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Senior Silicon Photonics Test Engineer (NPI)

Lumilens· Engineering
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SingaporeFull-timePosted 2mo ago

About the role

Senior Silicon Photonics Test Engineer to lead the development of wafer-level test solutions for Near-Package Optics (NPO) and Co-Packaged Optics (CPO) products from the NPI stage through high-volume production, owning the full lifecycle of test development and supporting sustained yield and quality in high-volume manufacturing.

Responsibilities

  • Own and lead the full NPI cycle for silicon photonics wafer level op-to-electro test; design, develop, and qualify wafer-level test systems/testers for NPO/CPO silicon photonics products.
  • Own and lead the tester RFQ process; develop test hardware (wafer probers, optical probe/alignment fixtures, edge/grating coupler interfaces, RF probe cards) and software (automated test sequences, data acquisition, high-speed BERT/PAM4 test integration).
  • Lead the transfer of wafer-level test platforms from NPI to mass production, ensuring test repeatability, throughput, optical alignment stability, and reliability targets are met at volume.
  • Develop and document test process flows, work instructions, and training materials for production operators/technicians on optical probing and alignment procedures.
  • Partner with manufacturing, quality, and equipment vendors to qualify wafer-level testers and optical probers on the production floor.
  • Provide ongoing engineering support to resolve test-related yield, throughput, or equipment issues in NPO/CPO production.

Qualifications

  • Bachelor’s degree or higher in Electrical Engineering, Optical Engineering, Photonics, Physics, or related field.
  • 5+ years of experience in semiconductor or silicon photonics test engineering, with hands-on wafer-level test development experience.
  • Proven track record of taking a test platform from NPI through production transfer at volume.
  • Experience with wafer-level optical probing/alignment systems (active alignment, fiber array probing) and automated test equipment (ATE).
  • Familiarity with high-speed electrical test (SerDes, PAM4/NRZ, BERT) relevant to co-packaged optics electrical interfaces.
  • Familiarity with electro-optical measurement instruments (optical power meters, tunable lasers, source meters, network/spectrum analyzers, BERT).
  • Working knowledge of DOE, SPC, Gauge R&R, and yield/binning analysis methodologies.
  • Understanding of silicon photonics PIC characterization is a plus.
  • Understanding of CPO/NPO packaging architecture (die-to-package interconnect, thermal/optical co-design constraints), prior experience with relevant products is a plus.

Skills

Required:wafer-level test developmentwafer-level optical probing/alignmentautomated test equipment (ATE)high-speed electrical testing
Last updated Aug 8, 2026. Interested? Apply on the company site.

About Lumilens

Connectivity Platform for AI

Lumilens provides next-gen photonic interconnects for massively scaling out – and scaling up – AI compute infrastructure.

Photonic InterconnectsNext-Gen ManufacturingSystem-level knowledgeLumicore platformCPO/SiPh manufacturing
Company profileWebsite

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