Astera Labs

Optical Validation Engineer, Tech Lead

Astera Labs$175K — $215K *
Telecommunications & Hardware
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Master's or PhD in Electrical Engineering, Optical Engineering, Photonics, Physics, or related field.
  • 8+ years of hands-on experience in silicon photonics or optical transceiver validation.
  • Strong experience in EIC/PIC co-design validation and multiple optical configurations.
  • Expertise in high-speed optical and electrical testing tools and equipment.
  • Proficiency in photonic test automation and data analysis tools.
  • Deep understanding of thermal effects in packaging and high-speed signal integrity challenges.
  • Excellent problem-solving and cross-functional collaboration skills.

Responsibilities

  • Lead validation and characterization of Optical Engines integrating EIC and PIC.
  • Develop test plans and methodologies for performance metrics.
  • Characterize modulators, photodetectors, lasers, and optical interfaces.
  • Validate performance of co-packaged optics including thermal management and signal integrity.
  • Design test setups for various testing levels including environmental qualification.
  • Collaborate with cross-functional teams to address design-for-test gaps.
  • Analyze validation data for failure analysis and corrective actions.

Benefits

  • Mentorship opportunities for junior engineers.
  • Contribution to intellectual property through patents and publications.
  • Dynamic and collaborative work environment with cross-functional teams.
Full Job Description
We are seeking an experienced Optical (EIC/PIC) Validation Engineer at the Tech Lead level to lead the validation, characterization, and qualification of advanced photonic integrated circuits (PICs) closely integrated with electronic integrated circuits (EICs) multiple optical configurations.

This high-impact role focuses on ensuring the performance, reliability, and manufacturability of next-generation optical engines for high-speed data center, AI/ML, and telecom applications. The ideal candidate has deep expertise in electro-optical testing, system-level validation, and multiple optical integration challenges.

Key Responsibilities
  • Lead end-to-end validation and characterization of Optical Engines integrating EIC and PIC in multiple Silicon Photonic architectures.
  • Develop comprehensive test plans, methodologies, and automation frameworks for optical, electrical, and electro-optical performance metrics (e.g., BER, eye diagrams, insertion loss, extinction ratio, receiver sensitivity, transmitter power).
  • Perform detailed characterization of key building blocks: modulators, photodetectors, lasers, waveguides, couplers, and high-speed EIC/PIC interfaces.
  • Validate co-packaged optics performance including high-speed electrical interfaces (SerDes, UCIe), thermal management, signal integrity, power integrity, and optical coupling efficiency.
  • Design and implement test setups for wafer-level, package-level, and system-level testing, including active alignment, thermal cycling, reliability stress, and environmental qualification.
  • Collaborate closely with PIC Design, EIC Design, Packaging, Test Engineering, and Manufacturing teams to close design-for-test (DfT) and design-for-manufacturability (DfM) gaps.
  • Analyze large datasets from validation runs, perform failure analysis, root cause investigation, and drive corrective actions.
  • Support bring-up and debug of silicon photonics prototypes and optical modules.
  • Define and execute qualification plans per industry standards (Telcordia, GR-468, JEDEC, etc.).
  • Mentor junior engineers and contribute to intellectual property through patents and technical publications.

Qualifications & Requirements
  • Master's or PhD in Electrical Engineering, Optical Engineering, Photonics, Physics, or related field.
  • 8+ years (Senior) of hands-on experience in silicon photonics or optical transceiver validation.
  • Strong experience with EIC/PIC co-design validation, multiple Optical Configurations.
  • Expertise in high-speed optical and electrical testing: BER testers, sampling oscilloscopes, VNAs, spectrum analyzers, tunable lasers, optical power meters, and automated test equipment.
  • Proficiency with photonic test automation (Python, LabVIEW, or equivalent) and data analysis tools (JMP, MATLAB, Python/Pandas).
  • Deep understanding of optical coupling, thermal effects in 2.5D/3D packaging, and high-speed signal integrity challenges in CPO systems.
  • Familiarity with industry standards for reliability and qualification of photonic components.
  • Excellent problem-solving, communication, and cross-functional collaboration skills.

Preferred Qualifications
  • Direct experience validating production-grade silicon photonics modules for hyperscale data centers or AI clusters.
  • Knowledge of advanced packaging technologies (2.5D, 3D stacking, hybrid bonding, interposers).
  • Experience with high-speed SerDes (112G/224G PAM4) and optical I/O chiplets.
  • Track record of shipping high-volume optical products.
  • Publications or patents in silicon photonics or co-packaged optics.

Salary range is $175,000 to $215,000 depending on experience, level, and business need. This role may be eligible for discretionary bonus, incentives and benefits.

About Astera Labs

Astera Labs is a semiconductor company that designs and develops purpose-built connectivity solutions for data-centric systems. The company's portfolio of products includes system-aware semiconductor integrated circuits (ICs), boards, and intellectual property (IP) that are used in data center servers, storage, and networking equipment. Astera Labs' products are designed to improve the performance, latency, and power consumption of data-centric systems. The company was founded in 2018 and is headquartered in Santa Clara, California.
Learn more about Astera Labs
Size
51 employees
Industry
Net Income
-$3 million
Founded
2018
Revenue
$5 million
NASDAQ

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