Role & responsibilities

- Design, develop, and maintain embedded electronics across multiple R&D; products, including microcontroller-based control units, sensor interface boards, actuator drivers, and system wiring.
- Integrate and calibrate sensors across domains water quality, environmental, motion/IMU, optical, and others including signal conditioning, ADC, and noise rejection.
- Develop and maintain firmware (embedded C/C++) for real-time data acquisition, automatic calibration, outlier filtering, actuator control, and safety interlocks.
- Implement connectivity and telemetry over cellular (GSM/LTE), Wi-Fi, BLE, or LoRa, with reliable store-and-forward for offline operation, an edge-to-cloud data pipeline (e.g., MQTT), and OTA firmware updates.
- Design and validate power electronics and power management: battery / UPS systems, charging, generator or solar interfacing, auto-changeover, and load management for uninterrupted operation.
- Engineer hardware for harsh deployment conditions: vibration and shock, humidity and water ingress (IP-rated enclosures), thermal management, and EMI/EMC robustness.
- Own PCB schematic capture and layout, component selection and BOM, prototype bring-up, and debugging.
- Support edge-AI, sensor-fusion, and predictive-maintenance features by ensuring high-quality, well-characterised sensor data and instrumentation.
- Build rapid prototypes to validate new R&D; concepts, and help mature the promising ones into reliable products.
- Support field trials, installation, and on-site troubleshooting; lead root-cause analysis of failures.
- Produce and maintain clean documentation: schematics, wiring diagrams, test procedures, calibration records, and as-built configurations.





Preferred candidate profile

- B.E./B.Tech in Electronics, Electronics & Communication, Instrumentation, or Electrical Engineering (or equivalent practical experience).
- 36 years of hands-on experience in embedded systems / IoT hardware development.
- Proficiency in embedded C/C++ on ARM Cortex-M class microcontrollers (e.g., STM32, ESP32, NXP); familiarity with an RTOS.
- Solid sensor-interfacing skills: IC, SPI, UART, analog signal conditioning, and ADC fundamentals.
- PCB design experience with a standard EDA tool (Altium, KiCad, or Eagle), including layout and bring-up.
- Working knowledge of wireless connectivity (cellular, Wi-Fi, BLE, LoRa) and IoT messaging protocols.
- Fundamentals of power electronics and battery management.
- Comfortable with lab instruments — oscilloscope, multimeter, logic analyser — and with soldering and rework.

Preferred / nice-to-have

- Experience with IoT sensing, instrumentation, or environmental monitoring systems.
- Exposure to marine, robotics, autonomous-platform, or machine-vision hardware.
- Edge AI / TinyML, sensor fusion, or data-driven calibration techniques.
- Rugged, automotive, or outdoor electronics; EMC compliance and IP-rated enclosure design.
- Cloud IoT platforms (AWS IoT, Azure IoT) and OTA update mechanisms.
- Python for test automation and data analysis.

What success looks like

- Reliable, field-proven electronics and sensor stacks that run unattended through real deployments, including loss of connectivity and power transitions.
- Sensor data trustworthy enough to drive automation, analytics, and predictive features.
- Fast, dependable turnaround from R&D; concept to working prototype, and from prototype to robust product.

📌 Electronics Engineer (Kolkata)
🏢 Shuvoneel Ras System
📍 Kolkata