At 360Watts, we're building next-generation Energy IoT products with edge computing for intelligent energy management, connecting rooftop solar, batteries, appliances, grid and user experience. We're looking for a curious, hands-on Embedded Firmware Engineer Intern. You'll work on embedded IoT devices from early prototypes to custom hardware integration, testing and real-world deployment. You need to think IoT as a PRODUCT and not just programming. The role is an internship. We look only for 2026 graduates ONLY. On-going college students will not be considered. // YOUR ROLE i) Embedded Firmware Development — Primary Focus:
• Develop and debug embedded firmware using C/C++ on ESP32, STM32 and other ARM-based microcontrollers.
• Work on bare-metal programming, interrupts, timers, memory management, peripherals and real-time embedded systems.
• Develop firmware using FreeRTOS/RTOS, including task scheduling, inter-task communication and concurrency.
• Implement and optimise communication over wireless protocols such as Wi-Fi, LTE/4G, LoRaWAN and Thread, and application protocols such as MQTT and HTTPS.
• Work with wired interfaces and industrial protocols such as UART, SPI, I²C, RS485/Modbus and CAN.
• Develop reliable firmware features including OTA updates, watchdogs, fault recovery, diagnostics, logging and offline data handling.
• Explore Python-based embedded development, MicroPython and emerging edge computing applications. ii) Hardware Integration & Validation — Supporting Focus:
• Read and understand electronic schematics,



component datasheets and hardware interfaces.
• Support firmware bring-up and debugging on development boards and custom PCBs.
• Test and validate hardware using digital multimeters, regulated power supplies, oscilloscopes and logic analysers.
• Collaborate with hardware designers and external engineering partners to diagnose hardware–firmware integration issues.
• Participate in prototype testing, field trials and technical documentation. // YOUR ELIGIBILITY
• Recent graduates in ECE, EEE, E&I;, Embedded Systems or related disciplines.
• Good fundamentals in C/C++
• Hands-on project experience with MCUs such as ESP32 (or) STM32
• Experience with ESP-IDF, STM32CubeIDE, FreeRTOS or other embedded development frameworks.
• Exposure to wireless protocols involving cloud & edge IoT (eg. Wi-Fi, LTE, BLE, LoRaWAN, Thread, MQTT, Modbus, CAN).
• Exposure to OTA, bootloaders, flash storage or embedded diagnostics.
• Reading circuit schematics and debugging embedded hardware. //

HOW TO APPLY
• Share your project portfolio (photos/videos with description)
• GitHub links
• A brief note describing the most interesting hardware project you've built // JOB DETAILS
• Start: Immediate
•

Location:
In office (office)
•

Salary:
Rs. 8k
- 10k per month
• Duration: 6 months
• Post-internship, full-time employment is possible based on performance and technical growth. --> Deadline to apply, on or before 13.11.2026

📌 Intern - Embedded Firmware Engineer (Coimbatore)
🏢 360watts
📍 Coimbatore