Cellular PHY Systems Engineer

Socket.dev; San Diego (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Socket.dev in San Diego is seeking a Cellular System Engineer to lead pre- and post-silicon bring-up and validation of end-to-end cellular systems. You will translate system algorithms and requirements into HW/FW architectures and drive simulation- and lab-based validation of control flows and PHY/L1 algorithms.

The role demands a strong foundation in 5G NR and LTE PHY, expertise in signal processing and algorithm design, and hands-on experience with Matlab, Python, or C/C++.

Qualifications

• MS in EE or related field is required.
• Strong knowledge of 5G NR and 4G LTE PHY uplink/signals.
• Solid background in communication theory and signal processing.
• Experience with Matlab, Python or C/C++ for modeling and simulations.

Responsibilities

• Lead cellular system bring-up and validation from pre- to post-silicon.
• Map algorithms and requirements to HW/FW architecture and validation test plan.
• Perform end-to-end simulation and lab testing for control flows, OFDM, MIMO, and waveform validation.
• Collaborate with hardware and software teams to optimize performance.

Skills

5G NR

LTE

PHY / signal processing

Algorithm design

Lab validation

Education

MS in EE or related field

Tools

MATLAB

Python

C/C++

Job description

DESCRIPTION

As a Cellular System Engineer, you will be responsible for the pre- and post-silicon bring up, and validation of end-to-end cellular systems. You will understand and map systems algorithms and requirements to HW/FW architecture, simulation and emulation-based validation of the control flows and PHY/L1 algorithms.

MINIMUM QUALIFICATIONS

• MS in EE or related field.
• Knowledge of cellular communication standards: 5G NR, 4G LTE, PHY uplink channels and signals.
• Familiarity with 6G is an advantage.
• Deep-knowledge of communication system theory and signal processing will be important for this role to design algorithms such as LDPC, Polar, Turbo encoder design, signal estimation and detection, uplink power control, RF impairments estimation and correction, channel estimation, OFDM, MIMO detection, signal waveform generation and upsampling, etc.
• Experience with Matlab, C/C++ and/or Python for algorithm development, modeling (floating-point and fixed-point) and link-level simulation.

PREFERRED QUALIFICATIONS

• Experience in low power algorithm design for power critical applications is helpful.
• Experience in E2E timeline analysis for time-critical algorithms is helpful.
• Experience in chip bring-up including the use of lab equipment such as protocol test equipment, spectrum analyzers, signal generators, power meters, etc..
• In-depth knowledge of wireless communication systems with hands-on experience in lab testing & characterization.
• Strong analytical skills (linear algebra, random processes, detection and estimation, etc.)