Sr Principal Signal Integrity Engineer

Formfactor Inc; Beaverton (OR); On-site; USD 115,800 - 151,935; Full time

Benefits offered by this job

Full benefits package

401(k) with company match

Employee stock purchase plan

Paid time off

Quarterly profit-sharing bonuses

Job summary

FormFactor Inc is seeking a Sr Principal Signal Integrity Engineer to join their team in Beaverton, Oregon. In this role, you will be responsible for conducting signal and power integrity analysis for high-speed interconnects, collaborating with engineers across multiple sites.

The ideal candidate has over 8 years of experience in SI/PI analysis and possesses a strong understanding of transmission line theory. Join us to contribute to next-generation architecture and roadmap development!

Qualifications

• 8+ years of relevant experience in SI/PI analysis and design.
• Strong understanding of transmission line theory and power integrity principles.
• Experience with measurement tools (VNA, TDR/TDT).

Responsibilities

• Perform signal and power integrity analysis for high‐speed interconnects.
• Develop and validate electrical models for transmission lines and connectors.
• Collaborate globally with engineering teams and customers.

Skills

Allegro PCB Designer

ANSYS HFSS

Cadence Tools

High Speed Interfaces

MATLAB

Power Distribution Design

Power Integrity

PSpice Circuit Simulation

Python (Programming Language)

SERDES

Signal Integrity

Signal Integrity Analysis

Transmission Line Design

Education

BS/MS in Electrical Engineering

Tools

HFSS

ADS

SIwave

PowerSI

PowerDC

SPICE

Allegro

MATLAB

Job description

## Sr Principal Signal Integrity EngineerApplylocations: Beaverton, ORtime type: Full timeposted on: Posted Todayjob requisition id: JR100580**Forming Our Future together**FormFactor, Inc. (NASDAQ: FORM), is a leading provider of essential test and measurement technologies along the full semiconductor product life cycle — from characterization, modeling, reliability, and design de-bug, to qualification and production test. Semiconductor companies rely upon FormFactor’s products and services to accelerate profitability by optimizing device performance and advancing yield knowledge. The company serves customers through its network of facilities in Asia, Europe, and North America.Rooted in our core values — Focus on the Customer, Ownership & Accountability, Respectfully & Effectively Communicate, and Motivate & Develop People — we foster an environment where diverse perspectives are not only welcomed but celebrated. Everyone can make an impact here. Whether it's improving products, supporting customers, or positively influencing peers and the community, the contributions of our people matter.**Shift:**The regular hours for this position are day shift.**Job Description:**In the role of **Sr** **Principal Signal Integrity Engineer,** you will be responsible for completing tasks on time and solving short- and long-term problems. You will be part of a technical group, responsible for improving SI/PI performance, completing production design analysis, and measurement and characterizing. This role will be working with customers and engineers across multiple sites, California US, Europe and Asia Regions.**Key Responsibilities:****Design & Analysis*** Perform **signal and power integrity analysis** for high‐speed interconnects (PCB, package, MLO, probe card).* Develop and validate electrical models for Transmission lines, vias, connectors, and PDN (Power Distribution Network) structure.* Define **stack‐ups, impedance targets, and routing constraints**.* Evaluate and optimize Reflections, insertion/return loss, and Crosstalk and jitter performance.**Simulation & Modeling*** Use EM and circuit tools (e.g., HFSS, ADS, SIwave, PowerSI) for Frequency‐domain and time‐domain analysis.* Build system/channel models (e.g., IBIS‐AMI, eye diagrams).* Run **what‐if studies** to optimize performance and reduce design risk.**Testing & Validation*** Define and execute SI validation plans using VNA, TDR, TDT and high‐speed measurement setups.* Define test fixtures and correlation structures.* Drive **simulation-to-measurement correlation** and root cause analysis.* Drive design improvements based on measured data.**Design Support & Collaboration*** Provide **design guidelines, constraints, and best practices** to layout teams and electrical design engineers.* Collaborate globally with engineering teams and customers.* Support new product development programs (e.g., probe cards, load boards).**Continuous Improvement & Innovation*** Improve modeling methodologies and design workflows.* Reduce simulation cycle time and improve design quality.* Stay current with High-speed interfaces (PCIe, HBM, SerDes), and Emerging packaging and interconnect technologies.* Contribute to next-generation architecture and roadmap development.**Preferred Qualifications:*** BS/MS in Electrical Engineering (or related field).* 8+ years of relevant experience in SI/PI analysis and design.* Strong understanding of: Transmission line theory, Power integrity principles, Crosstalk and signal degradation mechanis.* Experience with tools such as: HFSS, ADS, SIwave, PowerSI, PowerDC, SPICE, Allegro, MATLAB.* Hands-on experience with measurement tools (VNA, TDR/TDT).* Experience with high-speed interfaces (PAM4, SerDes, PCIe, HBM).* Scripting/automation (Python, MATLAB).* Experience in advanced packaging, probe cards, or fine-pitch interconnects.**Skills:**Allegro PCB Designer, ANSYS HFSS, Cadence Tools, High Speed Interfaces, MATLAB, Power Distribution Design, Power Integrity, PSpice Circuit Simulation, Python (Programming Language), SERDES, Signal Integrity, Signal Integrity Analysis, Transmission Line Design**Education & Experience:**Minimum of 8 years of related experience with a Bachelor’s degree; or 6 years and a Master’s degree; or a PhD with 3 years experience; or equivalent experience | Required**Pay Range:**$115,800.00 - $151,935.00**Pay Range Explained:**This role in Beaverton, Oregon pays between $115,800.00 and $151,935.00 per year, depending on your experience, skills, and background. Pay may vary in other locations. We offer a full benefits package, including medical, dental, vision, life insurance, disability coverage, a 401(k) with company match, employee stock purchase plan (ESPP), and paid time off. You’ll also be eligible for quarterly profit-sharing bonuses and flexible spending or savings accounts.**Equal Employment Opportunity Statement**FormFactor is an equal opportunity employer. FormFactor complies with all national, state, and local laws that seek to promote equal opportunities for any applicant or employee without regard to age, race, color, gender, gender identity/expression, national origin, sexual orientation, religion, disability, marital status, pregnancy or related condition, military service, or any other legally protected characteristics. These protections apply to all aspects of employment, including but not limited to, recruitment, hiring, training, promotions, and compensation.