Cold Chain Alert System: Real-Time Monitoring with AWS IoT and Serverless

🌡️ Monitoring Temperature Sensitive Shipments in Real Time — The AWS Way

This project demonstrates a cold chain alert system I built to simulate real-time monitoring of pharmaceutical shipments — using AWS IoT Core, serverless functions, and secure APIs.

It mimics real-world pharmaceutical logistics by simulating 1,000 sensors publishing MQTT data to AWS IoT. Lambda functions handle ingestion, validation, and alerting. Temperature excursions trigger alerts via SNS. Everything is tracked in DynamoDB, and a React dashboard secured with Cognito displays the telemetry live.

I designed this to prove mastery in: • Secure, event-driven serverless architecture
• AWS IoT Core for MQTT ingestion and routing
• DynamoDB design for fast, scalable writes
• Cognito + API Gateway for JWT-secured endpoints
• Terraform automation for fully reproducible infrastructure

If you're building or hiring for event-driven systems, IoT, or real-time dashboards, this is the kind of project that shows readiness for enterprise-grade cloud work.

🔗 Read more about it here: [https://dev.to/christopherclemmons/i-built-an-enterprise-ready-cold-chain-alert-system-from-scratch-in-7-days-49dg]

Happy to share lessons learned or help others building real-time systems — just reply or message me.