPI and Django. Relational data modeling, integrations and systems built to run in production.
- REST & APIs
- Python / FastAPI
- System integrations
AI & Automation
AI Agents, RAG pipelines and LLM applications that automate real business processes and connect data to decisions.
- AI Agents
- RAG & LLMs
- Process automation
Infrastructure & DevOps
Deployment and operations on Linux, Docker, VPS and Dokploy with CI/CD through GitHub Actions. Building and shipping complete systems.
- Docker & VPS
- Dokploy
- CI/CD pipelines
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Projects & Experiments
Backend systems, AI automation and technical exploration — from shipped solutions to new ideas.
Systems, not just interfaces — backend, AI automation and complete end-to-end solutions.
Cotorra
Development of a web and mobile platform for the management of and collaborative access to university resources. The system supports different types of users, as well as mechanisms for content management and moderation.
Photo Recognition
A Python desktop application that finds participant numbers in photos using local OCR (RapidOCR), Ollama, OpenAI, Gemini, or an OpenAI-compatible vision service.
WhatsApp Contact Management
An API project developed with FastAPI to manage WhatsApp contacts and chats in order to integrate them with n8n agents. It includes features for managing accounts and labels, as well as for linking them to chats.
Metalnor SIM
Comprehensive Modular System (SIM) for Metalnor. It integrates the comprehensive management of all areas—including HR, accounting, logistics, purchasing, and branch offices, among others—into a single platform.
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Tech Stack
Grouped by category — the tools I use to build and ship.