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upwork.com 🟡 2026-05-18

🔹 Embedded Systems Engineer Needed for POS Data Extraction Device Development
👤 Client: 🇦🇺 Australia Member since 2021-04-04
💰 Price: $1,000.00 Fixedprice
🚩 Problem: Transform a functional prototype into a commercial-standard product by upgrading components, optimizing architecture, and ensuring reliability.
📦 Existing: [Current Prototype Components: Raspberry Pi Zero 2 W, PN532 RFID Breakout Board, 1D/2D Barcode Scanner Module, 7-inch IPS LCD Touch Screen]

Specifications:

[Target] Upgrade current prototype components to commercial-grade standards
[Method] Develop and integrate new hardware components; refine system architecture
[UI/UX] Improve user interface for authorization methods (QR Code, NFC Tag, Phone Number Verification)
[Stack] Utilize Raspberry Pi Zero 2 W as a starting point but upgrade to a more suitable processor/platform; incorporate commercial-grade hardware
[Security] Ensure secure data transmission and user authorization processes
[Format] Deliver final product in a production-ready state with detailed documentation

Workflow:

1. Evaluate current prototype components for upgrades
2. Design and integrate new hardware components (PCB, display, etc.)
3. Develop optimized system architecture for scalability and reliability
4. Refine UI/UX design for all authorization methods
5. Ensure secure data transmission protocols are in place
6. Design and manufacture production-ready enclosure
7. Test and validate the final product