Sr. Firmware Developer – Energy Meter

Peoplefy; Bengaluru; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Peoplefy in Bengaluru, India, is seeking an experienced firmware engineer to develop and maintain embedded software for energy meters and energy measurement products. You will work with hardware and R&D teams to create high-performance, accurate solutions using STM32 microcontrollers.

The role requires strong Embedded C/C++ skills, experience with ADC, SPI, I2C, UART, CAN, and hands-on sensor interfacing for CTs, Hall sensors, and shunts. MATLAB/Simulink is used for algorithm validation.

Qualifications

• 5-9 years of relevant embedded firmware development experience.
• Experience with energy meters, power electronics, or industrial electronics is preferred.
• Strong hands-on coding in Embedded C/C++ and STM32 microcontrollers.

Responsibilities

• Develop and maintain embedded firmware for energy meters and energy measurement products.
• Work with hardware, electronics and R&D teams to ensure reliable, accurate measurement solutions.
• Implement firmware for current/voltage measurement, power and energy calculations.
• Configure microcontroller peripherals (ADC, timers, PWM, GPIO, SPI, I2C, UART, CAN).
• Debug, test and optimise firmware; perform unit and system level testing.
• Collaborate with cross-functional teams to validate performance and meet standards.

Skills

Embedded firmware

C/C++

STM32 microcontrollers

SPI/I2C/UART

MATLAB/Simulink

Sensor interfacing

Tools

MATLAB/Simulink

Embedded tooling

Job description

• The role is responsible for developing and maintaining embedded firmware for energy measurement and energy meter products, including MID and non-MID applications.
• The engineer will work closely with hardware, electronics and R&D teams to develop reliable, accurate and high-performance measurement solutions.
• Develop, maintain and enhance embedded firmware for energy meters and energy measurement products.
• Develop firmware for current and voltage measurement, power and energy calculation applications.
• Work on STM32 microcontrollers and develop robust embedded software for measurement applications.
• Strong hands-on programming experience in Embedded C / C++.
• Interface and configure microcontroller peripherals such as ADC, timers, PWM, GPIO, SPI, I2C, UART, CAN and other relevant interfaces.
• Develop firmware for sensor-based measurement systems using CTs, Hall sensors, Shunts and TMR sensors.
• Implement signal acquisition, filtering, calibration and measurement algorithms to achieve high accuracy.
• Work closely with hardware engineers to integrate sensors, analog front-end circuits and microcontrollers.
• Support development and validation of energy measurement algorithms, including voltage, current, power, energy and related parameters.
• Use MATLAB / Simulink and other simulation/modeling tools for algorithm development, validation and optimisation.
• Perform firmware debugging, testing, troubleshooting and performance optimisation using appropriate embedded development and debugging tools.
• Develop and execute unit-level and system-level firmware testing and validation.
• Support product development from concept and prototype through validation and mass production.
• Ensure firmware meets required performance, reliability, safety and applicable industry standards.
• Collaborate with Hardware, R&D, Testing, Product Management and other cross-functional teams.
• Analyse and resolve firmware, sensor interface and measurement accuracy issues.
• Maintain firmware documentation, design specifications, test reports and technical records.
• Stay updated on emerging technologies in energy measurement, magnetic sensing, microcontrollers and embedded systems.

Experience

• 5-9 years of relevant experience in embedded firmware development, preferably in energy meters, energy measurement, power electronics, sensing or industrial electronics.
• Strong hands-on experience in Embedded C / C++.
• Experience working with STM32( ANY) microcontrollers.
• Strong understanding of microcontroller architecture, peripherals and embedded firmware development.
• Hands-on experience with ADC, GPIO, Timers, SPI, I2C, UART, CAN or similar peripherals.
• Experience with MATLAB / Simulink for simulation, modelling or algorithm validation.