🔥 Urgent Bug Fix & Debugging (Within 24 Hours)

Fix Bugs, Broken Code & Crashed Systems
Debug Your API & Web App Fast

Professional debugging for Java, PowerBuilder, PHP, and Web Applications
Fix urgent issues, small tasks, and abandoned projects

✔ 30+ Years Experience • ✔ Banking Systems • ✔ Industrial Systems • ✔ Real Production Fixes
💬 Send Your Bug (Free Review) View Case Studies
✔ Small jobs welcome • ✔ Starting from $30 • ✔ Fast response

What Problems I Can Fix Immediately

❌ Website Error 500

Site down, deployment failed

❌ API Not Working

Backend or integration issues

❌ Hard-to-Fix Code

Messy or abandoned codebase

❌ Slow System

Query, memory, or threading issues

🚀 Send Your Issue (Free Review)

Problems I Help Businesses Solve

Slow & Unstable Systems

Optimize backend, database, and APIs
to improve performance, stability,
and scalability for growing businesses.

Production Errors & Downtime

Investigate critical production issues,
identify root causes,
and reduce recurring system failures.

Legacy System Modernization

Upgrade legacy applications
such as VB, PowerBuilder, or PHP
into modern RESTful platforms.

Data Migration & Integration

Migrate data from DB to DB,
files to databases, or manual sources
with accuracy and reliability.

Work Process

A structured workflow from initial problem assessment to system implementation and enterprise-level support.

1. Initial Consultation

Discuss your system issues and business requirements.
You may provide screenshots, error messages, or describe the problem scenario
for an initial assessment and recommendation.

✔ Free Initial Assessment

2. System Analysis & Solution Design

Analyze source code, databases, servers, and production logs
to identify the root cause of issues
and propose the right technical solution.

⚠ Paid Professional Service

3. Development & System Improvement

Develop and improve systems based on the approved solution design.
Focus on performance, stability, and long-term maintainability
with post-delivery support available.

Enterprise-Level System Support

* Free consultation is available for initial assessment only.
* Deep system analysis and solution design are paid services.
* Focused on solving root causes, not temporary workarounds.

Software Development Services

Over 30 years of experience in enterprise systems, banking platforms, and production environments

Custom software development tailored to business requirements
Supporting enterprise systems, specialized applications, and multi-system integration

Enterprise Backend Systems

Backend development using
Java Spring MVC / Spring Boot / REST API
focused on performance, stability, and scalability

Legacy System Modernization

Maintain and improve legacy systems
such as VB, PowerBuilder, and PHP
while migrating toward modern architecture

Web Applications & Integration

Develop enterprise web applications
using HTML, JavaScript, and Vue.js
with API and system integration support

Focused on real production systems with strong emphasis on
performance optimization, system stability, security, and enterprise integration

Industrial & Factory Systems

Custom software solutions for industrial and manufacturing environments
Including barcode systems, hardware integration, and production line automation

Barcode System Development

Barcode printing systems for factories and warehouses
Supports thermal printers and PostScript-based printing
High-quality output for real production environments

Weight Scale Integration

Integration with weighing scales (RS232 / USB / Network)
Real-time weight data used in production and labeling systems
Stable communication for industrial environments

Production Line Systems

Production monitoring and alert systems
Reduce human errors in packing and QC processes
Integrated with hardware and factory devices

Real-World Problem Solving Experience

Experience from Legacy Systems, Large-Scale Databases, and Financial Transaction Analysis Platforms

Legacy PowerBuilder Integration

A legacy system developed with PowerBuilder needed to integrate with modern REST API and SOAP services for displaying, creating, updating, and deleting data.

Challenges:
REST API integration in PowerBuilder was complex, and large JSON responses exceeded the variable size limitations of the legacy application.
✔ Developed REST / SOAP integration modules
✔ Implemented JSON chunk processing
✔ Enabled compatibility with modern systems
Informix Index Recovery

An Informix database containing billions of passenger transaction records experienced index corruption while the production system had to remain online continuously.

Solution:
Migrated data temporarily, rebuilt the table structure and indexes, then switched tables during low-traffic hours with minimal service interruption.
✔ Maintained continuous system operation
✔ Minimized production downtime
✔ Gradually restored historical data
Financial Transaction Log Analysis

Designed a large-scale log analysis platform to monitor daily financial transactions and summarize Success / Error statistics by transaction type and time range.

Technology:
Java Spring MVC + Apache Solr for high-speed log ingestion and fast searching capabilities.
✔ Fast search performance on massive logs
✔ Supported high-volume daily transactions
✔ Real-time transaction analysis and reporting

Enterprise Software Experience

Extensive experience in enterprise systems, banking platforms, and real production environments from legacy systems to modern enterprise architecture.

