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👋
David Andrés Herrera Sierra
Full-Stack AI Automation Engineer • Founder-Facing Builder
I help founders and growing businesses ship AI-powered systems — from production web apps and AI agents to CRM automation and operational workflows.
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⚡ What I do
- 🤖 AI agents & integrations (Claude API)
- 🖥️ Full-stack web apps (Next.js, React, Tailwind)
- 🔁 Automations (Make, n8n, Zapier)
- 📊 CRM systems (GoHighLevel, HubSpot, Airtable)
🎯 Ideal for
- Founders and small teams scaling fast
- Remote-first, async environments
- Teams that need both code and automation
📍 Based in
Bogotá, Colombia (UTC-5)
📊 Stack Overview
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🤖
AI agents built & deployed to production
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🖥️
Full-stack SaaS platforms in active development
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⚙️
Multi-account CRM systems audited & automated
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🌐
100% remote delivery
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🧩 About
I'm a full-stack AI automation engineer focused on building real systems that run businesses — not just connecting tools, but writing the code and architecture behind them.
- ✅ Comfortable across the full stack: frontend (Next.js/React), backend/APIs, databases, and deployment
- 🤖 Build custom AI agents with the Claude API — not just no-code automations
- 🧰 Practical workflows over complicated tooling
- 🧼 Clean documentation so teams can move fast without me
💼 Background
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🎙️
From Operations to Builder
Started by identifying repetitive, time-consuming workflows in fast-paced operational environments — then taught myself to automate them. That instinct for spotting inefficiency evolved into a full-stack skill set: building the automations, AI agents, and applications that eliminate that work entirely.
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- 🛠️ Self-taught builder — transitioned from support ops into automation, then into full-stack development (Next.js, React, AI agents)
- 🚀 From automations to applications — started with no-code workflows (Make, n8n, Zapier), now build production web apps and custom AI agents with the Claude API
- 🗣️ Bilingual professional — native Spanish, professional English, comfortable in client-facing technical roles
- 🌐 Remote-ready — fully async capable, overlap-friendly with US/Canada time zones from Bogotá (UTC-5)