Firmware Engineer (Wearables Exp Required)

Noise; Gurugram District; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

Noise is seeking a highly motivated Firmware Engineer with strong skills in embedded systems to help develop next-generation wearable devices such as smartwatches, rings and bands in Gurugram, India. You will design, implement and optimize firmware for RTOS-based platforms, integrate health sensors, BLE connectivity and power management, and collaborate with hardware teams to ensure production readiness.

The ideal candidate has 4–8 years of firmware experience, strong C programming skills, and a

Qualifications

• Bachelor or Masters degree in Electronics, Embedded Systems, Computer Engineering, or related field.
• 4–8 years of experience in embedded firmware development.
• Strong proficiency in C programming and embedded software design.
• Experience with RTOS-based systems (FreeRTOS, RT-Thread, Zephyr, ThreadX, or similar).
• Strong understanding of microcontroller architectures (ARM Cortex-M preferred).
• Experience with communication interfaces: BLE, UART, SPI, I2C, GPIO, PWM.
• Experience with debugging tools such as JTAG, SWD, Logic Analyzer, Oscilloscope, and Protocol Analyzers.
• Good understanding of low-power embedded system design.
• Familiarity with Git and software development lifecycle practices.

Responsibilities

• Design, develop, and maintain embedded firmware for wearable devices based on RTOS platforms.
• Implement and optimize drivers, middleware, and application-layer firmware for sensors, connectivity, power management, and user interfaces.
• Develop firmware for health monitoring features including heart rate, SpO₂, sleep tracking, activity tracking, and workout modes.
• Integrate and optimize communication protocols such as BLE, UART, SPI, I2C, GPIO, PWM, and ADC.
• Work with sensor vendors and chipset partners to integrate PPG, IMU, temperature, ECG, and other wearable sensors.
• Optimize power consumption, memory usage, and overall system performance to achieve battery life targets.
• Support firmware bring-up, debugging, validation, and production readiness activities.
• Collaborate with hardware teams during board bring-up, schematic reviews, and hardware debugging.
• Analyze field issues, identify root causes, and implement robust fixes.
• Participate in architecture discussions and contribute to firmware design reviews.
• Develop test tools, automation scripts, and diagnostic utilities to improve development efficiency.
• Support OTA (Over-the-Air) firmware upgrade mechanisms and firmware release management.

Skills

C programming

RTOS concepts

ARM Cortex-M

Git

Low-power design

Debugging skills

Education

Bachelor or Masters in Electronics/Embedded Systems/Computer Engineering

Tools

JTAG

SWD

Logic Analyzer

Oscilloscope

Protocol Analyzers

Job description

About The Role

We are looking for a highly motivated Firmware Engineer with experience in embedded systems and wearable devices to develop next-generation smartwatches, smart rings, smart bands, and connected wearable products.

Location

Gurugram, India

Key Responsibilities

• Design, develop, and maintain embedded firmware for wearable devices based on RTOS platforms.
• Implement and optimize drivers, middleware, and application-layer firmware for sensors, connectivity, power management, and user interfaces.
• Develop firmware for health monitoring features including heart rate, SpO₂, sleep tracking, activity tracking, and workout modes.
• Integrate and optimize communication protocols such as BLE, UART, SPI, I2C, GPIO, PWM, and ADC.
• Work with sensor vendors and chipset partners to integrate PPG, IMU, temperature, ECG, and other wearable sensors.
• Optimize power consumption, memory usage, and overall system performance to achieve battery life targets.
• Support firmware bring-up, debugging, validation, and production readiness activities.
• Collaborate with hardware teams during board bring-up, schematic reviews, and hardware debugging.
• Analyze field issues, identify root causes, and implement robust fixes.
• Participate in architecture discussions and contribute to firmware design reviews.
• Develop test tools, automation scripts, and diagnostic utilities to improve development efficiency.
• Support OTA (Over-the-Air) firmware upgrade mechanisms and firmware release management.

Required Qualifications

• Bachelor/or Masters degree in Electronics, Embedded Systems, Computer Engineering, or related field.
• 4–8 years of experience in embedded firmware development.
• Strong proficiency in C programming and embedded software design.
• Experience working with RTOS-based systems (FreeRTOS, RT-Thread, Zephyr, ThreadX, or similar).
• Strong understanding of microcontroller architectures (ARM Cortex-M preferred).
• Experience with communication interfaces: BLE, UART, SPI, I2C, GPIO, PWM.
• Experience with debugging tools such as JTAG, SWD, Logic Analyzer, Oscilloscope, and Protocol Analyzers.
• Good understanding of low-power embedded system design.
• Familiarity with Git and software development lifecycle practices.

Preferred Qualifications

• Experience developing firmware for smartwatches, smart bands, smart rings, TWS, or IoT products.
• Experience with Nordic, Realtek, SiFli, Ambiq, Dialog, Telink, or similar wearable chipsets.
• Experience integrating health and fitness sensors.
• Knowledge of BLE profiles and wearable communication architectures.
• Understanding of bootloaders, OTA update mechanisms, and secure firmware development.
• Familiarity with LVGL or embedded UI frameworks.
• Experience working with manufacturing test firmware and factory tools.
• Basic understanding of signal processing and wearable algorithms.

Desired Skills

• Strong debugging and problem‑solving capabilities.
• Ability to work independently and drive feature ownership.
• Excellent collaboration and communication skills.
• Ability to balance performance, memory, and power constraints.
• Product‑oriented mindset with focus on user experience and reliability.

Nice to Have

• Experience with smartwatch watchface engines and graphics rendering.
• Experience integrating AI or voice‑assistant features on embedded devices.
• Knowledge of sensor fusion, motion processing, or health‑monitoring algorithms.
• Experience working with cloud‑connected wearable ecosystems.
• Experience: 4–8 Years