Marcelo C. Plaza
Hands-on Agentic Workflow Builder, Full-Stack Developer (Next.js / TypeScript / Supabase), and Judicial Digital Forensics Expert. I combine foundational enterprise IT discipline (IBM, Sun Microsystems, HP) with modern Spec-Driven AI Development, multi-agent orchestration, and self-hosted Linux/Docker infrastructure.
The AI Portal | Modular Monolith
A production multi-tenant engineering laboratory built from scratch using Next.js 16 App Router, TypeScript, and self-hosted Supabase. Designed to demonstrate practical execution across database isolation (RLS), token cost governance, PostGIS geospatial pipelines, and multi-agent workflows.
OPEN ARCHITECTURE CASE STUDY & LIVE DEMOGoverned via 20+ domain SKILL.md playbooks, PORTAL_TRUTH.md schema contracts, and strict TypeScript verification (tsc --noEmit).
Domain-prefixed PostgreSQL tables protected by Row-Level Security (RLS) alongside a server-side token usage and quota ledger.
Includes multi-document Legal/Due Diligence analyzers, Gemini Live WebSocket voice agents, and WayLine 60 FPS PostGIS vector routing.
Under The Hood
Every application and workflow runs on self-hosted Linux VPS infrastructure managed via Docker and Coolify, pairing cloud LLM APIs with local GPU inference (Ollama, LM Studio, ComfyUI).
Strict multi-tenant data isolation enforced directly in PostgreSQL.
Gemini 2.5 Flash cloud harnesses + local Ollama/ComfyUI pipelines.
Self-Hosted Deployment
Production Stack
Core Execution Pillars
AI-Native Full-Stack & Agentic Systems
Building modular web applications and multi-agent pipelines (ReAct, HITL, MCP, RAG, structured JSON outputs) with Next.js, TypeScript, Python, and Supabase.
Local AI & n8n Workflow Automation
Wiring cost-efficient automation pipelines combining n8n, local LLMs (Ollama, LM Studio) for prompt refinement, ComfyUI node APIs, and headless WordPress REST APIs.
Judicial Forensics & Enterprise Governance
15+ years conducting digital forensic investigations for the Brazilian judicial system, backed by 18 years in enterprise IT delivery at IBM, Sun Microsystems, and HP.
Automated Publishing Pipelines
Live proof-of-work feeds generated via n8n workflows, local LLMs (Ollama / LM Studio), ComfyUI image synthesis, and the WordPress REST API.
Live WP REST API Sync
Ready to contribute & ship.
Available for remote AI Engineering, Agentic Workflow Automation, and Full-Stack Development roles (EU Citizen / CET & EST overlap). Fluent in English, Spanish, and Portuguese.
