Embedded Firmware & IoT InternEngineer Trainee – Firmware, IoT & Lab Validation
Company: Neordent Healthcare Solutions Pvt. Ltd. — GentleDental.ai
Location: Guwahati, Assam
Engagement: Internship / Engineer Trainee
Function: Embedded Systems, Firmware, IoT & Product Engineering
Reporting to: Product / Engineering Team
About GentleDental.ai
GentleDental.ai is building the Gentle AI Smart Toothbrush and a connected oral-health intelligence ecosystem combining embedded electronics, imaging, biosensing, AI and IoT.
Our current focus is converting a functional Alpha prototype into a production-intent Beta product through an in-house engineering team supported by specialist consultants.
This is not a conventional software internship. The trainee will work directly on a real connected hardware product involving sensors, cameras, motors, batteries, BLE/Wi-Fi communication and laboratory validation.
Role Overview
We are looking for an Embedded Firmware & IoT Intern / Engineer Trainee who can support firmware development, device communication, sensor integration,



debugging and structured laboratory validation of the Gentle AI Smart Toothbrush.
The role will work closely with our electronics, mechanical, AI/software and DFM teams to ensure that the physical device, firmware and application layer function reliably as one integrated system.
The ideal candidate is comfortable working with actual hardware, reading datasheets, debugging boards and systematically finding out why something does not work rather than merely reporting that it does not work.
Key Responsibilities1. Embedded Firmware Development
Develop, modify and test embedded firmware for the smart toothbrush platform.
Work primarily with ESP32-class microcontrollers and associated peripherals.
Implement and debug:
GPIO
I²C
SPI
UART
ADC
PWM
timers
interrupts
low-power modes
Support firmware integration for sensors, motor controls, LEDs, camera interfaces and power-management components.
Develop robust device state machi

📌 Embedded Firmware (Guwahati)
🏢 NEORDENT HEALTHCARE SOLUTIONS
📍 Guwahati