Eng Sin Teoh

Designed and developed enterprise web applications including e-Invoice, petrol management, and insurance systems. Integrated RESTful Web APIs and third-party services for automated processing and compliance. Built scalable full-stack applications with a focus on performance, maintainability, and security. Performed SQL Server query optimisation, stored procedure enhancement, and database performance tuning. Designed Power BI dashboards and automated reporting solutions to improve operational visibility and decision-making. Participated in full SDLC activities and collaborated directly with clients to deliver customised software solutions aligned with business requirements.

Led development of custom e-Invoice, petrol management system and insurance applications using .NET Core and SQL. Designed and deployed scalable web applications with secure API integrations. Delivered BI dashboards and automated reporting using Power BI.

Enhanced plantation ERP modules covering finance, procurement, payroll, HR, workshop, and weighbridge management. Developed and maintained enterprise applications using ASP.NET, C#, JavaScript, jQuery, and SQL Server. Built and consumed Web APIs for system integration and data synchronization. Improved application performance through SQL optimisation and automation enhancements. Conducted debugging, testing, deployment, and post-production support activities. Participated in R&D initiatives and system customisation projects based on client operational requirements.