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// About

// ID
Portrait of John Zapanta

// Skills

  • Python
  • TypeScript
  • JavaScript
  • Node.js
  • Next.js
  • React
  • Tailwind CSS
  • Playwright
  • Flask
  • pandas
  • Docker
  • Prisma
  • PostgreSQL
  • SQLite

John ZapantaSystems & AI Engineer

I'm a systems builder focused on AI-powered automation and data intelligence. Most of my work lives in the gap between a messy operational problem and a clean, dependable system that solves it — assistants that draft and decide, pipelines that pull and reconcile data, and dashboards that surface the one thing a team actually needs to act on.

I work end to end: scoping the problem, wiring the integrations, designing the data flow, and putting it in production with the guardrails to keep it running. The stack shifts to fit the job — LLM APIs and Python for the intelligent parts, Node and Next.js for the interfaces, headless browsers and APIs for the data — but the throughline is the same: turn repetitive, error-prone work into something that runs on its own.

// Principles

How I approach the work

PRINCIPLE_01

End to end

Scope the real problem, wire the integrations, design the data flow, ship it with the guardrails to keep it running.

PRINCIPLE_02

Right tool, not favorite tool

The stack bends to the job — LLMs and Python for the thinking, Node and Next.js for the interfaces, browsers and APIs for the data.

PRINCIPLE_03

Built to run unattended

A system that needs babysitting isn't finished. The bar is reliable, observable, and safe to leave alone.

// Focus areas

What I work on

  • AI Agents & LLM Apps
  • Workflow Automation
  • Scraping & Data Pipelines
  • Market & Real Estate Analytics
  • CRM & Sales Tooling
  • Internal Dashboards & Tools