Varun Cumbamangalam
Engineer. Architect.Full-stack problem solver.
I build connected products from the device up: embedded hardware, firmware, edge ML, mobile apps, and cloud infrastructure. I have spent seven years working across healthcare, wearables, and fitness tech in four countries.
Close to the hardware
Sensors, firmware, BLE, and edge compute built for the physical world.
Across the full stack
Mobile apps, APIs, cloud systems, and the data paths between them.
AI under real constraints
Models shaped around latency, devices, users, and deployment.
From prototype to production
Engineering decisions that turn early ideas into dependable products.
Domain expertise
Hardware & IoT
ESP32, STM32, Raspberry Pi, NVIDIA Jetson Nano, BLE sensors, embedded Linux
Mobile Apps
Flutter (iOS & Android), BLE integration, offline-first sync
AI & ML
PyTorch, ONNX, and TFLite for training and edge deployment
Frontend
React, Next.js, TypeScript, real-time dashboards
Backend & APIs
Go/Gin, Node.js, and Python/FastAPI for REST and WebSocket services
DevOps & Cloud
AWS (EC2, S3, SNS), Docker, systemd, CI/CD pipelines
Selected projects
View allHow I use AI in the build
AI tools are not shortcuts. I use them to prototype architectures, test edge cases, and explore options early. I still make the design calls and own the production code. That applies whether I am training disease detection models or building autonomous agents.