Senior Firmware Engineer at Quest Global

Mumbai, maharashtra, India -

Full Time

Start Date

Immediate

Expiry Date

13 Jun, 26

Salary

0.0

Posted On

15 Mar, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Firmware Architecture, Embedded Systems, Qualcomm, Bluetooth Classic, BLE, LE-Audio, Audio DSP, ANC, ENC, Microphone Arrays, Wi-Fi, RTOS, C/C++, JTAG/SWD, TWS, Power Optimization

Industry

Engineering Services

Description

Job Requirements At Quest Global, it’s not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place—to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster. Role Summary We are hiring a Senior Firmware Engineer with strong ownership and deep technical expertise in building and optimizing firmware for audio products like earbuds, headphones, and smart speakers. The ideal candidate has 5+ years of experience developing embedded systems on Qualcomm, Bluetrum, Jieli, Airoha, Realtek, or similar audio-centric SoCs. You will drive the firmware architecture across Bluetooth (Classic/BLE/LE-Audio), Audio DSP pipelines (ANC, ENC, EQ), microphone arrays, speakers, and optional Wi-Fi subsystems, ensuring world-class performance, stability, and low power consumption across our audio product portfolio. Key Responsibilities Firmware Architecture & Development Architect and develop firmware for audio products (earbuds, headphones, speakers) on Qualcomm QCC/QCS series, Bluetrum BT/BLE audio SoCs, Jieli AC-series, Airoha AB-series, Realtek audio SoCs or equivalent Implement and optimize drivers, BSP, HAL layers, and RTOS-based application frameworks. Develop system services for Audio routing and switching, Bluetooth stack integration, Multi-mic processing, Battery, charging, PMU control, Touch/gesture/physical button inputs Audio DSP Pipeline Development Develop and integrate DSP algorithms on SoCs with proprietary cores (Qualcomm Kalimba DSP, Bluetrum DSP, Jieli DSP, Airoha DSP) with ANC (Feedforward/Feedback/Hybrid), ENC, Beamforming, Wind Noise Reduction, EQ Filters (FIR/IIR), Bass enhancement, spatial audio, 3D audio Configure and tune I2S/TDM, multi-channel capture/playback, Audio codecs (AAC, SBC, aptX, LDAC, LC3) Bluetooth Stack Integration Implement and debug Bluetooth stack components: Bluetooth Classic: A2DP, HFP, HSP, AVRCP BLE: GATT, custom services LE Audio: LC3, Broadcast Audio, Multi-Stream Audio Deep understanding of BT RF behavior, coexistence, Link layer events, sniff modes, power states Vendor-specific controller and host stack customization Wi-Fi Stack Integration Integrate Wi-Fi stack and connectivity modules: Wi-Fi 4/5/6/6E (2.4/5/6 GHz) WPS, WPA2/WPA3, provisioning flows Develop firmware for Multi-room audio protocols Optimize coexistence between Wi-Fi + Bluetooth System-Level Power, Performance & Stability Optimize system-level power using C-states, clock gating, sleep modes, DVFS, PMIC configuration Adaptive audio routing & sidetone optimization Ultra-low-power performance for TWS earbuds (

Responsibilities

The Senior Firmware Engineer will architect and develop firmware for audio products like earbuds and speakers, focusing on optimizing performance, stability, and low power consumption across various SoC platforms. Key duties include implementing drivers, developing system services, integrating DSP algorithms for audio processing, and managing Bluetooth/Wi-Fi stack integration.