--- title: 'Product Quality Engineer at Lumilens' canonical: 'https://feeny.ai/job/product-quality-engineer-lumilens-chon-buri-45vb6wx9tam7' type: 'job' last_seen: '2026-09-07' --- # Product Quality Engineer at Lumilens - **Company:** Lumilens - **Location:** Chon Buri, Thailand - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-09-03 - **Last confirmed live:** 2026-09-07 - **Apply:** https://jobs.ashbyhq.com/lumilens/1d35efa5-5400-4205-a076-6d8919ee1058 ## 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 We are seeking a Product Quality Engineer to join our rapidly growing team. This isn't just another role. This is a unique opportunity to own the technical vision for our products, work with a world-class multi-disciplinary team, and make a tangible impact from the ground up. The successful candidate will work closely with contract manufacturers, suppliers, and internal cross-functional development teams to meet product objectives and instill a culture of quality and continuous improvement. What You'll Do: - Drive reliability execution for photonic components including Silicon Photonics ICs, lasers (DFB, CW lasers etc), and Optoelectronic SiPs used in high-speed optical networks. - Partner with R&D and design engineering to provide early reliability input during the product development lifecycle. - Define and execute qualification plans aligned with Telcordia/GR-468, JEDEC, and other relevant standards for telecom and datacom products. - Conduct accelerated life testing (ALT), failure analysis, degradation modeling, and root cause investigations to guide design and process improvement. - Collaborate closely with cross-functional teams including Photonics Design, Packaging, Manufacturing, Quality Engineering, Product Marketing and Supply Chain to ensure robust product development and transfer to production. - Lead supplier qualification activities and implement supplier quality metrics for critical photonics components. - Support supplier audits, assess factory capability, process controls, reliability models, and product roadmaps. - Support the infrastructure to perform incoming component validation - Develop and maintain Design for Reliability (DfR) methodologies, including predictive modeling and statistical analysis. - Prepare, present and document technical reviews, reliability reports, and risk assessments for internal and customer-facing engagements. Key Qualifications: - M.S. in Electrical Engineering, Photonics, Physics, Materials Science, or related field, or equivalent experience in photonics reliability engineering with direct exposure to Silicon Photonics, laser technologies, and optical transceivers. - Strong background in photonics device physics, photonics packaging, and failure mechanisms. - Demonstrated success supporting NPI programs and product qualification from concept through volume production. - In-depth knowledge of relevant standards (GR-468, Telcordia, JEDEC, MIL-STD). - Proficiency with reliability modeling, statistical analysis (e.g., Weibull, Arrhenius), and tools such as JMP, Minitab, or similar. - Hands-on experience with reliability test systems (e.g., HTOL, HAST, T/H, TC), and FA tools (e.g., SEM, FIB, X-ray, spectroscopy). - Effective communicator with the ability to influence cross-functional and supplier teams. - Experience in a fast-paced, high-tech environment serving telecom/datacom markets. Preferred Skills: - Experience in integrated photonics packaging and co-design (optical + electrical). - Familiarity with wafer-level reliability and optical wafer probing. - Prior experience on engagements with Tier-1 datacenter customers or hyperscalers. Why Join Us? This is more than a job. It's a chance to get in on the ground floor of a well-funded company set to disrupt a multi-billion dollar market. You will have the autonomy to make a massive impact, the resources to execute your vision, and a significant stake in the company you help build. ## What we offer - Competitive salary commensurate with experience - Comprehensive benefits package including health insurance - Professional development opportunities and certification support - Access to cutting-edge technology and cloud platforms - Collaborative work environment with cross-functional teams - Lumilens is an equal opportunity employer. All qualified applicants will receive consideration without regard to race, color, religion, gender, identity, orientation, veteran status, disability, or any other legally protected status. Working conditions - This position is onsite - May require quarterly off-site meetings or travel - Regular use of a computer and other office equipment is necessary - Interaction with team members and external contacts is a regular part of the job - May require occasional overtime and flexibility in work hours to accommodate the executive’s needs ## 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) ## Other roles at Lumilens - [Staff Wafer-Level Testing Equipment Engineer](https://feeny.ai/job/staff-wafer-level-testing-equipment-engineer-lumilens-singapore-2p0ya27rda60) — Singapore - [Sourcing Manager (Foundry & OSAT)](https://feeny.ai/job/sourcing-manager-foundry-osat-lumilens-singapore-26re9q580khj) — Singapore - [Senior/ Staff NPI Wafer Bumping/Fan-Out Process Engineer](https://feeny.ai/job/senior-staff-npi-wafer-bumping-fan-out-process-engineer-lumilens-singapore-ma0tx35az5eq) — Singapore - [Staff Wafer-level Testing Engineer (Operations & Process)](https://feeny.ai/job/staff-wafer-level-testing-engineer-operations-process-lumilens-singapore-cvp2fdz9w4qr) — Singapore - [Optical Transceiver Product Engineer](https://feeny.ai/job/optical-transceiver-product-engineer-lumilens-thailand-f5tgy64vcaxr) — Thailand - [Analog Layout Lead](https://feeny.ai/job/analog-layout-lead-lumilens-san-jose-5fmv4e96vhpt) — San Jose, CA - [IT Specialist](https://feeny.ai/job/it-specialist-lumilens-bengaluru-c85avweewvq3) — Bengaluru, India - [IT Specialist Intern](https://feeny.ai/job/it-specialist-intern-lumilens-san-jose-psmknddggbz7) — San Jose, CA - [Senior Staff Software Engineer, Data](https://feeny.ai/job/senior-staff-software-engineer-data-lumilens-san-jose-mxja907kewxx) — San Jose, CA - [Director Product Line Management (Co Packaging Optical Solution)](https://feeny.ai/job/director-product-line-management-co-packaging-optical-solution-lumilens-san-jose-7mv3d8xfdg84) — San Jose, CA