Senior Software Engineer (Windows Audio)

Quick Facts

• Role: Windows audio stack specialist (embedded audio systems and speech processing)

• Focus: audio driver/components development, real-time DSP, secure on-device model integration

• Travel: occasional 3–5 day business trips (especially at project start)

Description

Design and develop Windows audio components for embedded audio and speech processing, including Audio Processing Objects (APOs), virtual microphones, and audio drivers. Work with WASAPI, WDK, and PortCls/ACX, implement real-time DSP, and integrate/run ML models securely on PCs using ONNX/DirectML/QNN. Support HLK/WHQL certification preparation.

Responsibilities

• Design and develop APOs (Audio Processing Objects)

• Build virtual microphones and audio drivers

• Work with WASAPI, WDK, and PortCls/ACX

• Prepare solutions for HLK/WHQL certification

• Implement real-time DSP

• Integrate and run models using ONNX/DirectML/QNN

Requirements

• Extensive experience with the Windows audio stack

• Experience developing audio drivers (WDK, PortCls and/or ACX)

• Knowledge of APO and WASAPI

• Experience with the HLK/WHQL process

• Proficiency in C/C++

• Experience with real-time DSP

• Fluent English

• Willingness to travel occasionally (3–5 days)

Benefits

• Long-term opportunity with internal mobility (40%+ of the team works with the employer 5+ years)

• Learning and mentorship (60%+ have 10+ years of professional experience)

• Flexible work: fully remote, from Wroclaw office, or hybrid

• Private medical care, life insurance, sport card