Apple

Wireless Firmware Engineer

Apple  •  Shanghai, CN (Onsite)  •  2 hours ago
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Job Description

Summary

Would you like to join Apple’s growing Wireless Connectivity Silicon team? Our wireless System on a Chip (SoC) organization is responsible for all aspects of wireless silicon development with a particular emphasis on highly energy efficient design and new technologies that transform the user experience at the product level, all of which is driven by a world-class vertically integrated engineering team spanning RF/Analog architecture and design, Systems/PHY/MAC architecture and design, VLSI/RTL design and integration, Emulation, Design Verification, Test and Validation, and FW/SW engineering. In this highly visible role, you will be at the center of a silicon design group with a critical impact on getting functional wireless products to hundreds of millions of customers! Responsible for crafting and implementing embedded firmware for SoC bring up and wireless connectivity enablement. You will work closely with product software and manufacturing teams to enable RF and PHY calibrations, algorithms and testing to enable productization of the silicon / system.

Description

As an Embedded FW Engineer, the individual will be a core member of a Wireless SoC firmware team, with emphasis on PHY bring up, RF calibrations, signal processing algorithm implementation and performance tuning

Work closely with product SW and manufacturing teams to provide system-level API and firmware functionality to meet productization needs. Develop SoC test and calibration capabilities for wafer, module, and system factories.

Collaborate with RF/Radio design, DVT, PHY and System engineering teams to architect, define and implement innovative algorithms, calibrations and protocols.

Debug realtime systems with limited visibility, working hands-on with development boards and lab equipment.

Support pre-silicon validation efforts, including simulation, emulation, and FPGA prototyping.

Support post-silicon bringup, validation, performance characterization, system integration and debug.

Preferred Qualifications

Strong background in embedded FW development using C and assembly languages, familiarity with ARM CPUs and its internals.

Good understanding of embedded wireless communication systems, Radio and PHY fundamentals and key RF performance metrics. Familiarity with digital signal processing algorithms

Understanding python match library like numpy/SciPy and how to convert it to embedded C.

Understanding difference between fix point and floating points and how to make arithmetic tradeoff and simplify embedded usage.

Experience with low-level hardware interfaces, register and interrupt programming, bare-metal software development, clock and power management.

Solid understanding of basic embedded concepts such as RTOS, concurrency, multi-processor systems.

Fluency in using lab equipment such as logic analyzers, oscilloscopes, network analyzers, spectrum analyzers, signal generators, power meters etc.

Experience implementing diagnostics, manufacturing tests, and protocol compliance software.

Knowledgeable of industry standards for wireless communications such as Bluetooth, WLAN, Zigbee, UWB is a plus.

Proficient in at least one of the scripting languages such as Python, Perl, or Tcl

Excellent communication skills – both written and oral.

Minimum Qualifications

BS and 3+ years of relevant industry experience

Embedded systems knowledge including:

multi thread environment

Interrupt thread processing/latency

Multi core environment

HW/FW semaphores/resource management

Apple

About Apple

We’re a diverse collective of thinkers and doers, continually reimagining what’s possible to help us all do what we love in new ways. And the same innovation that goes into our products also applies to our practices — strengthening our commitment to leave the world better than we found it. This is where your work can make a difference in people’s lives. Including your own.

Apple is an equal opportunity employer that is committed to inclusion and diversity. Visit apple.com/careers to learn more.

Industry
Hardware & Semiconductors
Company Size
10,000+ employees
Headquarters
Cupertino, California
Year Founded
1976
Website
apple.com
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