I take over .NET systems that already run a business.

I became one of the principal engineers on a large metadata-driven WinForms platform that generates database structures, queries and application screens. The system was powerful but difficult to change safely: a small mistake deep in the platform could affect many generated screens.

I owned core platform behaviour, including view generation, SQL joins and data binding, reviewed changes across the system and improved the tooling used to maintain it. Along the way I built 19 of the platform's 20 internal tools and the shared base that 85 generated screens inherit from.

On a .NET 8 WinForms and DevExpress ERP, I set up the repository's layered project structure, created two reusable DevExpress controls (an editable TreeList and a search-lookup editor) and created its first ClickOnce publish profile.

Elsewhere I carried a solution-wide DevExpress upgrade from version 18 to 24 together with a .NET Framework 4.8 retarget and a Visual Studio 2012 to 2022 move, repackaged a desktop product that would not launch in the field into a single self-contained executable, and built the SHA-256-verified in-app updater that replaced ClickOnce's update channel.

A long-lived ERP was being moved into SQL Server by a team, with incomplete documentation and years of accumulated data assumptions. My part was the safeguards: the column-mapping specification, cross-database integrity checks and the checkpoint and rollback procedures.

I wrote the diagnostics that compare migrated data column by column and flag silently emptied columns for triage, and the checkpointed runbook that gave each checkpoint an explicit rollback target so a failed step could be reversed cleanly.

I co-founded a multi-branch clinic management platform built on .NET 9 and Blazor, and I own the software end to end: architecture, data design, implementation, testing and deployment.

The system spans appointments, patient records, treatment planning, billing, inventory, HR, reporting and branch-level access control, in Arabic and English. Because it handles clinical and financial data across branches, automated tests, audit logging, branch isolation, deployment safeguards and backup-and-restore verification are built into the architecture rather than added as afterthoughts.