Intern - Embedded Hardware & Io T Engineer
Location: Gurugram, Haryana, India (In office)
Department: R&D; / Hardware Engineering
Experience Level: Intern
Duration: 6 months
About the Role
We are seeking a hands-on Embedded Hardware & Io T Engineer who has expertise in component sourcing and circuit debugging to firmware development, Modbus integration, and production assembly support.
You will work on real-world agricultural Io T systems, including:
Modbus RTU (RS485) sensors
BLE (Bluetooth) telemetry
Lo Ra WAN gateways (Dragino, RAK)
MQTT/Cloud pipelines (EMQX, Rabbit MQ)
This is not a theoretical role. You will debug broken PCBs, refine battery algorithms, test Lo Ra gateways, assemble pilot units, and freeze production firmware.
What You’ll Work On
1. Embedded Firmware & Hardware Debugging
Develop & debug firmware for multiple microcontrollers such as ATMEGAxx, ESPxx, etc.
Fix algorithms for core functionality, communication and power
Perform PCB functional tests
Identify and replace faulty components
2. Communication Protocols & Io T Integration




Implement and test Modbus RTU over RS485 (baud rate, slave ID, register maps)
Integrate RS485 sensors with 3 G/4 G industrial gateways , Lo Ra nodes , etc.
Configure MQTT brokers to ingest sensor data and publish to Io T clouds
Develop scripts for sensor to dashboard pipelines
3. Battery & Power Management
Conduct comparative analysis of Li-ion cells
Build accelerated discharge test circuits
Remote power management including solar power stations
Manage brownout protection and dual-power restrictions
Required Skills & Qualifications
Must-Have (Technical):
Microcontrollers: ATmegaxx, ESPxx, Raspberry Pi, etc
Communication Protocols: Modbus RTU, RS485, UART, BLE, MQTT
Hardware Tools: Oscilloscope/multimeter, logic analyzer, soldering station
Programming: C/C++ for embedded systems, Arduino IDE, Python
Debugging: Ability to repair damaged PCBs
Firmware Management: Algorithm, PCB flashing
PCB design basics (Ki Cad/Easy EDA)
Goo

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