IT/OT Consultant · SCADA · IIoT · MES Developer

Sarawut Khumthong

sarawutkh.pages.dev — Senior Engineer with 13+ years in Industrial Automation & Digital Transformation
sarawutkh2024@gmail.com +66 081-784-7147 Thailand
About

Over 13 years of experience in industrial control systems and automation, specializing in Ignition SCADA, Wonderware InTouch, Genesis64, and LabVIEW. Recent focus on IT/OT Integration — connecting shop floor operations with business intelligence layers via MQTT, MES, SAP, and cloud-based dashboards. Proficient in Python, SQL, Jython, JavaScript, and VBA, enabling end-to-end solutions from PLC communication through to data analytics. International project experience across China, Malaysia, the Philippines, and Bangladesh.

Experience

IT/OT Consultant

Jun 2026 – Present
Omron Electronics (Thailand) Current
  • IT/OT Convergence: Design and implement network architecture bridging OT systems (PLC, HMI, SCADA) with enterprise IT infrastructure and cloud platforms
  • Digital Transformation Consulting: Assess gap analysis for industrial clients — define roadmaps for IIoT adoption, edge computing deployment, and data analytics integration into production processes
  • Solution Design: Specify Omron platform configurations alongside third-party SCADA/MES solutions to deliver both real-time control and business intelligence outcomes
  • Support pre-sales technical activities — lead Proof of Concept demonstrations and conduct technology workshops for enterprise clients
Omron PLC/HMI IT/OT Architecture IIoT Edge Computing Digital Transformation

Senior Engineer — MES & Digital Factory

Jul 2024 – May 2026
McKey Food Services (Thailand) Co., Ltd. 2 yrs
  • Real-Time OEE: Implemented MES to automatically calculate OEE — giving management a live view of availability, performance, and quality losses across production lines
  • Paperless Factory: Eliminated all paper logs by digitizing alarm recording and machine downtime tracking — every event classified and linked to the correct SAP Production Order
  • SAP Integration: Established real-time data exchange between MES and SAP to support maintenance strategy, inventory management, and cost reporting
  • Served as the technical bridge between shop floor (machine sensors, production lines) and corporate strategy
Ignition SCADA MES SAP Integration OEE MS SQL Server Python Jython

SCADA Engineer

May 2015 – Apr 2024
MAYEKAWA Thailand 9 yrs
  • Implemented SCADA systems — communication between SCADA and hardware control systems (PLC, Remote I/O)
  • Data recording, reporting, and graph trending across dozens of refrigeration sites throughout Asia
  • Developed micro-services using Python, Google Apps Script, Visual Studio C, SQL, MQTT Protocol, and Excel VBA
  • Configured IIoT data gateways (MOXA, V-Box, C-Box) for cloud data pipelines
  • Database design and administration: MS-SQL Server, MS-ACCESS, MySQL
  • Alarm line notification systems, commissioning of electrical and refrigeration systems
  • On-site deployment in China, Malaysia, Philippines, and Bangladesh
Wonderware InTouch Genesis64 MQTT Python SQL V-Box / C-Box Excel VBA

Systems Integration Engineer

May 2013 – May 2015
SCADA Automation 2 yrs
  • Gathered requirements, built SCADA systems from scratch, and handled full control panel installation
  • Solar Farm SCADA: Kanchanaburi, Lopburi, Chiang Mai, Lamphun
  • Engine Test Performance System: R&D platform for KUBOTA
  • Wind Turbine Test System: R&D platform for PTT Wang Noi
  • Delivered customer training and provided after-sales technical support
LabVIEW SCADA Control Panel Commissioning