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Senior Optical Manufacturing Test Engineer - Software Automation

Lumilens· Operations
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SingaporeFull-timePosted 2mo ago

About the role

Optical Manufacturing Test Engineer specializing in software automation responsible for test automation, networking protocol validation (Layer 1/2), and development of Python-based test frameworks to support NPI and volume manufacturing of Lumilens’ photonic components.

Responsibilities

  • Collaborate with design engineering and manufacturing teams to define and develop test software for high-volume manufacturing of high-end optical components.
  • End-to-end manufacturing test ownership: ensure all modifications and upgrades to test and manufacturing software are under change control and follow established QMS requirements.
  • Keep documentation and test specifications up to date. Use systematic processes for test cases, results and defect management.
  • Proficient in using version control systems like Github/Bitbucket
  • Perform functional, regression, and performance testing on Layer 1 and Layer 2 network systems. Validate hardware and software integration with optical interfaces and network switches. Configure and use traffic generators (e.g., IXIA) to simulate network environments and evaluate performance.
  • Develop, maintain, and execute automated test cases in Python.
  • Continuously improve test frameworks and methodologies.
  • Integrate test software with cloud monitoring and reporting tools
  • Collaborate with developers and hardware engineers to identify, reproduce, and resolve defects. Support troubleshooting and root cause analysis to resolve product issues.
  • Responsible for analyzing, defining, developing, and executing continuous improvement plans to achieve test yield, cycle time, throughput, and scrap reduction.
  • Collaborate with quality teams for the planning and execution of qualification testing.
  • Collaborate with design teams and process engineering to ensure design for manufacturing (DFM) and design for test (DFT) guidelines are met.
  • Generate comprehensive test reports for internal and external stakeholders.
  • Develop and implement troubleshooting guidelines and automated tools, templates, and data analysis for testers and products in manufacturing.
  • Collaborate with software engineers, IT and database architects to define better solutions to manage and analyze manufacturing test data.

Qualifications

  • Bachelor’s degree in Electrical Engineering, Industrial Engineering, Physics, Computer Science, or related field
  • 7 years hand-on experience in software testing and test automation of optical transceiver products including Silicon Photonics
  • Experiences in transceiver module tests at 400G, 800G, 1.6T, etc., are preferable
  • In-depth technical knowledge and hands-on experience in yield analysis, problem solving, and implementation of manufacturing processes
  • Familiarity with processor communication interfaces and test automation tools
  • Data query and data analysis skills, using statistical tools and techniques
  • In-depth understanding and practical experience in SPC, GR&R, tester correlation, and report generation
  • Experience and skill in C# and/or Python with database integration: SQL, NoSQL for test data logging and analysis is a plus
  • Ability to write or adapt scripts for automation (Python, LabVIEW, Visual Basic; Shell scripting is a plus)
  • Strong experience with unit and integration testing
  • Good understanding of Layer 1 and Layer 2 networking protocols. Experience with optical testing, network switches, and traffic generators like IXIA
  • Familiar with OOP concepts such as class, interface, inheritance and polymorphism
  • Familiar with Windows Form or WPF
  • Hardware communication protocols: NI-VISA, SCPI, RS-232, TCP/IP
  • Proficiency with version control tools and workflows: Github, Bitbucket or SVN
  • Experience in ongoing reliability testing and quality control best practices
  • In depth understanding of the quality management system and quality standard requirements
  • Capable of managing multiple test projects and priorities in a fast-paced environment
  • Ability to work well in a geographically diverse cross-functional team
  • Good command in English communication both verbal and written, including in-person and virtual presentation skills. Able to train and mentor peers when needed
  • International travel required

Benefits

  • Not specified in the description
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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