Job Description

System high-speed I/O validation Engineer - Apple Mac **Cupertino, California, United States** **Hardware** **Summary** Posted: **Jun 17, 2025** Weekly Hours: **40** Role Number: **200608066** This is a system-level validation role within the Mac Hardware organization, specifically in the SerDes I/O validation for Mac Platforms. The candidate's responsibilities include setting up and executing I/O electrical compliance flow bringups for Mac platforms, testing Mac platforms to stress-test I/Os in systems, and collecting metrics. Additionally, they will be involved in high-speed validation and electrical compliance testing of I/Os for form-factor systems. The candidate will collaborate closely with cross-functional teams, such as system signal integrity, silicon design, or system design teams. While the role primarily focuses on lab validation activities related to system-level signal integrity, there are also validation responsibilities for high-speed cables and fixtures. Come join us! **Description** In this role you will: Execute high-speed serial I/O electrical compliance tests Organize compliance data reports for comparison against specs and approval by certification Orgs Troubleshoot and triage issues with compliance test hardware, fixtures, software, and the DUT (Device Under Test) Failure analysis feedback for iterative HW design/SW Tunable improvements Define and develop methods for stress testing to identify design operating limits of Serial IOs post system integration Validation of high-speed fixtures, connectors, cables, and Mac IOs Develop python based scripts to speed up automation and data collection **Minimum Qualifications** + M.S Degree with 2~3 years relevant work experience + Familiarity with all aspects of Signal Integrity for high speed SerDes, parallel bus, single ended signaling + Ability to execute on channel analysis with Signal integrity EDA + Measurement expertise with frequency and time domain tools (VNA, TDR) including calibration methods + Familiarity with some levels of USB4/TBT3 electrical compliance testing or specifications **Preferred Qualifications** + M.S. Degree with 5 to 10 years of relevant work experience. + Deep knowledge of system-level Serdes design and analysis skills is required. This includes understanding of transmitter and receiver equalization methods (such as FFE, CTLE, DFE, VGA gain), CDR behaviors and modeling, link training algorithms, and eye margining tools. + Serial bus expertise includes knowledge of the specifications of PCIe, USB, DisplayPort, HDMI, and Thunderbolt. SI skills required include DOE analysis across channel variants, applying equalization and training as necessary for end-to-end channel analysis + Excellent documentation and communication skills, the ability to work independently, a desire to mentor, and demonstrated innovation are essential. + The ability to multi-task and drive multiple issues to closure is also necessary. + Familiarity with DP and USB4/TBT specifications as well as Matlab and python for scripting purposes are a plus. **Pay & Benefits** At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $143,100 and $264,200, and your base pay will depend on your skills, qualifications, experience, and location. Apple employees also have the opportunity to become an Apple shareholder through participation in Apple's discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation.Learn more about Apple Benefits. ( Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program. Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.Learn more about your EEO rights as an applicant ( . Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.Learn more about your EEO rights as an applicant ( . Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation. Apple participates in the E-Verify program in certain locations as required by law.Learn more about the E-Verify program ( . Apple is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. Reasonable Accommodation and Drug Free Workplace policy Learn more . Apple is a drug-free workplace. Reasonable Accommodation and Drug Free Workplace policy Learn more . Apple will consider for employment all qualified applicants with criminal histories in a manner consistent with applicable law. If you're applying for a position in San Francisco, review the San Francisco Fair Chance Ordinance guidelines applicable in your area. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

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