30+ Years Experience • Debugging • Bug Fix • Performance Tuning • Banking Systems • Enterprise Systems • Legacy Applications
Slow systems under high load
Optimize backend,
database, and APIs
System crashes and runtime errors
Root cause
analysis and fixes
VB / PowerBuilder / PHP systems
Modernization or
migration to Spring Boot
REST / SOAP / Enterprise API integration
I develop custom software solutions for enterprise and business systems, using the right technology based on real-world requirements.
Build enterprise applications using Java Spring MVC and Spring Boot
Develop and modernize legacy PowerBuilder applications
Frontend development with HTML, JavaScript, and Vue
I also develop custom software for industrial and factory environments, including barcode systems and hardware integration solutions.
Barcode systems for warehouses, factories, and logistics operations
Integration with weighing scales (RS232 / USB / Network / API)
I am a senior software engineer with over 30 years of experience, starting from VB, FoxPro, PowerBuilder, PHP, ASP, Java, and Go, currently focusing on Java Spring Boot and enterprise systems.
I have worked with banking systems, manufacturing systems, private companies, and government organizations, handling real production environments.
My strength is not just writing code, but analyzing and fixing real-world production system issues that are already running and critical.
Java
Spring
PowerBuilder
C# .NET
Angular
Vue
HTML
JavaScript
Java
Spring
PowerBuilder
C# .NET
Angular
Vue
HTML
JavaScript
Reduced response time from seconds to milliseconds
PowerBuilder → Java Spring Boot migration
Fixed critical system failures under pressure
Pricing depends on system complexity and can be estimated after an initial system analysis.
Identify root causes and analyze system issues
THB / system
Fix production issues and system failures
THB / issue
Build enterprise systems using Java, Spring Boot, and PowerBuilder
THB / project
Barcode systems, weight scale integration, and hardware connectivity
THB / project
* Pricing depends on system complexity and requirements
* Urgent production issues can be handled with priority support
I help identify the root cause and fix production issues to restore system stability
Contact NowEmail: boonchoo.roekchednee@gmail.com, contact@isoftbiz.com
Line: boonchooja
Tel: +66 9 1719 2999
Response within 24 hours