VIVIAN YEOH

Technology Director Solutions Architect Systems Integration Specialist

Designing, programming, and deploying massive scale operations software, multi-tenant CRM/ERP ecosystems, and programmatic financial compliance layers from code blueprints to live runtime environments.

✉️ me@vivianyeoh.com 🔗 linkedin.com/in/vivianyeohhw/ 📍 Kuala Lumpur, Malaysia

10+

Years Experience

100+

Projects Deployed

10+

Team Members Managed

Multi

Industry Clients

Core Capability Stack

🎪 Event & Exhibition Architecture

  • Ticketing & Seating Allocation Systems
  • Online Exhibitor Manual (OEM) Systems
  • Event Registration Engines
  • Self-Service Kiosk Infrastructure
  • Queue Management Systems (QMS)

🏢 Enterprise CRM & ERP Architecture

  • Multi-Tenant Cloud ERP Environments
  • Travel & Tour Logistics Portals
  • Exhibitor & Supplier Portals
  • Membership & Loyalty

💳 Financial Pipelines

  • Malaysia LHDN e-Invoicing Compliance
  • Direct SQL Accounting API Sync
  • Automated Ledgers & Invoicing
  • Multi-Gateway Merchant Hooks
  • Supplier Exchange Order Automation

🎯 Automation & Marketing Logic

  • Interactive Brand Mini-Games
  • WhatsApp Business Broadcast Pipelines
  • High-Volume SMTP Automation Systems
  • Triggered Retention Workflow Logic
  • Dynamic Marketing Tracker Hooks

🤖 AI & Data Analytics

  • ChatGPT Assistants Integration
  • Gemini Custom Operations Automation
  • OpenCV Vision Verification Testing
  • Automated Industrial Log Scrapers
  • Tesseract Optical Character Scans

📡 Leadership & Supply Chain

  • Engineering Team Recruitment & Hiring
  • Framework Adaptation & Architecture Vetting
  • China Hardware Sourcing & Procurement
  • Supplier Pricing & Vendor Negotiations
  • AWS Instance & Cloudflare Routing Controls

Systems & Business Infrastructure

Enterprise End-to-End Event Tech Platform

Outcome: Scaled full-lifecycle event management handling thousands of concurrent daily users.

Architected full event technology suites, unifying custom online registration, secure interactive seating ticketing software, live digital exhibitor manuals, onsite kiosks, and active real-time queue-tracking engines.

Multi-Tenant Exhibitor Portal & Sync Engine

Outcome: Eliminated manual data logging by routing actions straight into data endpoints.

Programmed a secure corporate B2B portal allowing managers, contractors, and suppliers to seamlessly verify profiles, automatically trigger itemized client invoicing, and safely coordinate operational supplier orders.

Malaysia e-Invoicing Compliant Finance Core

Outcome: Standardized enterprise billing to process regulatory statutory checks automatically.

Built complex transactional processing layers supporting custom billing structures, multi-currency cycles, automated credits adjustments, and direct statutory API configurations to handle strict compliance rules at runtime.

Interactive Brand Engagement Frameworks

Outcome: Accelerated high-volume customer acquisition using responsive interactive modules.

Engineered responsive web mini-games and interactive companion apps seamlessly linked with downstream customer retention triggers, unique promotional code logic, and centralized enterprise CRM architectures.

Tour Agency Operations & Resource ERP

Outcome: Replaced legacy loose spreadsheets with a highly secure centralized operations hub.

Constructed a tailored travel operations engine providing management complete visibility across flight manifest structures, local ground logistics, live customer itineraries, dynamic payment flows, and automatic supplier vouchers.

Automated Workshop Workflow ERP

Outcome: Digitized production tracking with automatic customer status updates.

Programmed an agile production-tracking Kanban pipeline allowing workshop managers to dynamically progress service milestones. Configured automated webhooks via WhatsApp Business API for real-time customer updates and integrated a paperless digital signature PDF module.

Custom IoT Hardware & Wearable Access Control

Outcome: Deployed robust onsite access security and localized cashless event payments via direct device lines from China.

Wrote hardware connection logic to sync web architectures with physical POS thermal printers, real-time queue display monitors, and encrypted wearable RFID/NFC device components sourced directly from vetted international electronic suppliers.

Professional Trajectory

Project Director & Core Software Engineer • Enterprise Automation & Software Provider

2019 – Present
  • Architect and lifecycle-manage the structural code blueprints, framework layers, and high-volume database engines behind core multi-tenant CRM, ERP, and operational transactional suites.
  • Develop clean backend business logic using PHP and Node.js to bridge storefront systems with corporate SQL Accounting databases via custom high-throughput REST APIs and real-time webhooks.
  • Strategize end-to-end technical hardware provisioning by identifying, vetting, and sourcing specialized IoT equipment (RFID bands, scanners, POS printers) directly from China manufacturers, leading vendor negotiations and QC tracks.
  • Program automated financial workflow mechanics to handle dynamic billing engines, credits balance allocations, automated ledger matches, and statutory Malaysia LHDN e-Invoicing data validations.
  • Build automated messaging loops linking custom applications with the WhatsApp Business API and secure SMTP relays to execute contextual, event-triggered user notifications.
  • Write connector scripts linking backend web applications with localized components including kiosk screens, badge thermal printers, and RFID access gate arrays.
  • Embed intelligent automation tools directly into client CRM flows by scripting programmatic webhooks to LLMs (ChatGPT/Gemini) to optimize user onboarding paths and mitigate live queue bottlenecks.
  • Maintain resilient production architectures across AWS Lightsail and Cloudflare, while single-handedly directing engineering talent recruitment, technical scoping, and code-vetting for an agile team of 10+ developers.

Design Engineer • Global Consumer Electronics Manufacturer

2018 – 2021
  • Programmed high-precision automated manufacturing inspection tools with OpenCV, scripting real-time vision logic to mathematically validate structural hardware positioning, branding logos, and panel fonts on live assembly line camera feeds.
  • Coded robust rsync cron ingestion scripts using Node.js to scrape loose plain-text factory logs, systematically normalizing raw machine data into high-performance SQL analytics dashboards.
  • Selected directly by executive engineering directors to present localized automation frameworks and regional research to global technology heads at the international Sony STEF convention in Osaki, Tokyo, Japan.

Technology Badges

PHP Node.js MySQL Redis Flutter Construct 3 AWS Google Cloud OpenCV Cloudflare + Core REST APIs + Webhooks Automation