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RF PLL Silicon Validation Engineer

Apple6,366 open roles

Where
Linz, Austria
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Your applicationOpen nowRF PLL Silicon Validation EngineerApple · Linz, Austria

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The clock on this job

Early applications get read.

13.4% of postings close within 7 days. Measured by our own scanner across the market. Apple postings stay open a median of 41 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.6%3 days
  3. 13.4%7 days
  4. 21.6%14 days
  5. 36.2%30 days
  6. 59.0%60 days
This job: posted today

Apple median: 41 days open

The posting

Summary

Imagine what you could do here. At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. Bring passion, dedication, and a no-excuse mindset to your job and there's no telling what you could accomplish. Smart people and inspiring, innovative technologies are the norm here.

Our team is responsible for validating the RF performance of top-notch, monolithic cellular transceivers. We are looking for an experienced RF engineer to lead the validation of complex PLL and frequency synthesis subsystems. In this role, you will work cross functionally with Design, Firmware, and System teams to ensure our silicon meets rigorous specifications. You will drive our shift to agentic engineering, scaling validation throughput with AI agents without compromising the quality bar, to enable uncompromised connectivity in future Apple products.

Description

As an RF PLL Silicon Validation Engineer, you will own the bring-up and characterization of frequency generation subsystems in market-leading transceivers. Your work style is collaborative and proactive, driving technical solutions across interdisciplinary teams. You will work in an agentic work flow, you scope the problem and define pass/fail criteria, delegate implementation and execution to AI agents, and verify every result against the specification.

Responsibilities

Defining validation strategies, executing complex measurements, and analyzing performance against specifications Architecting efficient validation solutions through agentic engineering, articulating clear specs and acceptance criteria, delegating implementation to AI agents, and verifying results with deterministic checks and independent reviews Developing scalable automation frameworks and data analysis tools that are well documented and usable by both engineers and AI agents Reporting technical results clearly and in a cross functional team to debug hardware and software issues, ensuring the highest quality for Apple's wireless products.

Minimum Qualifications

Strong cross-functional leadership skills; ability to communicate complex technical findings clearly to Chip Design, Firmware, and System Verification teams. Expertise in Python for test automation and data analysis (NumPy/Pandas), and demonstrated experience working with AI coding agents beyond script generation, delegating multi-step tasks, defining acceptance criteria, and validating agent output against specifications. Proven track record in systematically debugging complex silicon issues and isolating 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.

Preferred Qualifications

Deep understanding of RF transceiver architecture with specific expertise in frequency synthesis (PLLs, DCOs) and key metrics like Phase Noise, Lock Time, and Cross-Talk Isolation. Experience with cellular standards (5G NR, LTE) and mixed-signal building blocks (ADCs/DACs) is highly desirable. Master's or PhD in Electrical Engineering or equivalent with 5+ years of relevant experience in RF/Mixed-Signal validation or design. Experience building agentic workflows or tooling (e.g., custom agents, tool integrations, LLM-driven test automation) in an engineering environment.

Pay & Benefits

At Apple, base pay is one part of our total compensation package and is determined within a range. This range provides the opportunity to progress as you grow and develop within a role. The base pay for this role is between €95,000 and €187,900 and reflects a full-time equivalent. Your base pay will depend on contractual hours, skills, qualifications, experience, location, and any relevant collective bargaining agreement provisions.

Apple employees are eligible to participate in the Apple Inc. discretionary stock programs. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. You'll also receive benefits including: Comprehensive insurance benefits, retirement benefits, a range of discounted products and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition. Learn more about Apple Benefits

Note: Apple benefit, compensation and discretionary stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

EEO Statement

At Apple, we're not all the same. And that's our greatest strength. We draw on the differences in who we are, what we've experienced, and how we think. Because to create products that serve everyone, we believe in including everyone. Therefore, we are committed to treating all applicants fairly and equally. We will work with applicants to make any reasonable accommodations.

Accessibility

At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong.

Learn about accessibility in Apple’s workplace

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