Experience & Expertise

Started software development in the DOS era and worked across multiple generations of technology, including Assembly, FoxPro, VB, PowerBuilder, PHP, and ASP, evolving into Java Enterprise and modern web technologies.

Currently focused on enterprise software development using Java Spring MVC / Spring Boot, REST API, and enterprise architecture, including frontend development with Vue.js, Angular, and C# .NET.

✔ Core Strength

More than just software development, the focus is on analyzing and solving real production issues in enterprise environments with active users.

Enterprise Systems

Design and develop large-scale enterprise systems

Production Support

Analyze and resolve critical production issues

Legacy Modernization

Modernize legacy systems and architectures

System Integration

API integration and enterprise connectivity

Technology Stack

Technologies used in real-world enterprise software development and production support

Java

Spring

PowerBuilder

C# .NET

Angular

Vue.js

HTML

JavaScript

Java

Spring

PowerBuilder

C# .NET

Angular

Vue.js

HTML

JavaScript

iSoftBiz Profile

Boonchoo Roekchednee

Enterprise Software Developer & Production Problem Solver

LinkedIn Profile

Specialized in enterprise software, production issue analysis, legacy systems, and enterprise system integration in real-world production environments.

Real-World Project Experience

Experience in building and maintaining production systems
across enterprise, banking, and large-scale industrial environments

Current Engagement

Working as an outsourced software engineer for a global automotive enterprise
Technologies include Java, C# .NET, Angular, HTML, and JavaScript
Systems are used internally across organization units, dealers, and suppliers
Integrated with SAP and other enterprise backend systems

View details →
Banking Systems – Branch Applications (Java Backend)

Developed branch-level banking applications used by front-line staff
Including customer compliance systems (KYC / AML / identity verification)
SMS and email notification systems, and face recognition verification modules
Backend developed using Java Spring Boot

View details →
Banking Systems – Client-Server Applications (Legacy)

Developed core branch systems using PowerBuilder (Client-Server architecture)
Integrated with Core Banking systems via REST APIs and SOAP services
Implemented regulatory and financial modules such as FATCA and CRS
Supported SWIFT transfer processing and mutual fund sales systems

View details →
View All Projects

Services & Pricing

Pricing depends on system complexity and the condition of existing systems
All projects are evaluated after an initial technical assessment

✔ Free Initial Assessment
Feel free to describe the issue or provide screenshots / error messages for a preliminary evaluation at no charge.
Detailed investigation including source code review, server and database analysis, production log inspection, and root cause analysis is provided as part of the paid System Analysis service.
System Analysis

System investigation, root cause analysis,
and solution assessment for existing systems

Starting from 3,000+

THB / system

Production Issue Fix

Fix production system failures and critical errors
Focus on root cause, not just temporary workaround

Starting from 5,000+

THB / issue

System Development

New system development and legacy system enhancement
Java Spring Boot / PowerBuilder / Enterprise systems

Starting from 30,000+

THB / project

Industrial Systems

Factory systems, barcode, weight scale,
and hardware integration for production environments

Starting from 15,000+

THB / project

* Pricing is based on real system complexity and production environment conditions
* Urgent support for production-critical systems is available
* Focus is on solving root problems, not temporary fixes

View All Pricing

Is Your System Slow, Unstable, or Failing in Production?

I help identify the real root cause of system issues
and provide practical solutions for stable production environments.

✔ Free Initial Assessment
✔ Production Issue Support
✔ Enterprise & Legacy Systems
Request System Analysis

Contact & Consultation

You can send error messages, screenshots, or describe your system issues for an initial evaluation.

Email
boonchoo.roekchednee@gmail.com
contact@isoftbiz.com
LINE
boonchooja
Phone
+66 9 1719 2999
✔ Response Within 24 Hours

For production issues, system analysis, and enterprise support services

Add LINE WhatsApp Email Me

Technical Articles & Real-World Case Studies

Sharing real production experiences, legacy system integration, database recovery, and enterprise log analysis solutions

Integrating PowerBuilder with REST API & SOAP

Challenges of connecting legacy PowerBuilder systems with modern REST API and SOAP services, including large JSON response handling.

Read More →
Recovering a Corrupted Informix Index Without Downtime

Real-world experience rebuilding a massive Informix table containing billions of passenger records while keeping the production system online.

Read More →
High-Speed Financial Transaction Log Analysis

Building a large-scale transaction log analysis platform using Java Spring MVC and Apache Solr for fast search and reporting.

Read More →
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