Firmware Engineer / Embedded Systems Engineer – Medical Devices

INDQ is looking for a Firmware / Embedded Systems Engineer to develop reliable, production-ready firmware for medical devices and advanced engineering products.

The ideal candidate should have solid hands-on experience with ESP32, STM32, Nordic Semiconductor platforms, sensor interfacing, communication protocols, real-time embedded systems, and signal processing. The role will involve working closely with hardware, biomedical, mechanical, and product-development teams to convert device requirements into robust embedded solutions.

The candidate should be comfortable working from the sensor level to the complete device level — including peripheral interfacing, communication, data acquisition, signal processing, control algorithms, debugging, validation, and firmware documentation.
Key Responsibilities

* Develop embedded firmware for ESP32, STM32, Nordic nRF52/nRF53/nRF54 and similar microcontrollers.
* Develop firmware for medical and healthcare devices involving sensors, actuators, displays, communication modules,



and data acquisition systems.
* Interface and acquire data from various sensors such as:

* ECG / biopotential sensors
* PPG / SpO₂ sensors
* Temperature sensors
* Pressure sensors
* IMUs
* Load cells
* Optical sensors
* Analog front ends (AFEs)
* Other biomedical and industrial sensors
* Implement signal conditioning and digital signal-processing algorithms for noisy physiological and sensor data.
* Develop algorithms for filtering, noise reduction, feature extraction, signal quality assessment, and parameter estimation.
* Work with ADCs, DACs, timers, PWM, interrupts, DMA, GPIO, RTC, watchdogs, and low-power peripherals.
* Develop and debug communication interfaces including: UART, SPI, I²C, RS-232 / RS-485, CAN / CAN-FD, USB, BLE, Wi-Fi, Ethernet

* Develop BLE applications and profiles using Nordic/Zephyr or equivalent platforms.
* Interface embedded systems with mobile applications, P

📌 Firmware Engineer (Visakhapatnam)
🏢 INDQ
📍 Visakhapatnam