Signal Integrity Engineer I

Upscale AI Inc

San Francisco, CA

JOB DETAILS
SALARY
$117,000–$129,000 Per Year
SKILLS
Analysis Skills, Architectural Design, Artificial Intelligence (AI), Communication Skills, Computer Engineering, Computer Systems, Debugging Skills, Electrical Engineering, Funding, Graphic Design, Hardware Design, Laboratory Equipment, Network Design, Network Operations Center, Network Performance/Analysis, Printed Circuit Board (PCB), Printed Circuit Board Design, Product Testing, Quality Metrics, Root Cause Analysis, Signal Integrity, Simulation, System Integration (SI), Team Player
LOCATION
San Francisco, CA
POSTED
5 days ago

Signal Integrity Engineer I

US - Headquarters

Hardware Engineering /

Reg - Full-Time /

On-site

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Why join Upscale AI

Upscale AI is building the high-performance infrastructure powering the next generation of artificial intelligence. Backed by over $300M in funding and rapid global adoption, we are scaling systems designed for the world's most demanding AI workloads.

We focus on first-principles engineering across silicon, systems, and networking-where performance, scale, and execution are critical. Our team is talent-dense and high-performing. We value ownership, technical rigor, and speed, and we offer the opportunity to work on foundational problems with immediate, real-world impact.

If you're looking to do high-impact work, move fast, and help define the infrastructure behind the future of AI-Upscale AI is where you can produce meaningful work at the frontier-and operate at a high standard.

Position Summary

We are looking for a motivated Junior Signal Integrity Engineer to join our Hardware Engineering team. The candidate will support Signal Integrity (SI) and Power Integrity (PI) analysis for high-speed PCB designs used in networking, AI, data center, and compute platforms. This role offers an excellent opportunity to work alongside experienced SI engineers while developing expertise in high-speed system design, simulation, measurement, and debugging.

Responsibilities

Support SI/PI analysis for high-speed PCB designs from architecture through product validation.

Assist with channel modeling, simulation, and optimization for high-speed interfaces.

Perform signal quality measurements using laboratory equipment.

Support PCB stackup reviews, routing reviews, and design guideline development.

Analyze transmission lines, vias, connectors, cables, and package-to-board interfaces.

Participate in correlation between simulation and laboratory measurements.

Work closely with PCB designers, hardware engineers, package engineers, and silicon teams.

Document simulation results, measurements, and design recommendations.

Assist in root-cause analysis and debugging of signal integrity issues.

Preferred Qualifications

BS or MS in Electrical Engineering or related field.

0-3 years of experience in Signal Integrity, PCB Design, Hardware Design, or related areas.

Basic understanding of:

  • High-speed digital design
  • Transmission line theory
  • PCB stackups and routing
  • S-parameters and eye diagrams
  • SI and PI fundamentals

Exposure to one or more simulation tools such as:

Cadence Clarity

Cadence Sigrity

Keysight ADS

Ansys HFSS

Exposure to laboratory instruments such as:

Vector Network Analyzer (VNA)

TDR/TDT

High-speed Oscilloscopes

Strong analytical and problem-solving skills.

Excellent communication and teamwork abilities.

Nice to Have

Experience with 56G/112G/224G SerDes systems.

Knowledge of PCIe, Ethernet, UCIe, DDR interfaces

$117,000 - $129,000 a year

Where you fall within that range depends on your experience, skills, and impact-we benchmark against internal levels to keep things fair and consistent.

Equal Opportunity

Upscale AI is building a team that reflects a wide range of perspectives, backgrounds, and experiences. We're proud to be an Equal Opportunity Employer and consider all qualified applicants regardless of race, color, religion, national origin, sex, sexual orientation, gender identity, disability, or veteran status.

Accessibility & Accommodations

We're committed to making our hiring process accessible to everyone. If you need accommodations at any stage, just reach out to us at [email protected]-we're happy to help. Note: This inbox is only for accommodation requests.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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About the Company

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Upscale AI Inc