Senior System Application Engineer

Job DescriptionJob DescriptionSalary: $130,000 to $160,000

Credo is engineering the future of high-speed connectivity for the AI-driven world.With a deeply rooted legacy of innovation and a passion for solving the most complex networking challenges, we deliver industry-leading solutions that power the next of cloud, AI, and hyperscale data centers.

Credo is pioneering a systems-level approach to connectivity, integrating hardware, software, and architecture to deliver holistic solutions. This strategy not only differentiates us in the market but also creates significant value for our customers by accelerating deployment, improving performance, and reducing complexity across their infrastructure.

At Credo, youll be part of a team of world-class technologists and engineers that thrive on pushing the limits of whats possible for some of the worlds most important companies. Our portfolio includes cutting edge solutions including our software,optical DSPs, PCIe/CXL products, SerDes IP, and advanced Active Electrical Cables(AECs) all designed for maximum performance, energy efficiency, and scalability.

We foster a culture oftechnical excellence, collaboration, and continuous learning, where your ideas can shape the future of connectivity. From silicon architects to systems engineers, every role at Credo contributes to solving real-world problems at scale.

Join us and help us architect the next of disruptive networking technologies because at Credo, We Connect.

About the role

Credo is seeking Senior System Application Engineer to join our dynamic team in San Jose. In this role, you will work in a fast-paced, cross-functional environment focused on validating next- high-speed modules, including 400G, 800G, and 1.6T solutions.

You will be responsible for electrical validation, automation development, interoperability testing, and system-level debug, collaborating closely with hardware, firmware, and manufacturing teams to ensure robust performance across diverse operating conditions.

Key Responsibilities

• Characterize TIA/EML/SiPho optical components, including TIA gain and bandwidth, AC response, and tuning bias current and thermal settings for laser and modulator optimization.
• Develop automation scripts for test execution, data collection, and analysis using Python or similar programming .
• Perform environmental and reliability stress testing, such as thermal cycling, voltage margining, and soak tests.
• Analyze test results, identify root causes, and drive resolution in collaboration with cross-functional teams.
• Support platform bring-up, firmware validation, and vendor qualification for high-speed modules.
• Contribute to DSP bring-up and tuning, including writing low-level code for signal processing and link optimization.
• Apply knowledge of laser components, modulation schemes, and optical communication principles to system validation.

Qualifications

• Bachelors or higher degree in Electrical Engineering, Communications Engineering, Physics, or related field.
• 5+ years of experience in high-speed systems or related fields.
• Hands-on experience with high-speed transceivers (e.g., QSFP-DD, OSFP, AEC) and related lab instruments (oscilloscope, BERT, VNA).
• Strong problem-solving skills and ability to work independently or collaboratively.
• Excellent communication skills for cross-functional collaboration.
• Passion for high-speed signaling, system-level validation, and continuous learning.
• Solid understanding of SerDes architecture, signal integrity, and high-speed link behavior.
• Familiarity with DSP architecture and ability to write bring-up and tuning code.

The base salary range for this position is $130,000 to $160,000 per year. The base salary ultimately offered is determined through a review of 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.

Credo is an Equal Opportunity Employer. We are committed to creating an inclusive environment for all employees and welcome applicants from diverse backgrounds without regard to , , , gender, sex, , origin, genetic information, age, , veteran status, or any other legally protected basis.

If you have a or special need that requires accommodation to navigate our website or complete the application process, email people@credosemi.com.