Jayson Bautista — n8n Automation Specialist

About

Who I Am

A CS student turned automation builder — obsessed with making systems that eliminate repetitive work.

I'm a Computer Science undergraduate based in the Philippines, specializing in building practical AI automation workflows using n8n. Under my brand Krumx Automation Services, I help small businesses, freelancers, and startups automate their operations — from customer support to CRM pipelines to daily reporting.

I don't just connect tools. I design systems with real business logic: intent classification, escalation paths, validation gates, and CRM logging — the kind of architecture that actually works in production.

n8n Automation AI Agent Design Prompt Engineering WhatsApp API HubSpot CRM Google Workspace Supabase Webhook Integration Slack Automation Google Drive API

Core Stack

n8n (self-hosted) Claude AI Gemini AI Meta WhatsApp API HubSpot Slack Google Sheets Google Drive Gmail Supabase Google Calendar Jotform

Work

Portfolio Projects

Five production-grade n8n automation systems — each built for a real business use case.

Reduced inbox overwhelm · Prevented missed follow-ups

AI Email Management Agent

Intelligent real-time email processing system with AI classification, smart labeling, spam detection, VIP handling with auto reply drafts, high-priority draft generation, daily summaries, weekly reports, unsubscribe recommendations, and overdue follow-up reminders.

GmailGroq AIGoogle SheetsTelegramn8n

Business Outcomes ↓ Eliminated manual email sorting ↑ Critical email prioritization ↑ Daily & weekly inbox visibility ↓ Zero missed follow-ups

AI Email Management Agent — Screenshot 1

n8n workflow (1/3) — Click to view both

Faster hiring pipeline · Consistent candidate evaluation

AI Resume Screener

Automated resume screening system that instantly downloads PDF resumes, extracts text, evaluates candidates against job requirements using AI, scores them (Hot/Warm/Cold), updates the tracking sheet, alerts HR on hot candidates, and sends automated reply emails.

Google DriveGoogle SheetsGroq AIGmailSlackn8n

Business Outcomes ↓ Eliminated manual resume review ↑ Consistent, bias-reduced scoring ↑ Instant candidate acknowledgment ↑ HR alerted only for top fits

n8n workflow

Improved cash flow · Protected client relationships

AI Invoice Follow-up Agent

Automated daily overdue invoice reminder system that calculates days overdue, generates professional AI-written follow-up emails with appropriate tone (polite/firm/final), sends them via Gmail, and logs all activity.

Google SheetsGroq AIGmailJavaScriptn8n

Business Outcomes ↓ Eliminated manual payment chasing ↑ Tone-escalating reminders (polite → final) ↓ Reduced average days overdue ↑ Full audit trail per invoice

n8n workflow

91% inquiries resolved without staff · <30s response time

WhatsApp AI Customer Support Agent

Full AI-powered support system with intent classification, dual-path escalation, customer lookup, validation gates, HubSpot CRM logging, and rate limiting. Response time dropped from 4 hours to under 30 seconds — 91% of inquiries resolved without human intervention.

WhatsApp APIGemini AIGoogle SheetsHubSpotSlackn8n

Business Outcomes ↓ 4hr → <30s response time ↑ 91% inquiries resolved by AI ↑ 24/7 support coverage ↑ CRM auto-updated per conversation

n8n workflow

28% leads fast-tracked · Response in under 60 seconds

AI Lead Qualifier + CRM Pipeline

Jotform submissions automatically scored as Hot/Warm/Cold by AI based on budget, timeline, and project clarity. HubSpot deal created instantly, personalized Gmail sent within 60 seconds, daily Slack digest at 9am.

JotformGemini AIHubSpotGmailSlackn8n

Business Outcomes ↑ 28% of leads flagged as Hot ↓ Hours → <60s response time ↑ HubSpot pipeline auto-populated ↓ ~12hrs/month saved on screening

n8n workflow

Zero-effort daily briefings · Proactive shortage alerts

Google Workspace Daily Ops Automator

Cron-triggered at 7:30am weekdays — reads ops Google Sheet, AI writes a 3-sentence briefing, HTML email sent to 3 managers, Google Calendar event auto-created for driver shortages, Slack digest posted to team channel.

Cron TriggerGoogle SheetsGemini AIGmail HTMLGoogle CalendarSlack

Business Outcomes ↓ Eliminated manual morning reporting ↑ AI-generated executive briefings daily ↑ Auto calendar alerts on shortages ↑ Cross-team visibility via email + Slack

n8n workflow

45min → <5min daily review · Automated MRR tracking

Business Metrics Report Pipeline

Queries Supabase (PostgreSQL) every morning at 8am, JavaScript node calculates MRR, churn rate, and trial conversion, AI generates narrative summary, formatted HTML Gmail sent to founders, data appended to Google Sheets log automatically.

SupabasePostgreSQLJavaScriptGemini AIGmail HTMLGoogle Sheets

Business Outcomes ↓ 45min → <5min daily metrics review ↑ MRR, churn & conversion tracked daily ↑ AI narrative highlights wins & risks ↑ Historical log for trend analysis

n8n workflow

On-brand content via WhatsApp · Approval-to-Drive in one flow

WhatsApp Content Generation Agent

User messages the bot with a brand name, topic, and tone. n8n fetches the brand profile from Google Sheets, AI generates 3 branded Instagram captions, user replies "approve 2" — bot saves the approved version to Google Drive under the client's folder.

WhatsApp APIGemini AIGoogle SheetsGoogle Driven8n

Business Outcomes ↓ Eliminated manual caption writing ↑ 3 brand-matched options per request ↑ Approved content auto-saved to Drive ↓ Zero file management overhead

n8n workflow

Credentials

Certifications

Formal training in AI, cloud, and data — the foundation behind every workflow I build.

Azure AI Fundamentals

TESDA · Microsoft

Microsoft Artificial Intelligence Course

Foundations of AI and machine learning concepts on Microsoft Azure — covering AI workloads, responsible AI principles, and Azure AI services.

Azure AI Machine Learning Responsible AI

Security, Compliance & Identity

TESDA · Microsoft

Microsoft Cybersecurity Course

Core concepts of security, compliance, and identity fundamentals — covering Microsoft security solutions and governance frameworks.

Cybersecurity Compliance Identity Management

Data Analytics Essentials

Cisco

Cisco Networking Academy

Practical data analytics skills — data collection, analysis, visualization, and interpretation to support data-driven decision making.

Data Analysis Visualization Analytics

AI Native Project Manager

TechAdemy

AI-Powered Project Management Masterclass

Practical AI-powered project management — leveraging AI tools to plan, execute, and deliver projects faster while maintaining clarity, team alignment, and strategic oversight.

AI Project Management Workflow Automation AI Tools

Building workflows
that work for you

Who I Am

Portfolio Projects