About The Position
Apple is seeking an experienced RF engineer to lead validation of complex PLL and frequency-synthesis subsystems in monolithic cellular transceivers. The role owns bring-up and characterization of frequency-generation subsystems and works cross-functionally with Design, Firmware, and System teams to ensure silicon meets specifications. The engineer defines validation strategies, performs complex measurements, and analyzes performance against specifications. They also develop scalable automation frameworks and data-analysis tools, using an agentic workflow to scope problems, define pass/fail criteria, delegate implementation and execution to AI agents, and verify results through deterministic checks and independent reviews. The role includes communicating technical findings and helping debug hardware and software issues to support the quality of Apple wireless products.
Requirements
- Master's or PhD in Electrical Engineering or equivalent.
- At least 5 years of relevant experience in RF/mixed-signal validation or design.
- Expertise in Python for test automation and data analysis, including NumPy and Pandas.
- Demonstrated experience using AI coding agents for multi-step tasks, including defining acceptance criteria and validating output against specifications.
- Proven ability to systematically debug complex silicon issues and isolate root causes across hardware, firmware, or test setups.
- Hands-on mastery of RF lab equipment, including spectrum/phase-noise analyzers, VNAs, and high-speed oscilloscopes.
- Deep understanding of RF transceiver architecture, particularly frequency synthesis (PLLs, DCOs) and metrics such as phase noise, lock time, and cross-talk isolation.
- Strong cross-functional leadership and communication skills, including communicating complex technical findings to Chip Design, Firmware, and System Verification teams.
Nice To Haves
- Experience with cellular standards such as 5G NR and LTE.
- Experience with mixed-signal building blocks such as ADCs and DACs.
- Experience building agentic workflows or tooling in an engineering environment, such as custom agents, tool integrations, or LLM-driven test automation.
Responsibilities
- Lead validation of complex PLL and frequency-synthesis subsystems.
- Own bring-up and characterization of frequency-generation subsystems in cellular transceivers.
- Define validation strategies, execute complex measurements, and analyze performance against specifications.
- Architect efficient validation solutions using agentic engineering: define specifications and acceptance criteria, delegate implementation to AI agents, and verify results.
- Develop scalable, well-documented automation frameworks and data-analysis tools usable by engineers and AI agents.
- Report technical results clearly and collaborate across teams to debug hardware and software issues.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
