Arcade J MamangunAI Automation Expert & AI/ML Engineer
AI Automation (n8n, Make.com, Zapier, GHL)
Predictive Models & Applied ML
AI Agents & Voice Systems (VAPI, WhatsApp)
N8N | Make | Zapier | GHL | Hubspot | VAPI | Python | OPENAI | Prediction | Forecasting
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About Me
Over the last 13 years I have helped agencies, SaaS startups, e-commerce groups, trading desks, and enterprise teams automate operations, deploy AI agents, and enable data-driven decisions. What makes my work different is the combination of architecture, AI/ML engineering, backend integration, and process design. Every engagement is approached like a mission-critical system — with redundancy, monitoring, and a clear plan for growth.
I turn complex business processes into reliable, scalable, intelligent systems. From automation-first funnels to AI-powered forecasting, I build platforms that survive real-world usage, not just demos.
Core Capabilities
Approach
Full lifecycle ownership from architecture to steady-state operations.
I operate as a solution architect, not a task-based implementer. The goal is to deliver bulletproof systems that continue running long after hand-off.
🧩Architecture & System Design
Map real-world processes, model dependencies, and expose failure paths before a single node is built.
⚙️Automation Engineering
Engineer n8n, Make, and Zapier flows with retries, observability, and control panels that run lights-out.
🧠AI & ML Engineering
Design LLM-powered agents, RAG pipelines, and classical ML models that balance accuracy, latency, and cost.
🔗Backend & Integrations
Ship FastAPI microservices, event-driven workers, and multi-platform webhooks that glue every system together.
🤝Communication & Delivery
Operate as your technical partner—real-time updates, decision rationale, and iteration until launch day.
Services
Designed for automation-first teams that need AI they can trust.
AI Automation Systems
Design and deploy resilient automations that eliminate manual work across revenue, operations, and support.
- • End-to-end lead generation, enrichment, and nurture pipelines
- • LinkedIn, email, and omnichannel outreach systems with human-quality AI responses
- • Voice receptionists, call routing, and follow-up automations
- • CRM orchestration across HubSpot, GoHighLevel, and custom data sources
- • Document intelligence: PDF intake, extraction, and downstream workflows
- • Alerting, approvals, onboarding, and billing automations
AI Agents & Conversational Systems
Deploy voice, chat, and task agents that reason over your knowledge base and trigger business workflows.
- • Voice agents for inbound and outbound calling
- • WhatsApp, Telegram, and web chat assistants with multi-step reasoning
- • Internal knowledge copilots powered by Notion/Drive content
- • Appointment scheduling agents integrated with calendars and CRMs
- • Task automation agents for ClickUp, Notion, Asana, and Todoist
History & Projects
AI automation first, AI/ML engineering always.
A snapshot of production workflows and machine learning systems that delivered measurable outcomes.
AI Automation Projects
AI Voice/SMS Agent Setup for Agency
Featured Automation
Build Inbound/Outbound cold callers using Retell AI, GHL, N8N, VAPI, Checking availability of calendar, Booking appointment, Notifying to people.
90% Manual Repetitive work both time/reduce, increase conversion rate and leads for daily work.
LinkedIn Engagement Automation
Featured Automation
Monitors comments in real time, drafts GPT responses, sends targeted DMs, and syncs everything to the CRM.
60% engagement lift and 10+ hours reclaimed every week.
LinkedIn Job Application AI Assistant
Featured Automation
Scrapes roles, ranks relevance with AI scoring, drafts personalized outreach, and manages the entire pipeline.
Delivered daily shortlists and doubled reply rates for job-seeking campaigns.
Real Estate Voice Calling Agent
Featured Automation
Voice AI handles inbound and outbound calls, qualifies leads, books appointments, and updates pipeline stages.
10× outreach capacity with zero missed leads.
Instagram Story Generator
Featured Automation
Detects upcoming events, generates GPT copy plus branded imagery, and auto-publishes to Instagram.
Removed 80% of manual social workload for franchise teams.
Car Part Arbitrage Automation
Featured Automation
Scrapes marketplaces, scores arbitrage opportunities, calculates ROI, and sends Discord alerts.
Completely automated sourcing workflow with minute-level alerts.
AI/ML Projects
AI Powered Door Pricing Estimation Engine
Machine Learning
Estimate thousands of doors price based on door schedule, frame schedule, price list digseting dense tabular PDF files.
Stock Movement Forecasting
Machine Learning
Feature-engineered pipelines predicting short-term stock momentum with automated daily retraining.
Altcoin Downturn Signal
Machine Learning
Custom crypto index using whale metrics, order books, and BTC correlations to flag downturn windows.
NBA & MLB Game Predictions
Machine Learning
Player-level performance models, opponent adjustments, and betting edge dashboards for sports investors.
Water Intelligence Monitoring
Machine Learning
Geospatial ML system detecting flood anomalies and coastal risk patterns using satellite imagery.
AI Video Intelligence Platform
Machine Learning
Transcribes content with Whisper, builds GPT summaries, key moments, and quiz generation for long-form media.
WorkFlow Gallary
A glimpse of recent automation infrastructure. From n8n and Make.com orchestrations to GoHighLevel revenue flows — every workflow ships with monitoring, logging, and handover docs.
LinkedIn Pipeline Orchestrator
Job Application Scoring Flow
WhatsApp Support Agent
Restaurant Voice Concierge
Car Part Arbitrage Monitor
Video Summary Automation
I've built dozens more across n8n, Make.com, Zapier, GoHighLevel, HubSpot, WhatsApp, Slack, and Google Workspace. If you need a workflow automated, I've likely shipped a version of it before.
Technical Skills
Comprehensive expertise across modern development stack with focus on scalable web applications and DevOps practices.
Automation & Orchestration
AI & Machine Learning
Backend & Infra
Data & Analytics
What Clients Say
Operators choose Arcade when outcomes matter.
“Arcade built automations that cut our manual work by ~70%. We now run operations with the same team but twice the output.”
Agency Owner
“Our AI receptionist now answers every call, books appointments, and syncs everything to our CRM. Zero missed leads.”
HVAC Business
“We gave Arcade a vague idea. He returned with a complete architecture, a working prototype, and a clear rollout plan.”
SaaS Founder
Let's Work Together
Ready to bring your next project to life? Let's discuss how my expertise in full-stack development and DevOps can help achieve your goals.
Location
Angeles, Pampanga · Remote Worldwide