---
title: 'Senior Optical Manufacturing Test Engineer - Software Automation at Lumilens'
canonical: 'https://feeny.ai/job/senior-optical-manufacturing-test-engineer-software-automation-lumilens-thailand-yn8n0cv9ebk0'
type: 'job'
last_seen: '2026-11-09'
---

# Senior Optical Manufacturing Test Engineer - Software Automation at Lumilens

- **Company:** Lumilens
- **Location:** Thailand
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2025-10-19
- **Last confirmed live:** 2026-11-09
- **Apply:** https://jobs.ashbyhq.com/lumilens/258ea064-dba9-428f-8624-7140e680d869

## Job description

## ABOUT LUMILENS

At Lumilens we are building the critical photonics infrastructure that powers tomorrow’s AI supercomputing. From chip-to-chip optical interconnects to scalable photonic engines, Lumilens is unlocking a new era of computing—faster, cooler, and massively more efficient.

We’re a well-funded startup backed by Mayfield and led by veterans who’ve built and scaled some of the most transformative technologies in the industry. This isn’t incremental innovation it’s a ground-floor opportunity to rethink the optical layer from the silicon up. You’ll work alongside a team of world-class engineers solving some of the hardest challenges in optics, systems, and scale. Every line of code, every design decision, every breakthrough you help deliver will shape the infrastructure of tomorrow.

If you're looking for mission, momentum, and the chance to make an outsized impact, jump on the rocket ship. We’re just getting started.

## POSITION OVERVIEW

As an Optical Manufacturing Test Engineer specializing in software automation, you will work on test automation and networking protocols. You will help validate complex systems at Layer 1 and Layer 2 using tools like Ixia and build Python based frameworks. This is a critical role in validating and ensuring the quality of Lumilens’ photonic components, modules, and systems. This role blends hands-on production testing with software test development and reporting, supporting both new product introduction (NPI) and volume manufacturing.

You’ll work closely with optical design, hardware, and manufacturing teams to perform design for manufacturing, calibration, characterization, and troubleshooting.

## DUTIES/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. This includes monitoring software revision control, bug tracking, tester updates, regression testing, test logs, etc.
- 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.

## SKILLS/EXPERIENCE

- Bachelor’s degree in Electrical Engineering, Industrial Engineering, Physics, Computer Science, or related field, plus 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.

All qualified applicants will receive consideration for employment without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by local law, regulation, or ordinance.

## About Lumilens

## Company Overview
- **One-liner**: Lumilens designs and manufactures next-generation photonic interconnects to massively scale AI compute infrastructure.
- **Entity Type**: Private (Series B – led by Accton Technology; prior Series A of $30M from Mayfield and Spark Capital)
- **Headquarters**: San Jose, California, USA
- **Founded**: 2024
- **Founders**: Ankur Singla (CEO), Samuel Liu (VP Products), Ritesh Kapahi (VP/GM India), Dave Friedman (VP Operations)

## Core Business
- **Primary industry**: Photonics / optical interconnects for AI data centers
- **Target customers**: Large-scale AI providers and hyperscale data center operators (B2B, Enterprise)
- **Mission**: “To rapidly innovate in photonics and connectivity architectures to enable the massive scaling of compute infrastructure required to deliver the full potential of AI.”

## Products & Services
- **Photonic Interconnects (Scale-Out & Scale-Up)**: High-density, low-latency optical links that enable cluster-to-cluster and direct GPU-to-GPU connectivity. Supports 100x higher quantity of GPU direct connections than legacy approaches.
  - *Type*: Hardware (silicon photonics modules) + integrated manufacturing
- **Automated Manufacturing Platform**: End-to-end custom robotics and AI-optimized production processes to maximize yield, quality, and supply-chain flexibility.
  - *Type*: Service / Manufacturing capability (in-house)

## Market Standing
- **Valuation/Market Cap**: Not publicly available
- **Key Metric**: Total funding – $30M Series A (June 2024); Series B led by Accton Technology (amount undisclosed)
- **Notable Investors/Partners**: Mayfield, Spark Capital, Accton Technology
- **Growth Signals**:
  - Headcount grew 287% YoY (54 employees as of mid-2025) [linkedin.com]
  - Operations in 8 countries: USA, India, Thailand, Poland, Singapore, Czechia, South Korea, Malaysia
  - 48 active job postings (+23.1% monthly growth) [linkedin.com]
  - Leadership team with deep photonics/networking experience from Cisco, Juniper, Meta, Lumentum, Coherent

## Competitive Advantages
- **In-house silicon photonics development** – full control over design and supply chain
- **Systems-level expertise** – can partner on both scale-out and scale-up architectures
- **Manufacturing automation** – robotics + AI processes enable faster innovation, higher quality, and predictable deployment
- **Standards-based interconnects** – easy deployment into existing infrastructure
- **Manufacturing anywhere** – supply-chain continuity and scalable manufacturing

## Strategic Focus
- Enable massive scaling of AI infrastructure by overcoming electrical/copper limitations with advanced photonics
- Disaggregate GPUs to mitigate power and density challenges in data centers
- Expand manufacturing capacity globally and continue to automate production
- Align product roadmap with industry standards to accelerate adoption

## Why Work Here
- **Culture**: Fast-paced startup environment with deep technical expertise; mission-driven focus on enabling the future of AI
- **Work policy**: In-office (HQ San Jose, CA with Bengaluru, India as major hub) [builtin.com]
- **Perks**: Opportunity to work on cutting-edge photonics, robotics, and AI manufacturing; direct impact on world’s largest AI infrastructure
- **Engineering culture**: Heavy emphasis on silicon photonics, hardware design, robotics automation, and system-level architecture. Teams are led by veterans from Cisco, Juniper, Meta, Lumentum, Coherent.

## Sources
1. [lumilens.com](https://lumilens.com/) – Company overview, mission, leadership, products
2. [lumilens.com/company](https://lumilens.com/company) – Vision, investors, leadership team
3. [builtin.com](https://builtin.com/company/lumilens) – Career page, employee count, year founded, office policy
4. [linkedin.com](https://www.linkedin.com/company/lumilens) – Headcount, funding details, geographic/department breakdown, job trends, talent sources
5. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/lumilens) – Current job openings (48 listings)

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