Senior Windows Audio Software Engineer

About the project

You will join a CSHARK team delivering a project for our client, a technology company developing on-device audio and speech solutions.

Your main focus will be integrating the client's audio technology into Windows PCs, working across the Windows audio stack, from audio processing components and virtual devices to system-level drivers.

You will also work with real-time audio processing and on-device machine learning to ensure reliable, secure and efficient performance on Windows devices.

In short

• 100% remote or from the office (Wrocław, Bielsko-Biała) - You choose!
• 140 - 190 PLN/h
• B2B contract

Your responsibilities

• Develop and maintain Windows audio components, including Audio Processing Objects (APOs), virtual microphones and virtual audio drivers.
• Work with Windows audio technologies, including WASAPI, WDK and PortCls/ACX.
• Implement and optimise real-time audio processing and DSP algorithms in C/C++.
• Prepare and validate audio components through Windows HLK testing and WHQL certification.
• Integrate on-device machine learning inference using ONNX Runtime, DirectML and Qualcomm QNN.
• Ensure secure, stable and efficient execution of audio components and ML models on Windows PCs.

What we expect

• Senior-level experience in Windows audio software development.
• Hands-on experience with Audio Processing Objects (APOs) and/or Windows audio drivers.
• Strong programming skills in C/C++ and experience with real-time audio DSP.
• Practical knowledge of WASAPI and Windows audio architecture.
• Experience with Windows Driver Kit (WDK), PortCls or Audio Class Extensions (ACX).
• Experience with Windows HLK testing and WHQL certification.
• Fluent English.

Nice to have

• Experience with ONNX Runtime, DirectML or Qualcomm QNN.
• Knowledge of NPU acceleration on Windows on ARM or x86 AI PCs.
• Experience with secure code and machine learning model deployment on Windows.

What we offer

• A fully remote role on a long-term project for an international client.
• Work on cutting-edge AI technology.
• A team of experienced engineers and direct contact with the client’s R&D.
• Stable cooperation with CSHARK, plus support from our delivery and people teams throughout the project.