Senior / Staff ATE Test Engineer – Optical Transceiver Silicon

The role

Lumilens builds optical interconnect for AI data centers: silicon photonics, mixed-signal ICs, electrical-optical interposers, and the systems around them. Our silicon ships in production AI clusters today, and volume is climbing fast.

You will own test for our mixed-signal ICs — the SerDes, TIAs, modulator drivers, and control silicon at the heart of our co-packaged optics and pluggable transceivers. That spans first-silicon bring-up on the bench through to a multi-site production program running at the OSAT with the yield and cost-per-unit we need to hit our shipping commitments.

Singapore puts you inside the assembly and test supply chain we depend on, a short flight from our partners across the region. You will be the senior test voice on the ground here, working directly with our OSATs and test houses while partnering with design and validation teams across US, India and Singapore.

What you'll do

• Own the test strategy for one or more ICs: coverage plan, test list, insertion flow (wafer sort, final test, system-level).
• Develop, debug, and optimize ATE test programs for mixed-signal and high-speed devices — analog and DC parameters, high-speed signal path, on-chip test points, digital scan, and firmware-driven test modes.
• Specify and bring up test hardware: load boards, probe cards, socketing, and the opto-electrical fixturing our photonics-attached parts require. Work with vendors through layout, fab, and first article.
• Drive first-silicon bring-up alongside design and validation. Correlate ATE results to bench characterization and to system-level performance, and close the loop when they disagree.
• Own the relationship with our OSATs and test houses in the region: program release, correlation across testers and sites, multi-site and throughput optimization, capacity planning, and day-to-day production support.
• Analyze sort and final test data to find yield limiters, marginal tests, and guard-band problems. Lead failure analysis and root cause on returns and excursions.
• Set the standard for how test is done here — reusable test IP, data infrastructure, documentation, and review practice — and mentor junior test engineers as the Singapore team grows.

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