$117,000 - $200,000 USD yearly
Focus on broadband communications products operating at data rates up to and beyond 400 Gbps.
About the role
MACOM's High-Performance Analog Business Unit is searching for a Senior Principal Engineer focused on signal integrity strategies and methodologies. This work spans front-end definition to back-end validation of broadband communications products at data rates up to and beyond 400 Gbps.
What you'll do
- Drive feasibility analyses at the onset of product definition, evaluating and specifying electrical characteristics and performance to determine compliance with regulating standards.
- Take ownership of products from definition through hand-off to product engineering for production launch, identifying performance limits and debugging devices and systems.
- Perform detailed modeling and electrical analysis of silicon-to-silicon physical interconnects, including chip-scale to large-scale packaging, passive connectors, and multi-conductor transmission lines.
- Define and execute experiments to validate modeling methodologies and establish correlation to empirical data.
- Design, develop, and document interconnect solutions for internal hardware needs and customer hardware reference designs.
- Create, verify, document, or provide guidance for IBIS-AMI models enabling customers to assess channel performance.
What you'll need
- An MSEE with 8+ years of pertinent experience, a PhD with 6+ years of direct experience, or a BSEE with no less than 15 years of direct industry experience.
- Expert-level knowledge and experience with 3D electro-magnetic field solvers such as Ansys HFSS, with the ability to create models of usable bandwidth to 150 GHz.
- In-depth knowledge of circuit design and simulation tools such as Cadence IC Craftsman and Agilent ADS (or Ansys Designer).
- Strong understanding of circuit and transmission line theory, combined with working knowledge of concurrent time and frequency-domain methods of analysis and characterization.
- Programming experience in Matlab, Python, and/or C++.
- Extensive experience collecting measurement data for high speed serial links using equipment such as TDR, VNA, BERT, DCA/oscilloscope, and spectrum analyzers.
Nice to have
- Programming experience with languages such as TCL, Linux shell, or Perl.
- Working experience in Mathworks SimuLink.
Skills: signal integrity, HFSS, IBIS-AMI, 400 Gbps, TDR, VNA
More semiconductor jobs: MACOM jobs · Signal integrity jobs · California jobs
First seen in our index 0 days ago, well below the 58-day median for High-Speed IO/SerDes Design roles.
High-Speed IO/SerDes Design · Serdes Highspeed
|
Open roles in category
262
|
Median days since first seen
58 d
|
Category median salary (all employers)
$206k
|
See the full market breakdown ▾Category comparison, skills in demand, and who else is hiring
| Metric | MACOM | All employers we track in this specialty (262 roles · 53 employers) |
|---|---|---|
| Open roles in this specialty | 5 | 262 |
| Open roles in the wider Analog & Mixed-Signal family | 41 | 1563 · 118 employers |
| Median days since first seen | 16 d | 58 d (+42 d vs this employer) |
| Median salary (USD postings) | n/a | $206k |
Skills observed across this category: signal integrity, HFSS, IBIS-AMI, 400 Gbps, TDR, VNA
Who's hiring in this category
- Synopsys · 41 open roles · median 37 d
- Cadence Design Systems · 22 open roles · median 150 d
- AMD · 21 open roles · median 46 d
- Qualcomm · 20 open roles · median 87 d
- NVIDIA · 18 open roles · median 219 d
- Apple · 10 open roles · median 13 d
How we counted: 262 open High-Speed IO/SerDes Design (Serdes Highspeed) roles from 53 employers tracked in the SemiconductorJobs index, counted 14 Nov 2026. Specialty figures count only roles carrying this exact specialty label, so an employer's related work in neighbouring specialties is not included there, and is counted in the wider Analog & Mixed-Signal family row. Days are counted from when our index first saw each posting, not from the employer's original posting date.