Volantis Semiconductor

Designs photonic AI compute hardware

Laser Test Engineer

Hardware Validation & TestingConfirmed live in the last 24 hours

Full-timeSan Francisco, CA, USANo salary listed

About the Job

Requirements

Deep hands-on experience with semiconductor laser testing, characterization, validation, reliability, and qualification, preferably involving VCSELs.
Experience designing prober systems, test fixtures, and related software automation.
Proficiency with optical and electrical test equipment such as source-measure units, optical spectrum analyzers, power meters, vector network analyzers, and beam profilers.
Ability to work independently and in cross-functional teams, including quality and packaging.

Responsibilities

Develop and qualify testing procedures for custom lasers and scale them for mass production.
Own development and implementation of testing and reliability procedures for first- and second-generation custom laser designs and their integration with the wafer-scale interposer.
Partner with the laser design team to define test plans, specifications, and pass/fail criteria for new individually addressable VCSEL array designs.
Characterize prototype devices, including light-current-voltage, spectral, far-field/beam profile, polarization, thermal, and high-speed modulation characteristics, and deliver timely analysis that informs design iterations.
Manage test data, including databases, wafer maps, yield analysis, and statistical process control, to track device performance and process variation in conjunction with designers.
Design, build, and maintain wafer- and die-level prober systems, test fixtures, and automated test software.
Own qualification and ramp-up of VCSEL array product testing systems, scaling from research and development characterization to high-volume production testing.
Work with the laser design, packaging, and wafer-scale interposer teams to prove the reliability of the VCSEL and the overall system.

Desired Qualifications

Experience qualifying and using contract manufacturers for large-volume production testing of VCSELs.
Experience testing high-density VCSEL arrays, both top- and bottom-side emitting.
High-speed direct modulation laser diode test experience.
Understanding of sources of process variation and statistical process control for yield improvement.
Laser reliability qualification experience, such as Telcordia GR-468, and/or laser packaging experience.

Location: Hybrid - SF

Employment: Full-time

Develop and qualify Volantis’s testing procedures for custom lasers and scale for mass production.

You will own development and implementation of testing and reliability procedures for our first- and second-generation custom laser designs, and their integration with the wafer-scale interposer.

Responsibilities

Partnering with the laser design team to define test plans, specifications and pass/fail criteria for new individually addressable VCSEL array designs.
Characterizing prototype devices (LIV, spectral, far-field/beam profile, polarization, thermal and high-speed modulation) and delivering timely analysis that feeds back into design iterations.
Managing test data, including databases, wafer maps, yield analysis and SPC, to track device performance and process variation in conjunction with the designers.
Designing, building and maintaining wafer- and die-level prober systems, test fixtures and automated test software.
Owning qualification and ramp-up of VCSEL array product testing systems, scaling from R&D characterization to high-volume production test.
Working with the laser design, packaging and wafer-scale interposer teams to prove out reliability of the VCSEL itself and the overall system.

Requirements

Deep hands-on experience with semiconductor laser (preferably VCSEL) testing, characterization, validation, reliability and qualification.
Experience designing prober systems, test fixtures and related software automation
Proficiency with optical and electrical test equipment such as SMUs, optical spectrum analyzers, power meters, VNAs, and beam profilers
Ability to work independently as well as in cross-functional teams including quality and packaging

Nice to have

Experience qualifying and using contract manufacturers for large volume production test of VCSELs
Experience testing high-density VCSEL arrays, both top and bottom side emitting.
High speed direct modulation laser diode test experience
Understanding of sources of process variation and statistical process control for yield improvement
Laser reliability qualification (e.g., Telcordia GR-468) and/or laser packaging experience

About the Company

Volantis Semiconductor

Designs photonic AI compute hardware

Volantis Semiconductor designs photonic computing hardware for AI workloads, centered on the Volantis Photonic Motherboard. Its technology directly modulates low-cost VCSELs and densely parallel optical waveguides directly on the chip to replace electrical interconnects, enabling a chip-scale package with massive bandwidth and energy efficiency. This approach differs from traditional silicon photonics by wafer-scale integration and laser-based optics, focusing on scalable interconnect bandwidth and compute efficiency rather than simply adding more silicon cores. The company aims to deliver faster, cheaper AI compute with reduced energy use, with pre-orders expected in early 2026 as it engages early customers.

Company size: 11-50
Company stage: Series A
Total funding: $97M
Headquarters: San Mateo, CA
Founded: 2022

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