Astera Labs

Optical Test Engineer, Principal

$205K–$255KFull-time · San Jose, CA
✓ Verified live on the employer's own system · added 46 days ago
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Senior · 12+ yrs exp

Requirements

Education: Doctorate or related field

Experience: 12+ years

Skills & tools

Team LeadershipRoot Cause AnalysisElectricalTest EquipmentPythonC SharpPcb DesignIc Design

Benefits — mentioned in this posting

Bonus / commission
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Full job description

We are seeking a world-class Senior Staff to Principal Optical Test Engineer to lead the development and execution of advanced test strategies for Co-Packaged Optics (CPO) solutions.

This senior role drives optical and electro-optical testing for next-generation high-bandwidth CPO modules and optical engines integrated with ASICs for AI, hyperscale data centers, and high-performance computing.

You will architect test methodologies, develop hardware/software platforms, and enable high-volume manufacturing while ensuring world-class performance, reliability, and yield. This is a high-impact technical leadership position at the forefront of silicon photonics and co-packaged optics innovation.

  • Lead the definition, development, and qualification of comprehensive test solutions for CPO optical engines, including wafer-level, die-level, package-level, and system-level testing.
  • Design and implement optical test hardware and automation systems (e.g., active alignment, fiber array attachment, high-speed optical I/O characterization).
  • Develop test programs and methodologies for key photonic parameters: insertion loss, eye diagrams, BER, PAM4 signaling, optical power, wavelength, thermal performance, and reliability stress testing.
  • Collaborate closely with Silicon Photonics design, package engineering, product engineering, and manufacturing teams to optimize design-for-test (DFT) and manufacturability.
  • Drive yield improvement, failure analysis, and root-cause investigations for complex electro-optical failures in CPO assemblies.
  • Establish correlations between bench/lab validation, ATE production test, and system-level performance.
  • Mentor junior engineers and provide technical direction on test architecture, equipment selection, and best practices for high-channel-count, high-speed optics.
  • Support qualification, reliability testing (e.g., HTOL, temperature cycling), and customer audits for CPO products.
  • Evaluate and integrate new test technologies, instrumentation, and automation frameworks to scale CPO production efficiently.
  • Contribute to roadmaps for next-generation CPO test capabilities (e.g., higher data rates, multi-wavelength, advanced packaging).
  • Education: MS or PhD in Electrical Engineering, Optical Engineering, Physics, or a related field.
  • 8+ years (Senior Staff) to 12+ years (Principal) of relevant experience in optical/photonic test engineering.
  • Strong background in Co-Packaged Optics (CPO) , silicon photonics, or high-speed optical transceivers (800G/1.6T+).
  • Proven track record developing optical test solutions for wafer, package, or module-level testing in high-volume environments.
  • Deep expertise in optical test instrumentation (e.g., optical spectrum analyzers, BER testers, oscilloscopes, tunable lasers, power meters, fiber alignment systems).
  • Experience with automated test equipment (ATE), Python/LabVIEW/C# test development, and statistical process control (SPC).
  • Knowledge of PAM4 signaling, signal integrity, mixed-signal testing, and reliability standards for data center optics.
  • Hands-on experience with CPO-specific challenges: active alignment, thermal management, laser integration, fiber attach, and co-packaged ASIC testing.
  • Familiarity with industry standards (e.g., IEEE 802.3, OIF, CMIS) and working with hyperscalers or module vendors.
  • Experience in semiconductor foundry/OSAT ecosystems and transitioning from NPI to high-volume production.
  • Track record of technical leadership, patents, or publications in photonics test.
  • Strong problem-solving, communication, and cross-functional collaboration skills.

Salary range is $205,000 to $255,000 depending on experience, level, and business need. This role may be eligible for discretionary bonus, incentives and benefits.

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This posting was published by Astera Labs on their own careers system and is shown here with a direct link to apply there. Employers: for corrections or removal, contact jobs@veritahire.com.