Senior Firmware Engineer - Bluetooth / BLE (WuQi Platform)

Almaz Capital; Graz; On-site; EUR 45,000 - 60,000; Full time

Benefits offered by this job

Flexible working time

Free parking

Canteen and snack buffet

Bonuses and profit sharing

Lunch subsidies

Job summary

USound in Graz, Austria, seeks a Senior Firmware Engineer specializing in Bluetooth and the WuQi platform to design, implement, and optimize low-power firmware for wireless devices in wearable audio products.

You will collaborate with hardware and software teams, contribute to architecture, and participate in code reviews while leveraging C/C++ in an RTOS environment.

Qualifications

• Master’s degree in Electrical Engineering, Computer Engineering, or Computer Science.
• More than 6 years of experience as a Firmware Engineer.
• Strong understanding of Bluetooth (Classic, BLE, ATT/GATT) protocols.
• Experience with Bluetooth integration on Android and Windows platforms.
• Hands-on experience with the WuQi TWS platform (SDKs, development tools, debugging).
• Proficiency in C/C++ for embedded systems.
• Knowledge of embedded RTOS, device drivers, and hardware interfaces (SPI, I2C, UART, GPIO).
• Experience with debugging tools (oscilloscopes, logic analyzers, protocol analyzers, JTAG).
• Understanding of low-power design and optimization for wireless devices.
• Solid problem-solving ability and teamwork.

Responsibilities

• Design, implement, and maintain firmware for Bluetooth devices on the WuQi TWS platform.
• Collaborate with hardware and software teams for system-level integration.
• Optimize low-power wireless communication features and performance.
• Debug and resolve firmware issues using structured analysis.
• Contribute to firmware architecture, design, and documentation.
• Participate in code reviews and follow best practices in embedded development.

Skills

Bluetooth Classic

BLE

C/C++

Embedded systems

RTOS

Debugging tools

Education

Master’s degree in Electrical Engineering, Computer Engineering, Computer Science

Tools

WuQi TWS platform

SDKs

JTAG/oscilloscopes

Job description

Senior Firmware Engineer - Bluetooth / BLE (WuQi Platform)

Graz, Austria

USound is disrupting the audio industry, setting new standards in audio experience, and maximizing the degrees of freedom for wearables and hearables.

We are leaders in acoustic solutions based on MEMS speakers byenabling our customers to bring new revolutionary audio products to the market. USound achieves this through radical miniaturization, power reduction, and increased production efficiency.

We’re looking for a skilled Firmware Engineer to join our team and drive innovation in wireless connectivity. This position focuses on Bluetooth (Classic, BLE, Attribute Profiles for data transfer) with specialization on the WuQi platform. You’ll be crafting reliable, efficient firmware that enables seamless communication and smooth user experiences in consumer devices.

Responsibilities

• Design, implement, and maintain firmware for Bluetooth devices on the WuQi TWS platform.
• Collaborate with hardware and software teams for system-level integration.
• Optimize low-power wireless communication features and performance.
• Debug and resolve firmware issues using structured analysis.
• Contribute to firmware architecture, design, and documentation.
• Participate in code reviews and follow best practices in embedded development.

Experience and Qualifications

• Master’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related field.
• >6 years experience as a Firmware Engineer
• Strong understanding of Bluetooth (Classic, BLE, Attribute Profiles/ATT/GATT) protocols.
• Experience with Bluetooth integration on Android and Windows platforms.
• Hands-on experience with the WuQi TWS platform (SDKs, development tools, debugging).
• Proficiency in C/C++ for embedded systems.
• Knowledge of embedded RTOS, device drivers, and hardware interfaces (SPI, I2C, UART, GPIO).
• Experience with debugging tools (oscilloscopes, logic analyzers, protocol analyzers, JTAG, etc.).
• Understanding of low-power design and optimization for wireless devices.
• Solid problem-solving ability and teamwork skills.

Bonus Skills

• Familiarity with audio streaming protocols.
• Understanding of audio signal paths and foundational concepts in digital audio processing
• Experience with agile development and version control (Git).

Who you are

You’re a experienced firmware engineer with a strong grasp of Bluetooth (Classic and BLE) protocols and embedded systems. You thrive on solving challenges and quickly become productive, even in fast-paced and evolving projects.

What we offer

• Opportunity to work on cutting-edge applications in wearable audio and ultrasonic tech.
• Fast-moving, focused team with minimal overhead.
• Flexible working time and goal-oriented work environment.
• Range of the annual gross salary from € 60,000 depending on experience, qualifications, etc; legal minimum annual gross salary on a full-time basis: € 45,207.68.
• At our location you will find free parking slots, a canteen and a snack buffet.
• Additional incentives including bonuses and profit-sharing opportunities.

• Benefits: We offer a range of perks including lunch subsidies, language courses, well-being and summer childcare subsidies, future provision, and many more. At our location you will find free parking slots, a canteen and a snack buffet.