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open5588/README.md

Jason (@open5588) — Senior / Staff .NET (C#), Enterprise ERP / WMS & Full-Stack Architect

  • Primary Stack: C# (C# 12), .NET 8 / .NET 9 / .NET 10 LTS, ASP.NET Core Web API, ASP.NET WebForms-to-Core Modernization, MS SQL Server (T-SQL), Entity Framework Core, Dapper, xUnit
  • Enterprise ERP, WMS & Multi-Tenant SaaS (YMSaaS):
    • YMSaaS & WmsApp (NestJS + Next.js + Prisma + MySQL + React Native): Multi-tenant cloud WMS/ERP platform replacing legacy ASP.NET WebForms WMS (YMSystem.sln) with per-tenant isolated databases, 4-layer Inventory defense, PO & Automated Inspection state machines, 3-tier nested Logistics tracking, Outbound Picking/Packing, Quotation engine, and React Native PDA barcode scanner app.
    • Enterprise ERP Modernization (.NET 8 Web API + React + T-SQL): Full rebuild of legacy .NET 4.8 WebForms Sales Analysis (SA), Inventory, and Sales Order (SO) modules with a deterministic Oracle Golden Verification Harness (145/145 automated tests green, 100% row/column financial parity).
    • Enterprise Identity & Cloud-Native .NET (.NET 9 SSO & .NET 10 LTS Docker Swarm): Centralized .NET 9 Single Sign-On & RBAC control plane (React 19 + MUI 9, 29/29 integration tests) and .NET 10 LTS order/notification microservices on AWS Linux Docker Swarm (Microsoft Graph API).
    • Warehouse DC & Logistics Suite (C# / .NET): WMSLocationImporter (DC creation wizard & Excel-to-DB slotting), WMSQrBook (automated Rack/OpenArea QR code book generator), Trucking2000 & ContainerTrackerAPI, Transload WMS UI (React 19 + MUI X DataGrid v8), and PunchHub multi-site RFID/biometric terminal receiver.
  • Shipped Cross-Platform Products: CelerCam · CelerCast · Skywave · Osprey SMS · Spirit Island Defense
  • Live Portfolio & Resume: Portfolio · Resume PDF · [email protected]

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