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Senior Staff Engineer, Signal Integrity

Date: Mar 6, 2023

Location: San Jose, CA, US

Company: Celestica International Inc.

Req ID: 106690 
Region: Americas 
Country: United States 
State/Province: California 
City:  San Jose 

About us:

If you’re reading this, chances are that you’re getting this information over at least one piece of hardware that we designed, developed, manufactured or service. Celestica is the brand behind the brands you love in tech and we design, develop, and manufacture leading-edge Hardware Platform Solutions in Networking, Storage, and Server solutions from general purpose to customized Cloud, AI, machine learning, Edge and 5G deployments. Across Data Centers and Enterprise deployments, we are partnered with an impressive roster of some of the world’s biggest tech companies. We work with 9 of the top 10 global internet service providers, 4 of the top 5 global storage providers, 3 of the top 5 networking OEMs, and the top 3 non-X86 server providers engineering solutions for this generation and the next.


Our customers experience firsthand the power of our people - people who share a passion for innovation, technology, collaboration, performance and quality. People who, together, make a formidable team that is not only transforming our company, but transforming the technology landscape of the future. Celestica might not be a household name, but as you evaluate the companies, industries, cultures and  teams that you are considering for your next career move, we hope that one thing will become very clear: Celestica is no ordinary company. We are change makers. Innovators. And we have an unrelenting drive to find the way for our customers.


Let’s engineer the future together.


The Signal Integrity Engineer will play a critical role in the planning of digital PCB designs, simulation, lab verification, and troubleshooting signal integrity issues on completed designs. They will also be expected to help with design review of critical PCBs for signal integrity concerns. Good communications skills and ability to work with physically dispersed teams is a strong requirement.

Skills Experience Requirements: 

  • 8+ years experience with High Speed Signal Delivery Design and Evaluation. This includes both signal integrity within a PCB and off the board (board to board connectors, ribbon cables, coaxial cable, etc.).
  • PCB design fundamentals (single ended and differential signals)
  • Signal loss • Impedance control • Crosstalk (near end and far end)
  • Familiar with single-ended and differential signaling up to 50Gbps
  • Familiar working with component models (touchstone files) and cascading models to generate complete system models for simulation 
  • Simulation of digital interfaces (examples would be FPGA to DRAM, SERDES interfaces)
  • Simulation of analog paths through a combination of PCB, connector, and cable (examples would be signal driver to DUT)
  • Very familiar with 2D and 3D simulation tools (examples include ADS, ANSYS HFSS, Sigrity)
  • Electrical length calculations for signal matching 
  • Familiar with looking at signals in both frequency (S-parameter) and time domain and understand how to interpret results when it comes to suitability for a particular application. 
  • Familiar with generating and interpreting data-eye diagrams up to 50Gbps: NRZ and PAM4
  • Familiar with Allegro or similar layout tool and schematics
  • PCB Stack up design and familiar with fabrication limitations and cost trade-offs
  • High Frequency board material experience
  • Significant experience with measuring signal performance in the lab: TDR measurements and VNA measurements
  • Able to develop test fixtures for making measurements (both custom design test boards as well as making “ad hoc” probing solutions to troubleshoot existing PCBs) 
  • Familiar with the cost vs performance tradeoffs when designing signal paths as cost is key design constraint
  • Experience with flex circuit design for high speed signaling


Typical Education:    

  • Bachelor’s degree in Electrical Engineering with emphasis in wireless communications
  • Educational Requirements may vary by Geography


Occasional overnight travel is required


Salary Range: $142,000 - 222,000

The salary range described in this posting is an estimate by the Company, and may change based on several factors, including by not limited to a change in the duties covered by the job posting, or the credentials, experience or geographic jurisdiction of the successful candidate.


This job description is not intended to be an exhaustive list of all duties and responsibilities of the position. Employees are held accountable for all duties of the job.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Celestica’s policy on equal employment opportunity prohibits discrimination based on race, color, creed, religion, national origin, gender, sexual orientation, gender identity, age, marital status, veteran or disability status, or other characteristics protected by law. 

This policy applies to hiring, promotion, discharge, pay, fringe benefits, job training, classification, referral and other aspects of employment and also states that retaliation against a person who files a charge of discrimination, participates in a discrimination proceeding, or otherwise opposes an unlawful employment practice will not be tolerated. All information will be kept confidential according to EEO guidelines.



Celestica (NYSE, TSX: CLS) enables the world’s best brands. Through our recognized customer-centric approach, we partner with leading companies in Aerospace and Defense, Communications, Enterprise, HealthTech, Industrial, Capital Equipment and Energy to deliver solutions for their most complex challenges. As a leader in design, manufacturing, hardware platform and supply chain solutions, Celestica brings global expertise and insight at every stage of product development – from drawing board to full-scale production and after-market services for products from advanced medical devices, to highly engineered aviation systems, to next-generation hardware platform solutions for the Cloud.

Headquartered in Toronto, with talented teams spanning 40+ locations in 13 countries across the Americas, Europe and Asia, we imagine, develop and deliver a better future with our customers.


Celestica would like to thank all applicants, however, only qualified applicants will be contacted.

Celestica does not accept unsolicited resumes from recruitment agencies or fee based recruitment services.

Nearest Major Market: San Jose
Nearest Secondary Market: Palo Alto

Job Segment: Supply Chain, Aerospace Engineering, Electrical, Electrical Engineering, Manufacturing Engineer, Operations, Engineering