Embedded Systems and Test Engineer

5 days ago

Lucknow, Uttar Pradesh, India SoundX Full time ₹ 9,00,000 - ₹ 12,00,000 per year

Role Overview

We are looking for an Embedded Systems & Test Engineer to develop firmware and validate electronics for hearing aids (BTE, RIC, CIC). This role combines embedded coding, API integration between Bluetooth and DSP chips, hardware bring-up, and functional testing of PCB prototypes. The DSP algorithms will be provided, but the role requires efficient integration and optimization. The engineer must ensure smooth Classic Bluetooth audio streaming (A2DP/HFP) and low-power BLE communication (control/data).

Responsibilities

  • Develop and integrate firmware for DSP and Bluetooth SoCs (low-power wireless audio).
  • Write and optimize low-level drivers for peripherals (I²C, SPI, UART, ADC/DAC, power management).
  • Implement and debug APIs for communication between Bluetooth (Classic + BLE) and DSP chips.
  • Ensure seamless support for audio streaming over Classic Bluetooth (A2DP/HFP) and control/data via BLE (GATT profiles).
  • Optimize firmware for low power operation and real-time performance.
  • Debug and validate new PCB prototypes with hardware engineer.
  • Design and execute test plans for audio quality, wireless performance, and battery life.
  • Automate test setups using Python/Matlab for audio and signal measurements.
  • Document test results and failure analysis.

Requirements

  • Bachelor's/Master's in Electronics, Computer Engineering, or related field.
  • 3–6 years of experience in embedded systems (preferably in audio/low-power devices).
  • Proficiency in C/C++ for embedded systems.
  • Experience with Bluetooth stacks, Classic profiles (A2DP/HFP), and BLE profiles (GATT).
  • Experience in API integration between multiple ICs (DSP, Bluetooth, sensors).
  • Strong debugging skills with oscilloscopes, logic analyzers, and JTAG/SWD tools.
  • Familiarity with audio DSP concepts (filtering, compression, gain control) a plus.
  • Experience with automated test tools and scripting (Python, Matlab preferred).

Ideal Experience Level: 3–6 years

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