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Global Navigation Satellite Systems (GNSS) space vehicles transmit the power of a lightbulb, they are 13,000 miles away, and are moving four kilometers per second. The received signals are commonly one hundred times weaker than cosmic microwave background radiation left over from the Big Bang and arrive next to interfering signals ten billion times stronger, just few MHz away. Our GNSS team is part of Apple's Cellular SoC team. We are a vertically coordinated engineering team spanning RF, mixed-signal analog design, systems engineering, RTL design, design verification, firmware and software engineering, test, and validation. Our focus is on highly energy efficient and robust GNSS receiver design. We develop GNSS technology that touches hundreds of millions of lives, something we are passionate about.

As a GNSS Measurement Engine Firmware Engineer, you will be a key member of our highly innovative GNSS design team. You will be defining firmware architecture, documenting the firmware design, developing, testing and integrating infrastructure software and digital signal processing software for novel ultra-low-power GNSS system.

• Work closely with system/algorithm team in developing GNSS baseband digital signal processing algorithms and measurement engine (ME).
• Implement new product features as part of the development of GNSS digital signal processing schemes, device drivers, and diagnostics.
• Design and write unit test for the firmware.
• Write design specification and system interface documentation.
• Partner with product test teams to resolve any issues arising as part of product and interoperability testing.

• BS and 10+ years of relevant experience
• 10 years of embedded software development experience using C, C++, as well as scripts languages such as MATLAB and Python.
• 5 years of product development experience in wireless communication, GNSS, or other relevant industry.

• MS in CS, EE, Geomatics is preferred
• Familiar with microprocessor such as ARM, RTOS, driver development for PHY hardware and peripherals such as SPI, UART, Ethernet.
• Experience in performing low-level drivers and HW bring-up, using test tools and interacting with HW and SoC design teams, implementing diagnostics, manufacturing tests, and protocol compliance test software.
• Practical experience of digital signal processing algorithm implementation in an embedded system.
• Experience in developing GNSS measurement engine (ME): acquisition, tracking, impairment, AGNSS, coexistence, multipath and jamming mitigation or other wireless location technology is a huge plus.
• Experience in embedded software architecture and optimization is a plus.

At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $171,600 and $302,200, and your base pay will depend on your skills, qualifications, experience, and location. Apple employees also have the opportunity to become an Apple shareholder through participation in Apple's discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program. Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant At Apple, we believe accessibility is a fundamental human right. You'll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong. Learn about accessibility in Apple's workplace Learn about reasonable accommodations for job applicants Apple accepts applications to this posting on an ongoing basis. Submit Resume Back to search results See all roles in Irvine