BarbaroTech
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Case study

02 / 07

Employee QR Badge & Scan Tracking System

Serverless QR identity system with device-level tracking and Zebra printer integration.

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Project preview
Employee QR badge tracking system interface
AWS LambdaAPI GatewayDynamoDBPythonZPLCSV Pipelines
Labels printed
100s+
Latency
<50ms per scan
Infra
100% serverless

Inside the build

Need, decision, shipped result.

A production-grade QR badge system built to generate unique employee QR codes, track scans across devices, and support high-volume physical label printing. The system integrates a serverless AWS backend with printer-native ZPL generation for reliable hardware output.

The need

What had to change

Needed a reliable way to generate and track employee QR badges while integrating with thermal printer hardware and avoiding brittle PDF-based workflows.

The build

What I made

Built a cloud-based system with native ZPL output to bypass PDF scaling limitations and ensure consistent printing across Zebra devices.

Shipped result

What came out of the work

  • Reliable QR scanning across devices
  • Accurate scan metrics per employee
  • Eliminated manual label generation

Build ledger

The details behind the surface.

  • Serverless backend with scan + unique device tracking
  • Printer-native ZPL generation for Zebra hardware
  • Batch label generation grouped by store location
  • QR routing with platform-aware redirects

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