Wireless Systems Engineer at Apple
4 weeks ago
At Apple, we are seeking a highly skilled Wireless Systems Engineer to join our dynamic team. As a member of our silicon design group, you will be responsible for using digital algorithms to improve the efficiency of power amplifiers in wireless transmitters, reducing power consumption while maintaining acceptable linearity for high data rate applications.
**Key Responsibilities:**
- Design and simulate state-of-the-art wireless transmitters for very high data rate applications.
- Investigate innovative PA architectures, calibration algorithms, and processing structures for performance enhancement.
- Architect HW/FW/SW partitioning of various calibrations for area and time efficiency.
- Implement system models of the analog front-end design, impairments, and come up with right controls and calibrations in C and MATLAB for optimal system performances.
**Requirements:**
- BS and a minimum of 10 years relevant industry experience.
- Experience in designing relevant signal processing for wireless communications systems.
- Understanding of methods to estimate various RF impairments via direct equipment measurement or self-testing via loopback.
- Experience with MATLAB or Python and/or C/C++ for algorithm development, modeling, and simulation.
**Preferred Qualifications:**
- MSEE/PhD with relevant experience.
- Proven track record of optimization algorithm and its applications to RF calibration.
- Previous experiences on digital predistortion, crest-factor reduction, nonlinear crosstalk/interference cancellation, and real-chip bring-up in lab.
**About Apple:**
At Apple, we work every single day to craft products that enrich people's lives. We are committed to inclusion and diversity, and we take affirmative action to ensure 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.
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