Search jobs > Sunnyvale, CA > Performance engineer

Cellular System Performance Engineer

Apple
Sunnyvale
Full-time

Summary :

Do you have a passion for invention and self-challenge? This role is at the center of a silicon design group responsible for crafting and productizing innovative cellular SoCs! As a cellular system performance engineer, you will be responsible for the bringup and validation of end-to-end cellular systems.

Join us, and help us innovate new wireless systems technologies that continually outperform the previous iterations! By collaborating with other product development groups across Apple, you’ll push the industry boundaries and improve the product experience for our customers across the world.

Key Qualifications :

Experience in bring up or performance characterization of wireless systems focusing on the PHY and RF layers. Hands-on experience in cellular chipsets is helpful.

Solid understanding of communication theory and signal processing, AGC, beamforming, Tx power control, mitigation of radio impairments, and calibration algorithms.

Strong technical background in wireless system physical layer and protocols. Work experience in 5G-NR / LTE / UMTS (3G / 2G) / WiFi is a plus.

Knowledge of RF performance metrics such as EVM, spectral mask, frequency error, power accuracy, etc. Working understanding of multiple 4G / 5G signaling, and wireless physical layer test equipment (Keysight / LitePoint / Anritsu / R&S) along with their automation interfaces is nice to have.

Hands-on experience in bring up of RFIC in the lab, ability to efficiently use lab equipment (such as VSA, VSG, spectrum analyzer, signal generator, power meter, etc).

Good experience with Python, C / C++, Matlab, and efficient analysis and automation scripting. Knowledge and understanding of 3GPP specs are desirable.

Experience with silicon prototyping, emulation systems, and virtual platforms is a plus. Experience with analytics platform software (Tableau, Spotfire or similar) a plus.

Description :

Working on the bringup of the cellular end-to-end system including characterization and optimization of RF and system performance in the lab with an emphasis on 5G-NR.

Collaborate with multi-functional teams to validate the data and control flows from the Baseband to RF in terms of the various critical metrics.

Measure, prioritize, and analyze important metrics data in the lab, and present them with analytics tools.Conduct pre-silicon emulation-based bringup and validation of the cellular system.

And simulation-based validation of the control flows and algorithms.Support and maintain high-quality daily Firmware releases.

Additional Requirements :

30+ days ago
Related jobs
Promoted
Apple
Sunnyvale, California

Do you have a passion for invention and self-challenge? This role is at the center of a silicon design group responsible for crafting and productizing innovative cellular SoCs! As a cellular system performance engineer, you will be responsible for the bringup and validation of end-to-end cellular sy...

Promoted
Apple, Inc.
Sunnyvale, California

Do you have a passion for invention and self-challenge? This role is at the center of a silicon design group responsible for crafting and productizing innovative cellular SoCs! As a cellular system performance engineer, you will be responsible for the bringup and validation of end-to-end cellular sy...

Promoted
Apple Inc.
Sunnyvale, California

Do you have a passion for invention and self-challenge? This role is at the center of a silicon design group responsible for crafting and productizing innovative cellular SoCs! As a cellular system performance engineer, you will be responsible for the bringup and validation of end-to-end cellular sy...

Promoted
Apple
Sunnyvale, California

With the latest developments in cellular, we apply a sophisticated simulation platform to study performance of our devices in complicated radio and network conditions and gain insights for system design. We are looking for an expert PHY Systems Engineer who has a deep understanding of wireless techn...

Promoted
Replicate
CA, United States

You have a deep passion for squeezing every ounce of performance out of complex systems, whether that's rendering the latest AAA game title or optimizing large-scale distributed systems. You're an engineer who dreams in cycles and optimizations. We're looking for someone who can bring their performa...

Promoted
Apple
Cupertino, California

We are looking for highly motivated and passionate systems software engineers to create a secure Perception Systems software architecture for Apple platforms. The Audio & Media Technologies group in Apple's Software Engineering organization is building a Perception Systems team to develop a secure s...

Apple
Sunnyvale, California

In this role, you will join the system engineering team working on best-in-class modem platforms, developing innovative algorithms and leveraging our unique end-to-end design. Do you love working on challenges that no one has solved yet? Are you ready to join a team transforming hardware technology?...

NVIDIA
Santa Clara, California

Analyze full stack performance ranging from application level through libraries, system software, kernel software and hardware. Experience with performance tuning of device drivers or low level system software. We are hiring senior engineers to work on the CUDA driver and runtime, core components of...

Apple
Sunnyvale, California

Implement system models and perform detailed performance investigations to allow performance sign-off and enable RTL development. In this role, you will join the system engineering team working on best-in-class modem platforms, developing innovative algorithms and leveraging our unique end-to-end de...

Apple
Sunnyvale, California

With the latest developments in cellular, we apply a sophisticated simulation platform to study performance of our devices in complicated radio and network conditions and gain insights for system design. We are looking for an expert PHY Systems Engineer who has a deep understanding of wireless techn...