Edge IoT systems engineer

>> ABOUT THE ROLE

firmware-first embedded systems engineer

>> YOUR ROLE

• Develop and maintain 

  firmware for ESP32-S3

   with modular FreeRTOS architecture, OTA firmware updates, and energy-specific control loops
• Interface with sensors, inverters (MODBUS RTU/TCP), and relays
• Integrate MQTT communication and OTA logic with our EMS backend
• Structure and prepare embedded systems for 

  on-device inference

   using 

  TFLite Micro

   or similar models
• Collaborate with hardware intern and EMS software team to enable end-to-end control-data loops
• Assist in designing OTA model update workflows and fallback logic
• Write diagnostic scripts or tools to simulate, test, and monitor control decisions
• Design layered logic that scales across Level 3 (Basic) to Level 4 (Autonomous) automation systems

>> WHAT YOU BRING TO THE ROLE

i) Tools / Languages / Protocols:

• C/C++

   → Required for ESP32 firmware, memory handling, drivers, OTA, ML inference integration

• Python

   → Required for ML model pipeline (TFLite, ONNX conversion, feature engineering) and Edge controller logic (e.g., RPi CM4 service daemons)
• Familiarity with 

  MQTT, JSON

  , and sensor/control payload design

ii) Embedded systems:

• ESP32 (ESP-IDF), FreeRTOS modular task design, EEPROM/SPIFFS
• MODBUS RTU/TCP, UART, I2C, SPI, GPIO, ADC
• OTA firmware build + rollback logic
• Sensor and relay interfacing
• Power-aware firmware design (watchdogs, reset handling, boot states)

iii) EDGE AL/ML readiness:

• Exposure to 

  TFLite Micro

  , 

  ESP-DL

  , or 

  Edge Impulse workflows

• Understanding of Sensor data → Feature → Inference → Action loops
• Understanding of Model memory profiling, latency, and timing trade-offs
• Contribute to ML OTA update pipeline

iv) BONUS

• Jetson Nano / CM4 experience (Python/Flask services)
• Docker basics (for local inference deployment)
• Experience in solar energy or building energy management

>> WHAT WE VALUE

• A tinkerer mindset — who codes, debugs, builds, and breaks things to learn
• Ownership
• Structured work ethic — who can document, discuss and co-develop
• System design intuition — able to think beyond just firmware

>> JOB DETAILS

• Salary is negotiable (depending on skillset and ambition to work in young startup)
• ESOP (stock options)
• Probation period of 6 months
• On-site office + pilot site visits
• Location is Coimbatore

If you enjoy working in a startup with freedom to own and develop a product - together with young passionate team and building road to a new energy future for the world - THEN JOIN US !!