Embedded Software Engineer C++/Bluetooth- 100 EURO Per hour - ZZP

About the Role

One of the worlds leading audio equipment manufactures is looking for an experienced Freelance Embedded Software Engineer to support the final development, validation, and production launch of a next-generation active earbud product.

This role provides additional engineering capacity during the critical validation and production phases, helping ensure a successful transition from development to mass production and commercial launch.

You'll focus on firmware stabilization, system integration, debugging complex issues, and delivering production-ready firmware. Working closely with Electrical Engineering, Mobile Software Engineering, and Software QA, you'll help resolve technical challenges and ensure a successful product launch.

What You'll Deliver

• Stabilize, optimize, and debug Embedded firmware across audio, Bluetooth (BLE + BR/EDR), and power management.
• Investigate and resolve complex firmware issues impacting audio performance, connectivity, battery life, and overall system reliability.
• Support DVT, PVT, and manufacturing builds by resolving release-blocking issues and improving firmware quality.
• Collaborate with Electrical Engineering, Mobile Software Engineering, and Software QA to resolve integration issues and support production readiness.
• Contribute to firmware releases by identifying technical risks and driving timely resolution.

What We're Looking For

• Strong Embedded C/C++ experience on ARM-based Embedded platforms, ideally with multi-core SoCs.
• Experience developing Bluetooth (BLE + BR/EDR) firmware for consumer electronics or other battery-powered devices.
• Experience with Embedded audio products such as earbuds, headphones, or wearables

This is a wonderful opportunity to join a leading audio company at the forefront of mobile audio tech engineering. The daily rate is up to 100 euro per hour for an initial contract until the end of December 2026.