Le Linh

Built an IoT fleet-management platform over roughly 100 LoRaWAN networks and hundreds of thousands of devices, keeping it healthy in production. Implemented telemetry ingestion and processing where each device reports every ten minutes; data is aggregated, indexed, and typically queryable in under 250ms. Owned the full sensor read path from LoRaWAN radio/device code through an AWS pipeline using IoT Core, Lambda, SQS, and SNS into the database, extending ownership to sensor inventory and the Unix servers the platform runs on. Designed and delivered Vue 3 operator dashboards on an Elasticsearch read layer, shipped cross-platform React Native mobile apps, and built an authentication system for the entire platform.

Built and operated an IoT fleet management platform for ~100 networks and hundreds of thousands of devices reporting every 10 minutes. Owned the LoRaWAN-to-database pipeline on AWS compute/storage/queues, plus sensor inventory, low-level device code, and Unix server administration. Ingested, aggregated, and exposed data with query latency under 250ms. Also built Vue 3 operator dashboards over an Elasticsearch read layer, supported cross-platform mobile apps, and implemented/maintained the platform authentication system.

Built client applications using modern web technologies and shipped Angular 1 single-page apps with real-time features over WebSockets, optimizing for speed and maintainability. Mentored and supported development efforts as part of product delivery.