Optical Systems Engineer

Credo Semiconductor, Inc.; San Jose (CA); On-site; USD 180,000 - 210,000; Full time

Benefits offered by this job

Discretionary bonus

Equity

Medical benefits

Job summary

Credo Semiconductor, Inc. is seeking an Optical Systems Engineer to validate and optimize our next-generation optical modules and components, supporting data rates from 50Gbps to 448Gbps.

You will design module schematics, develop test plans, and analyze performance data to define chip and module configurations. This role contributes to Credo’s leadership in high-speed interconnects for AI, cloud, and data-center applications.

Qualifications

• B.S. in Electrical Engineering with 7+ years of relevant experience, or M.S. in Electrical Engineering with 5+ years of relevant experience.
• Strong analog, digital, RF, and optical circuit analysis skills.
• Solid understanding of circuit theory, linear systems, feedback, IC fundamentals, high-speed RF concepts, and link-budget analysis.
• Hands-on experience with high-speed optical and electrical test equipment (e.g., VNAs, DCAs, spectrum analyzers, power meters, OSAs).
• Experience with high-speed optical/electrical testing and basic test automation.
• Programming skills in Python, C/C++, MATLAB, or LabVIEW for data collection, analysis, and visualization.
• Strong communication and presentation skills for cross-functional collaboration.

Responsibilities

• Perform electrical and optical measurements on optical evaluation boards and modules.
• Design and analyze optical and high-speed electrical hardware, including schematics for optical test stations.
• Evaluate optical components such as lasers, modulators, and receivers for performance, reliability, and suitability in reference designs and test systems.
• Develop and execute test plans for engineering validation and design verification.
• Conduct failure analysis and collaborate with contract manufacturers or field applications teams as needed.
• Work closely with cross-functional partners across signal integrity, thermal, mechanical, firmware, electrical engineering, technology, marketing, and operations.

Skills

Analog circuit analysis

Digital circuit analysis

RF concepts

Optical circuit analysis

High-speed testing

Python

C/C++

MATLAB

LabVIEW

Communication skills

Education

Bachelor's in Electrical Engineering

Master's in Electrical Engineering

Tools

VNAs

DCAs

Spectrum analyzers

Power meters

OSAs

Keysight ADS

Ansys HFSS

AutoCAD

PCB layout tools

Job description

Team Credo is seeking an Optical Systems Engineer to help validate and optimize our next‑generation optical modules and components, supporting data rates from 50Gbps up to 448Gbps and beyond. In this role, you’ll use your expertise in optical systems and components to design module schematics, develop test plans, and analyze performance data to define final chip and module configurations.
You’ll play a key role in ensuring our optical solutions meet the performance and reliability needs of AI, cloud, and data‑center applications. As a core member, your work will directly contribute to Credo’s leadership in high‑speed optical interconnect technologies.

Base salary range is $180,000 – $210,000 a year. The base salary offer will depend on factors such as education, experience, training, skills, qualifications, and location. This position is also eligible for a discretionary bonus, equity and a full range of medical and other benefits.

Why Credo

• Purpose: We invest in what matters. From meaningful-future shaping projects to competitive compensation, we empower you to grow your career while making a lasting impact.
• People: Connection starts within. We collaborate, celebrate wins, and create an environment where everyone can do their best work.
• Possibilities: Our belief shapes what’s next. Our technology powers the most reliable and energy-efficient connections around the world – and our team powers new products and markets that come next.

Qualifications

Basic Qualifications

• B.S. in Electrical Engineering with 7+ years of relevant experience, or M.S. in Electrical Engineering with 5+ years of relevant experience.
• Strong analog, digital, RF, and optical circuit analysis skills.
• Solid understanding of circuit theory, linear systems, feedback, IC fundamentals, high‑speed RF concepts, and link‑budget analysis.
• Hands‑on experience with high‑speed optical and electrical test equipment (e.g., VNAs, DCAs, spectrum analyzers, power meters, OSAs).
• Experience with high‑speed optical/electrical testing and basic test automation.
• Programming skills in Python, C/C++, MATLAB, or LabVIEW for data collection, analysis, and visualization.
• Strong communication and presentation skills for cross‑functional collaboration.

Preferred Qualifications

• Experience with optical alignment and fiber‑coupling techniques.
• Familiarity with optical test instruments such as variable attenuators, multi‑axis positioners, and advanced optical diagnostics.
• Understanding of tolerances, yield, reliability, and failure‑analysis methodologies.
• Experience with signal‑integrity analysis for high‑speed PCBs (e.g., Keysight ADS).
• Experience with electromagnetic simulation tools for optoelectronic assemblies (e.g., Ansys HFSS).
• Familiarity with mechanical CAD tools such as AutoCAD or similar.
• Experience designing or reviewing high‑speed PCB layouts.

Responsibilities

• Perform electrical and optical measurements on optical evaluation boards and modules.
• Design and analyze optical and high‑speed electrical hardware, including schematics for optical test stations.
• Evaluate optical components such as lasers, modulators, and receivers for performance, reliability, and suitability in reference designs and test systems.
• Develop and execute test plans for engineering validation and design verification.
• Conduct failure analysis and collaborate with contract manufacturers or field applications teams as needed.
• Work closely with cross‑functional partners across signal integrity, thermal, mechanical, firmware, electrical engineering, technology, marketing, and operations.

About Credo

Credo’s mission is to transform connectivity at scale through fast, reliable, and energy-efficient system solutions. Our high-speed copper and optical interconnect products deliver industry-leading power and performance at up to 1.6T to meet the ever‑expanding data infrastructure demands of AI.
Our product portfolio includes ZeroFlap (ZF) Active Electrical Cables (AECs) and ZF optical transceivers, OmniConnect memory solutions, and a suite of retimers and DSPs for optical and copper Ethernet and PCIe, all leveraging the PILOT diagnostic and analytics software platform. Credo innovations enable our customers to connect the systems that connect the world.

Credo is committed to creating an inclusive environment for all employees and welcome applicants from diverse backgrounds without regard to race, color, religion, gender, sex, gender identity, sexual orientation, pregnancy, marital status, national origin, ethnicity, genetic information, age, disability, veteran status, or any other legally protected basis. If you have a disability or special need that requires accommodation to navigate our website or complete the application process, email [e-mail].