- Led end-to-end development of a production-grade IoT monitoring system deployed across 120+ live water and wastewater treatment plants.
- Ingested over 2.5M+ MQTT messages/day from 500+ field devices through AWS IoT Core, applying custom IoT Rules for real-time data transformation and routing.
- Designed a fully serverless backend with AWS Lambda, DynamoDB, and API Gateway, ensuring <500ms latency and zero-downtime scaling.
- Built historical analytics and real-time dashboards using React.js frontend and REST APIs served via AWS Lambda, enabling decision-making based on 10K+ data streams.
- Implemented multi-tenant architecture with role-based access control (RBAC) via AWS Cognito, securing site-level and org-level access across all clients.
- Deployed infrastructure using AWS CloudFormation, ensuring reproducibility, version control, and compliance with cloud best practices.
- Enabled CI/CD workflows using Vercel for frontend and Git-based deployment pipelines, achieving <45s deploy
