Sr. Software Engineer - Radio

About the Company

Ambiq is on a mission to enable intelligence everywhere — powering the AI edge revolution with the world's lowest-power semiconductor solutions. Built on proprietary sub- and near-threshold technology, our chips deliver multi-fold improvements in energy efficiency without costly process scaling. Since 2010, we've shipped over 300 million units to customers building smarter wearables, medical devices, IoT products, and AI-powered edge applications. Our cross-functional teams span design, research, development, production, marketing, sales, and operations across Austin, Hsinchu, Shanghai, Shenzhen, and Singapore. We move fast, tackle hard problems, and create space for people to grow through complex, meaningful work that shapes the future of technology. We live by five values: Innovate, Collaborate, Focus, Learn, Achieve.

About the Role

As a senior radio software engineer at Ambiq, you will drive wireless software development for the Apollo Blue family and develop wireless software solutions (implement specifications, design software, and unit test). This role involves working with cross-functional teams to integrate and debug wireless components on the company’s platform. You will scope software development work, delegate tasks, identify resource/technical gaps, and take the initiative to tackle challenging technical issues by seeking support from across teams. You will also write technical documents, including white papers, architecture diagrams, modules, and API descriptions.

Responsibilities

• Develop wireless solutions and implement new feature development.
• Perform code review, code optimization, refactoring, bug hunting, and bug fixing.
• Assist the FAE team in customer development issue support.
• Produce unit, functional, integration, and interoperability tests, including automating tests when advantageous.
• Work with the Product Planning Team to understand system requirements.
• Work with validation and system test teams to triage issues and communicate their status to management.

Requirements

• Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or related field.
• 5+ years of experience with 802.15.4 technology, including Zigbee or Thread software debugging experience with sniffer tools and protocol analyzers.
• Familiar with engineering best practices: git version control, unit-tests, and continuous integration.
• Fluent in low-level software debugging skills using GDB, emulators, JTAG, and more.
• Expert knowledge of performance and power optimization.
• Experience with Zephyr.
• Experience with peripheral protocols: I2C, I2S, MSPI, UART, PDM, TDM, etc.
• Experience with Bluetooth/BLE or RF tuning/calibration is a plus.
• Strong communication skills; excellent technical communication with peers.
• Intimate familiarity with OpenThread.
• Extensive experience in developing deeply embedded applications for wireless silicon.
• Proficiency in analyzing RF and firmware issues using an air sniffer, logic analyzer, etc.