Radio Frequency Engineer

OSI Engineering; Cupertino (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

OSI Engineering in Cupertino is seeking an experienced RF Engineer to join their team. You will execute NPI WiFi/BT CoEx performance testing for NPI devices based on defined coverage and calibrate test stations with scripts and config files.

Responsibilities include first-level triage of RF tests, data post-processing for MOS/CoEx reports, and coordinating with 3rd-party labs to ensure data accuracy across WiFi/BT/Cell/GNSS CoExistence.

Qualifications

• Bachelor’s degree in electrical engineering.
• Experience testing multi-radio coexistence (Cellular, Wi‑Fi, BT, GNSS) for throughput, MOS, glitches.
• Hands-on RF lab equipment experience (spectrum analyzer, network analyzer, signal generator).

Responsibilities

• Execute NPI WiFi/BT CoEx performance testing for NPI devices based on defined coverage.
• Maintain test stations on calibration, scripts, config files and equipment.
• Perform first-level issue triage for conducted and radiated performance testing using sniffer; validate CoEx policies and regressions.
• Post-process RF CoEx performance data and generate quality reports on throughput, MOS, and GPM detection.
• Execute competitor study first-level issue trouble-shooting with 3rd-party labs to ensure data accuracy for WiFi/BT/Cell/GNSS CoExistence.
• Provide onsite technical support at 3rd-party labs to assist in new test bring-up and test setup maintenance.
• Track competitor study test progress across 3rd-party labs to ensure timely data delivery.
• Manage vendor logistics and PR/PO processes, including tracking vendor BPO balance, procuring competitor devices and RF equipment/accessories.

Skills

RF test automation

Scripting (Python)

Lab equipment handling

Education

Bachelor's degree in electrical engineering

Tools

Spectrum Analyzer

Network Analyzer

Signal Generator

Sniffer

Job description

A globally leading consumer device company headquartered in Cupertino, CA is looking for a RF Engineer to join their team.

Job Responsibilities

• Execute NPI WiFi/BT CoEx performance testing for NPI devices based on defined coverage. Maintain test stations on calibration, scripts, config files and equipment.
• Perform first-level issue triage for conducted and radiated performance testing using sniffer, validate CoEx policies, identify internal OS regressions.
• Post-process RF CoEx performance data and generate quality reports on throughput, MOS, and GPM e.g., audio test for Glitch Per Minute (GPM) detection, Adobe Audition/POLQA for MOS scores.
• Execute competitor study first-level issue trouble-shooting with 3rd-party labs to ensure data accuracy for WiFi/BT/Cell/GNSS CoExistence.
• Provide onsite technical support at 3rd-party labs to assist in new test bring-up, test setup maintenance to resolve execution issues.
• Track competitor study test progress across 3rd-party labs to ensure timely data delivery and on-demand test needs.
• Manage vendor logistics and PR/PO processes, including tracking vendor BPO balance, procuring competitor devices and RF equipment/accessories.

Key Qualifications

• Bachelor’s degree in electrical engineering with 5+ years relevant work experience.
• Experience with testing system performance of multi-radio coexistence for various wireless technologies (e.g., Cellular, Wi-Fi, BT, GNSS) in throughput, MOS, glitches, carrier-noise.
• Foundational knowledge of artificial intelligence with hands-on experience.
• Hands-on knowledge of RF lab equipment including spectrum analyzer, network analyzer, signal generator and sniffer.
• Programming experience of RF test automation
• Knowledge of wireless architectures including front-end, antenna sharing, link budget.
• Ability to travel domestically up to 10%.