a lightweight orders management application for Windows 10

Job ID: 39553331

Budget: $250 – $750 USD

I'm looking for a programmer capable of developing a lightweight management application for Windows 10 Pro, to be used locally (offline) for managing the following:

Clients, Suppliers, Products

Orders and Conversion into Invoices

Pricing, Price Lists, VAT, and Inventory

Products with multiple suppliers and quantity-based pricing

If you’ve already developed similar projects, please send me links or examples.

Here is the detailed description:

Technical Specs:
OS: Windows 10 Professional

Technologies: C#, WinForms/WPF, Electron, VB6/VB.NET

Database: Access, SQLite or local MySQL

Language: Italian (multilingual optional)

Features: Automatic backup, PDF printing support

Main Modules:
1. Client Database
Full data: code, contacts, VAT number, payment method, associated price list.

2. Supplier Database
Fiscal data, contacts, supplied products.

3. Products/Items
Code, description, category, VAT, unit, purchase/sale price, status, photo (optional), custom attributes.
Supports multiple suppliers.

Pricing & Price Lists
Up to 8 progressive levels, e.g.:

List 1: 1 pc → €50

List 2: 5 pcs → -5% (€47.50)

...

List 8: 70+ pcs → -30% (€35)

Automatic application based on quantity, with optional manual override.
Each client can be assigned a default price list.

Other Modules:
4. Item Categories – With subcategories, useful for filters and reports.
5. VAT – Configurable tables (e.g. 0%, 4%, 10%, 22%) per item and customer.
6. Sales Orders – Select customer, products, price list, VAT, discounts, total, status (draft/confirmed), button “Convert to Invoice”.
7. Supplier Orders – Order status, quantities, supplier pricing.
8. Invoicing – From order or direct, automatic numbering, PDF print with logo.
9. Reports & Stats – Filters by period/category/VAT, sales, purchases, margins. Export to CSV, PDF, Excel.
10. Users (Optional) – Multi-user support, roles (Admin/Operator), change tracking.
write "win10" as your first words in your bid.
Related categories: .NET SQL C# Programming Software Architecture VB.NET