Optical Manufacturing Principal Engineer

About the role

Lumilens builds the photonics infrastructure behind AI supercomputing, from chip-to-chip optical interconnects to scalable photonic engines. As an Optical Manufacturing Principal Engineer specializing in software and hardware automation, you will work on test automation and networking protocols, validating complex systems at Layer 1 and Layer 2 with tools such as Ixia and building Python-based frameworks. The role validates the quality of photonic components, modules and systems, blending hands-on production testing with software test development and reporting, and supports both new product introduction and volume manufacturing.

Key responsibilities

• Define and develop test software for high-volume manufacturing of optical components, with end-to-end ownership of test and manufacturing software changes under change control and QMS requirements
• Keep documentation, test specifications, test cases, results and defect management up to date, using version control (GitHub/Bitbucket)
• Run functional, regression and performance tests on Layer 1 and Layer 2 networks, validate hardware/software integration with optical interfaces and switches, and configure traffic generators such as IXIA
• Develop, maintain and run automated test cases in Python, integrate test software with cloud monitoring and reporting tools, and continuously improve test frameworks
• Work with developers and hardware engineers to find, reproduce and fix defects, and support root cause analysis
• Own test hardware: equipment selection, tester BOM and cost, schematics, flows, work instructions, tester documentation and specifications, and release of testers for production
• Analyze test results for compliance with performance specs, own product test yield and reliability, and run yield analysis, SPC, GR&R and tester correlation
• Drive continuous improvement plans for yield, cycle time, throughput and scrap reduction, and collaborate with quality teams on qualification testing
• Ensure DFM and DFT guidelines are met, generate test reports, and build troubleshooting guidelines and data analysis tools for manufacturing

Required profile

• Bachelor's degree in Electrical Engineering, Industrial Engineering, Physics, Computer Science or a related field
• 7 years of hands-on experience in software testing and test automation of optical transceiver products, including silicon photonics; 400G, 800G and 1.6T transceiver module testing preferred
• Practical experience in SPC, GR&R, tester correlation and report generation
• Hands-on experience with optical test instruments (optical spectrum analyzers, power meters, polarization controllers, bit-error-rate testers) and Layer 1/2 networking protocols
• Good command of English, ability to train and mentor peers, and international travel required

Required skills

• Python, with SQL and NoSQL for test data logging and analysis a plus
• Scripting in Python, LabVIEW, Visual Basic or shell scripting a plus
• Unit and integration testing, GitHub/Bitbucket or SVN, NI-VISA, SCPI, RS-232, TCP/IP
• Windows Forms or WPF, OOP concepts