Comprehensive Security & Inventory System

I'm looking to build a comprehensive Security and Inventory System (SIS) for our on-premises operations. The system should have the following features:

Description: Develop a combined security and inventory system using Raspberry Pi SBCs and a laptop as the controller. The project will require experience with Raspberry Pis and Arduinos. Deliverables include complete software architecture planning, coding, and testing. An NDA and IP agreement will be required.
Skills: Raspberry Pi, Arduino, Software Architecture

- Employee access control: This should allow us to restrict access to certain sections of the system based on employee roles, ensuring data integrity.
- Real-time inventory tracking: I'm looking for a system that can provide real-time updates on our inventory, so we can have accurate information on stock levels at all times.
- Sales reporting: We need a feature that can generate reports on sales, helping us to analyze trends and make data-driven decisions.
- Management access control: Access control is a key priority. We need to ensure that the management team has the right level of access to monitor operations and make strategic decisions.

In terms of security, we are looking to implement a user login credentials system for access control. We believe this to be an important security measure for our operations at this stage.

The system should be designed for on-premises deployment.

Ideal skills and experience for the job:
- Experience in developing comprehensive security and inventory systems
- Proficiency in designing user access controls and real-time tracking features
- Prior experience in developing systems for on-premises deployment
- Strong background in data security and system reliability