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stefan-mcf/README.md

Stefan McFeeters

Automation and integration developer based in Melbourne, Australia.

I work across backend services, AI support systems, CRM and lead operations, workflow platforms, and connected field systems. My main tools are Python, TypeScript, FastAPI, PostgreSQL and AWS, alongside Zendesk, Jira, HubSpot, Airtable, Make and n8n.

I’m currently open to automation, integration, backend and forward-deployed engineering roles.

Selected projects

Zendesk AI Support Copilot

Human-reviewed support system with grounded knowledge retrieval, cited private suggestions, safety gates, a Zendesk-to-Jira engineering handoff, a 40-case evaluation suite and Terraform infrastructure for AWS.

Python FastAPI React PostgreSQL AWS Bedrock Zendesk Jira

Conversion Measurement and Inbound Lead System

Live GTM and GA4 measurement connected to HubSpot, Airtable and Make through one stable submission identifier. Includes a Playwright harness that caught and retained a duplicate conversion-event regression.

Playwright GTM GA4 HubSpot Airtable Make

Precision Residential Construction Website

Live client website for a Geelong residential builder, with responsive service and project content, direct contact paths and structured quote intake.

HTML CSS JavaScript n8n

Automation Debugger

Python toolkit for diagnosing failed Zapier, Make, n8n and webhook runs. It classifies the failure, separates repair from replay and blocks unsafe duplicate or mismatched operations.

Python FastAPI pytest Docker

Operations and workflow systems

Project Focus
RFID Carwash Subscription Access System Customer subscriptions, RFID tag registration, edge access decisions, operator controls and PLC integration.
Airtable and Make Opportunity Pipeline Owner-approved intake, stable-key duplicate control, exception routing and accepted project handoff.
Conversion Measurement and Inbound Lead System Live GTM and GA4 measurement, HubSpot intake, Airtable and Make routing, human qualification and exactly-once event QA.
HubSpot Lead-to-Deal CRM Linked company, contact and deal records with a seven-stage operating pipeline and idempotent lifecycle controls.
n8n Service Lead Routing Importable 16-node workflow covering accepted, duplicate, invalid, review and integration-exception outcomes.
Airtable Coaching Program Delivery Hub Linked participants, coaching plans and sessions with owner and role-specific Airtable Interfaces.
Zendesk to Jira Support Escalation Guarded provider-native trigger, webhook mapping and destination reconciliation.

Supporting tools

Repository Focus
Shopify Revenue Leak Auditor Browser-based product-page audits with evidence capture, weighted findings and client-ready Markdown and HTML reports.
API Webhook Bridge Contract validation, configurable field mapping, idempotency, audit records and dead-letter handling.
Sheets Airtable Sync Row normalisation, reconciliation, exception routing and Airtable upsert planning.
Invoice Router Invoice extraction, validation, review routing and accounting export preparation.
Review Router Typed policy gates, confidence metadata and human review through CLI and API surfaces.
Automation Kit Reusable Python, FastAPI, OpenAPI, Docker and low-code workflow patterns.
Browser Research Browser-based source extraction, evidence scoring and structured research output.

Portfolio · LinkedIn · Email

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  1. zendesk-ai-support-copilot zendesk-ai-support-copilot Public

    Human-reviewed Zendesk support copilot with grounded retrieval, safety gates, Jira handoff, evaluation and AWS infrastructure.

    Python

  2. automation-debugger automation-debugger Public

    Python toolkit for diagnosing automation failures with deterministic classification, replay controls, and structured handover reports.

    Python

  3. conversion-measurement-inbound-lead-system conversion-measurement-inbound-lead-system Public

    Live GTM/GA4, HubSpot, Airtable and Make lead path with stable IDs, human qualification and Playwright event-quality checks.

    JavaScript

  4. shopify-revenue-leak-auditor shopify-revenue-leak-auditor Public

    Browser-based Shopify revenue-leak auditor that generates client-ready ecommerce audit reports.

    Python

  5. airtable-make-opportunity-pipeline airtable-make-opportunity-pipeline Public

    Airtable opportunity and delivery system with bounded Make routing, duplicate control, exceptions and approved project handoff.

    JavaScript

  6. api-webhook-bridge api-webhook-bridge Public

    FastAPI webhook integration bridge with schema validation, field mapping, idempotency, audit records, and dead-letter handling.

    Python