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Jaime Hernández
AI & Backend Engineer
Professional Summary / Resumen Profesional
Backend Engineer with 8+ years of experience building scalable systems for retail and enterprise. Specialized in AI-powered automation, developing agents, RAG systems, and intelligent workflows. Expert in Go, Python, PostgreSQL, and cloud-native architectures on GCP and AWS. Track record of handling 50M+ SKUs across multi-country deployments.
Core Competencies / Competencias Principales
AI & Machine Learning
- • LangChain, LangGraph, CrewAI
- • Claude API, Ollama, MCP
- • RAG systems & vector databases
- • Autonomous agents development
Backend & Systems
- • Go, Python, TypeScript
- • PostgreSQL, Oracle, Redis
- • Microservices architecture
- • API design (REST, GraphQL)
Cloud & DevOps
- • GCP (Cloud Run, BigQuery, Logging)
- • AWS, Azure
- • Docker, Kubernetes
- • CI/CD pipelines
Data Engineering
- • BigQuery optimization
- • Data reconciliation pipelines
- • Financial month-end processes
- • Query performance tuning
Professional Experience / Experiencia Profesional
Founder & Developer
Vocari.cl — AI Vocational Platform
- • Building AI-powered vocational guidance platform for Chilean students
- • Implementing RAG systems with LangChain and Claude API
- • Designed scalable cloud architecture on GCP
Backend Engineer
Falabella Chile — Retail & E-commerce
- • Built inventory and provisioning systems for 50M+ SKUs across 5 countries
- • Implemented data reconciliation pipelines (BigQuery ↔ Oracle EBS)
- • Optimized critical N+1 queries reducing execution time by 70%
- • Developed automated month-end close processes saving 15+ hours/month
- • Reverse-engineered coupon/promotion systems for integration
Software Engineer
Enterprise Solutions
- • Full-stack web development (React, Node.js, PostgreSQL)
- • REST API design and implementation
- • Database optimization and migration
Education / Educación
Computer Science / Software Engineering
University in Chile
Notable Projects / Proyectos Destacados
AI Agent Pipeline — n8n + LangGraph
Built multi-agent workflows orchestrating Claude API, Ollama, and custom tools for automated data processing.
Retail Inventory System — Go + PostgreSQL
Designed high-concurrency inventory system handling 50M+ SKUs with SKIP LOCKED and advisory locks.
Vocari.cl — AI Vocational Guide
RAG-based vocational guidance system helping Chilean students make informed career decisions.