ERP & Payroll Platform

VisionONE’s legacy Windows desktop ERP client was difficult to update, lacked real-time database syncs, and could not scale to handle dense payroll calculations for enterprise organizations. The client needed to migrate the system to a modern web stack, optimize heavy payroll run query speeds, and support automated mobile-money payouts to employees.

Through our custom software engineering services, we successfully migrated the platform to a modern web architecture. The backend is built on ASP.NET Core (.NET 8) with a dual-ORM approach: EF Core 9 maps the domain model, and Dapper handles heavy accounting ledger queries. The frontend uses Angular 20 with NgRx state management and AG Grid Enterprise for data-dense ledger grids. We integrated the M-Pesa STK Push API to support instant mobile-money payouts, utilizing webhooks to sync transaction states.

We offloaded heavy payroll processes and PDF payslip generation to Hangfire background jobs, keeping the web API responsive. We integrated the Microsoft Graph API to sync documents with SharePoint libraries. To secure the ERP, we implemented JWT, TOTP two-factor authentication, and ASP.NET Core Identity controls across three SQL Server databases. We wrote xUnit suites to test accounting and tax logic.

The VisionONE Web ERP launched successfully, allowing HR managers to run payroll in minutes instead of days. Ledgers sync instantly, and payments disburse autonomously to mobile devices.