Senior High-Speed SI Engineer for Data Center Interconnects

Amphenol Communications Solutions; Yocumtown (PA); On-site; USD 120,000 - 180,000; Full time

Job summary

Amphenol Communications Solutions (ACS) is seeking a Senior Signal Integrity Engineer in Valley Green, PA. You will design, characterize and qualify high-speed RF cable assemblies for data center interconnects, using VNA, TDR and BERT, and you will run simulations (HFSS/ADS) to ensure performance targets at 224G/448G PAM4.

You will work with mechanical and manufacturing teams to optimize cable construction, termination geometry, and materials, while developing automation scripts and data

Qualifications

• BS or MS in Electrical Engineering or related field.
• 3+ years in signal integrity, RF/microwave, or high-speed interconnect design.
• Hands-on with VNA, TDR/TDT, and BERT equipment.
• Strong transmission-line theory, impedance matching, and high-speed channel design (112G/224G NRZ/PAM4).
• Proficiency with S-parameter analysis tools and EM simulation software (HFSS, ADS).
• Working knowledge of Python or MATLAB for data analysis and automation.
• Familiarity with copper/twinax cable construction and mating interfaces.

Responsibilities

• Perform S-parameter measurements (VNA) and TDR on cable assemblies to characterize insertion loss, return loss, crosstalk, and impedance discontinuities.
• Conduct BERT-based BER testing and eye-diagram analysis to validate SI margins.
• Support 3D EM simulations of terminations and interfaces to correlate with measurements.
• Drive root-cause analysis on SI failures and recommend design or process actions.
• Collaborate with mechanical and manufacturing teams on construction, termination geometry, and materials affecting performance.
• Develop/test fixtures and data pipelines (Python/MATLAB) for high-throughput characterization.
• Present findings and risk assessments to stakeholders and customers.

Skills

Signal integrity

RF/microwave engineering

High-speed interconnect design

S-parameter analysis

Python/MATLAB data analysis

Education

B.S./M.S. in Electrical Engineering

Tools

HFSS

ADS

Python

MATLAB

VNA (equipment)

Job description

Amphenol Communications Solutions (ACS) is seeking a Senior Signal Integrity Engineer in Valley Green, PA. You will design, characterize and qualify high-speed RF cable assemblies for data center interconnects, using VNA, TDR and BERT, and you will run simulations (HFSS/ADS) to ensure performance targets at 224G/448G PAM4.

You will work with mechanical and manufacturing teams to optimize cable construction, termination geometry, and materials, while developing automation scripts and data