Senior Firmware Engineer – Smart Energy Meter.

Position: Embedded Firmware Engineer – Smart Energy Meter.

Experience: 5–10 Years

Reporting to: Team Lead – R&D (Firmware).

Job Responsibilities

• Candidate will be responsible for developing Firmwarefor Embedded systems,also includes writing code, debugging and maintenance.
• Hands on experience in microcontrollers based designs Domain Knowledge.
• Implementationof user requirements.
• Implementing the full DLMS/COSEM protocol stack (Physical layer to Application layer) within the meter's firmware to handle communication procedures.
• Mapping all meter functionalities and data items (e.g., instantaneous values, load profiles, events, billing parameters) to the standardized COSEM interface classes and unique OBIS (Object Identification System) codes.
• Integrate and manage cellular & RF communication modules: CAT-M1 / NB-IoT, 4G / 5G, LoRa / LoRaWAN, BLE, Zigbee, Wi-Fi
• Handle UART / SPI / I2C / USB interfaces.
• Implement and maintain communication protocols, DLMS/COSEM (mandatory for smart meters), TCP/IP, UDP, MQTT / MQTT-SN, CoAP / HTTP / HTTPS

Desired Functional Knowledge & Skills

• Strong experience in controller-based designs with proficiency in C and Assembly, and hands-on work with peripherals like ADC, UART, SPI, and I2C.
• Expertise in wireless technologies including 4G/5G, NB-IoT, BLE, Zigbee, Wi-Fi, LoRa/LoRaWAN, and IoT protocols such as MQTT, CoAP, and TCP/IP.
• Experience in FOTA implementation, RTOS development, and strong debugging and problem-solving capabilities.
• Good understanding of user requirements, project lifecycle management, and compliance documentation (CMMI/ISO).
• Hands-on experience with hardware testing tools like Oscilloscope, Multimeter, LCR meter, Function Generator, and soldering tools.

INTERSTED CANDIDATES PLS REPLY US HERE OR MAIL TO "careers@visiontek.co.in"

Regards,

BHARGAVI-HR.