Portrait of John Fritzel Macalisang

John Fritzel Macalisang

AI Solutions Architect

Building automation systems and data pipelines that eliminate repetitive work and connect business-critical tools.

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Selected Work

View all 4 projects

SupportRAG

An AI customer-support email agent on n8n that drafts a policy-grounded reply to every email, then waits for human approval on Telegram before anything is sent.

  • n8n
  • OpenAI
  • RAG
  • Qdrant
  • Docker
View case study

JustCall Campaigner

A desktop app for running bulk SMS and MMS campaigns through JustCall. It personalizes every message, paces sends to stay inside API rate limits, and posts a Slack recap.

  • Python
  • JustCall API
  • Pipedrive CRM
  • Google Sheets
  • Slack
View case study
Explore my Data Engineering & Analytics projects here

Tools

Languages

  • Python
  • SQL
  • JavaScript

Automation

  • n8n
  • Power Automate
  • Zapier
  • API Integration

Analytics & Tools

  • Power BI
  • Git
  • Docker

GitHub Activity

@johnfritzel on GitHub
View my activity on GitHub →