Application Engineer

Posted 7 Hours Ago
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San Jose, CA, USA
In-Office
80K-130K Annually
Junior
Hardware • Information Technology • Semiconductor
The Role
Develop and test high-speed SerDes technologies and mixed-signal systems. Responsibilities include creating Python automation, debugging products onsite, developing test plans, characterizing SerDes performance, implementing training algorithms across copper and optical channels, collaborating with design teams, and creating customer-facing technical documentation and reference designs.
Summary Generated by Built In
Team Credo is looking for an Application Engineer to join our mission to transform connectivity at scale. This role will play a critical role in advancing semiconductor technologies through innovative design, development, and testing. This position offers opportunities for cross-functional collaboration in a high-tech environment, ideal for professionals passionate about microelectronics and integrated systems.
 
Base salary range is $80,000 - $130,000 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
  • BS with +2 years of experience or MS in EE/CE.
  • Background in mixed-signal and DSP-based systems.
  • Understanding of high-speed SerDes architectures and CDR/PLL.
  • Basic knowledge/understanding of analog and digital circuits.
  • Skills in Python and C programming to develop Serdes automation for link-up, training and data analysis.
 
Preferred Qualifications
  • Experience with IEEE 802.3 compliance testing and SerDes performance characterization, including measurement of key metrics such as JTOL, BER, jitter, and PAM4 signal integrity.
  • Experience with ≥56G SerDes (112G/224G preferred).
  • Knowledge of equalization: FFE, CTLE, DFE
  • Knowledge of adaptive signal processing, coding, and FEC algorithms a strong plus.
  • Experience with high-speed test equipment (Scopes, BERTs, Spectrum Analyzers).
  • Good debug and data analysis skill is requested.

Responsibilities
  • Regular attending technical reviews with design team.
  • Participation in new product testing and developing Python script.
  • Onsite debugging of issues.
  • Willingness to go above and beyond to resolve high priority issues.
  • Collaborate to develop test plans with multiple teams and disciplines.
  • Create customer-facing documentation like handbooks and Application Notes with reference designs.
  • Define, test and implement complex SERDES training algorithms for a multi-rack system involving a wide variety of channels on boards, in systems, over copper backplanes, and optical fibers.

Benefits
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 [email protected].

Skills Required

  • Bachelor’s degree in Electrical Engineering or Computer Engineering with 2+ years of experience, or a Master’s degree in Electrical Engineering or Computer Engineering
  • Background in mixed-signal and DSP-based systems
  • Understanding of high-speed SerDes architectures and CDR/PLL
  • Basic knowledge of analog and digital circuits
  • Python and C programming skills for SerDes automation, link-up, training, and data analysis
  • Experience with IEEE 802.3 compliance testing and SerDes performance characterization
  • Experience measuring JTOL, BER, jitter, and PAM4 signal integrity
  • Experience with 56G or faster SerDes; 112G or 224G preferred
  • Knowledge of FFE, CTLE, and DFE equalization
  • Knowledge of adaptive signal processing, coding, and FEC algorithms
  • Experience with high-speed test equipment, including oscilloscopes, BERTs, and spectrum analyzers
  • Strong debugging and data analysis skills
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The Company
548 Employees
Year Founded: 2008

What We Do

Credo is a semiconductor and connectivity technology company developing fast, reliable, energy-efficient solutions for AI-driven applications, cloud computing, and hyperscale networks. Its portfolio is built on SerDes intellectual property, advanced integrated-circuit design, and system-level engineering, supporting data rates up to 1.6T. The company pioneered Active Electrical Cables and provides high-speed interconnect products and IP that reduce bandwidth bottlenecks across modern data-center infrastructure.

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