Jirawat
Wongmahasarn

MES Software Engineer

• Develop and implement MES and SCADA solutions using WinCC OA, writing custom C++ scripts to automate workflows and build dynamic user interfaces
• Integrated MES software with PLC and SCADA systems using Modbus, OPC UA, and PROFINET, ensuring real-time IT/OT data exchange
• Collaborate with production, IT, and engineering teams to ensure system interoperability aligned with ISA-95 architecture
• Design and query relational databases using SQL for secure data processing, operational metrics, and specialized reporting

HLC Engineer

• Designed and implemented .NET- and SQL-based control and monitoring applications for international airport Baggage Handling Systems (BHS)
• Integrated automation equipment with centralized control software, bridging OT-level devices with IT databases and reporting systems
• Designed MSSQL Server databases and stored procedures, improving data flow between subsystems and enhancing traceability
• On-site deployment and integration at Cairo International Airport, collaborating with global engineering and IT teams

Embedded Software Engineer

• Developed MQTT and HTTP communication libraries in C/C++ enabling large-scale IoT device connectivity with the AIS IoT Platform (Magellan)
• Designed device SDKs and developer tools to accelerate integration for AIS partners, supporting smart manufacturing and agriculture applications
• Built C# and Python-based MQTT QA tools to test and validate OTA communication reliability and performance
• Authored comprehensive user guides and delivered technical workshops for partner enablement

System Analyst (IoT Developer)

• Designed and implemented IoT-based monitoring systems connecting machine-level data to real-time dashboards for factory performance tracking
• Developed multi-tasking C/C++ applications for IoT nodes (ESP32/Arduino) and web dashboards using HTML5, JavaScript, and SQL
• Defined data architecture for factory monitoring, improving machine utilization and process traceability