l
leo_heng

Whleong

@leo_heng

I will develop VB NET accounting system, POS, invoice system with SQL Server

Malaysia
Chinese
About me
Hi! I am a Visual Basic programmer with solid experience in developing, maintaining, and migrating legacy VB6 systems to modern environments (VB.NET / SQL / Crystal Reports). I specialize in accounting modules, invoicing systems, and custom reporting solutions. In addition, I am fluent in English, Chinese (Simplified/Traditional), and Cantonese, and I provide high-quality translation services for technical documents, business communication, and creative content.... Read more

Skills

l
leo_heng
Whleong
Offline • 

See my services

Desktop Applications
I will develop vb net accounting system, pos, invoice system
From$15 / projectMore details

Portfolio

Work experience

Freelance_Web Designer

VB.NET Developer & ERP System Specialist

Freelance Web Designer

May 2014 - Present • 12 yrs

Developed and maintained custom business applications using VB.NET, VB6, and SQL Server, focusing on accounting and ERP systems. Key responsibilities and achievements: • Designed and developed Sales Invoice and Accounting modules • Built DataGridView-based entry systems with auto-calculation (tax, totals, discounts) • Integrated SQL Server databases for data management and reporting • Created Crystal Reports for invoices, statements, and financial summaries • Maintained and enhanced legacy VB6 systems for business continuity • Troubleshot and fixed system bugs, improving performance and reliability Specialized in helping small and medium businesses streamline operations by replacing manual processes with efficient software solutions. Strong experience in invoice processing, financial data handling, and system customization based on client requirements.