Principal Application Engineer

• 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.

Job requirements

• 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, QSFP‑DD, OSFP).
• Hands‑on 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 data‑based root‑cause 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.
• MS or PhD. in Electrical Engineering, Communication, Optics or Physics, plus 10+ years of relevant work experience.
• Experience with large‑scale data analysis and reporting for customer deliverables.
• Experience building customer‑representative testbeds, including host systems, traffic generators, and automation frameworks.
• Strong system‑level perspective — ability to correlate module behavior with host design choices.
• Experience supporting top‑tier hyperscale and datacenter customers.
• Understanding of customers’ optical module qualification and deployment procedures.

Job responsibilities

• Support customer‑site troubleshooting, including electrical, optical, firmware, and interoperability‑related issues.
• Learn and analyze customer use cases, including system hardware architecture, firmware behavior, operating conditions, and software drivers where Credo modules are deployed.
• Build automation infrastructure and test environments that accurately represent customer system environments for validation and problem reproduction.
• Develop test scripts and automated evaluation flows to measure module performance under customer‑equivalent conditions.
• Collaborate closely with internal optical, mechanical, firmware, hardware, and validation teams to root‑cause issues and drive resolution.
• Collect, consolidate, and interpret engineering data across multiple domains (optical parameters, host signals, firmware logs, system telemetry, etc.), and identify areas for further improvement.
• Prepare customer‑facing technical reports, including performance summaries, failure analyses, and recommended actions.
• Lead on‑site technical engagements with customers, driving alignment on test plans, performance expectations, and deployment conditions.
• Provide insights back into the product development teams to improve module robustness, firmware behavior, and system compatibility.

Job benefits