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Principal Application Engineer

Credo

Job Location:

San Jose, CA - USA

Yearly Salary: USD 180000 - 250000

Posted: 7 September 2026 (12 hours ago)

Application Deadline: 5 December 2026

Vacancies: 1 Vacancy

Job Summary

Description

We are seeking a Principal Application Engineer to drive customerfacing technical engagement for Credos ZeroFlap optical module products. This role acts as the technical bridge between Credo and key customers enabling successful deployment troubleshooting and performance optimization of Credo optical modules in complex system environments. The engineers deeply understand customer hardware firmware and software use cases build automation and evaluation infrastructure modeled after realworld customer systems and lead crossfunctional collaboration to deliver highquality solutions that ensure seamless customer adoption of ZeroFlap optical module products.

Base salary range is $180000 - $250000 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 whats 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.

Requirements

Basic Qualifications

B.S. in Electrical Engineering Communication Optics or Physics plus 12 years of relevant work experience
Strong understanding of optical pluggable modules and standards (IEEE CMIS QSFPDD OSFP).
Handson experience with optical electrical test equipment (e.g. DCA BERT scopes host system) and switches and NICs.
Deep knowledge of optical modules and how they interact with the customers hardware and software environments.
Ability to diagnose issues across firmware optical mechanical and system domains.
Test automation using scripting languages such as Python.
Proven ability to drive databased rootcause investigations and to design experiments upfront that produce clear defensible engineering conclusions and actionable next steps.
Strong communication skills with the ability to interface directly with customers and internal engineering teams.

Preferred Qualifications

MS or Electrical Engineering Communication Optics or Physics plus 10 years of relevant work experience.
Experience with largescale data analysis and reporting for customer deliverables.
Experience building customerrepresentative testbeds including host systems traffic generators and automation frameworks.
Strong systemlevel perspective ability to correlate module behavior with host design choices.
Experience supporting toptier hyperscale and datacenter customers.
Understanding of customers optical module qualification and deployment procedures.

Required Experience:

Staff IC

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