Active Alignment Process Engineer
Lumilens
Active Alignment Process Engineer
Lumilens
Photonic interconnects for AI infrastructure
About Lumilens
At Lumilens, we are building the essential photonics infrastructure that will drive tomorrow’s AI supercomputing. From chip-to-chip optical interconnects to scalable photonic engines, Lumilens is ushering in a new era of computing that is faster, cooler, and dramatically more efficient. We’re a well-funded startup backed by Mayfield and led by veterans who have built and scaled some of the industry’s most transformative technologies.
Job Description
We are seeking an experienced Active Alignment Process Engineer to join our high-performance team developing the photonics solutions powering next-generation AI infrastructure. You will be responsible for optical active alignment processes, assembly yield, equipment controls, and alignment algorithms critical for transceiver manufacturing. You will also handle equipment buyoff and qualification, as well as epoxy dispensing and curing processes.
Responsibilities
Lead and optimize optical active alignment processes for transceiver production
Operate, set up, and maintain active alignment equipment, including equipment control and qualification
Develop, implement, and optimize alignment algorithms
Perform equipment buyoff and equipment qualification activities
Oversee epoxy dispensing and curing processes
Design and refine fixtures to improve alignment processes
Work closely with R&D, manufacturing, and engineering teams to ensure high yield and quality in production
Troubleshoot and resolve issues with equipment control, alignment processes, and fixtures
Contribute to process documentation and continuous improvement
Requirements
Minimum 5 years of experience with optical active alignment for transceivers or related photonic devices
Familiarity with active alignment processes and equipment for optics such as FAU, lens, isolator, PIC chip, etc
Experience with AA equipment buyoff and qualification
· Familiar with the key technologies such as stages, controllers, power meters, MPO connectors, laser sources, algorithms, as well as mechanical parts.
Knowledge of epoxy dispensing and curing methods
Experience with equipment control
Experience in fixture design for alignment
Proficiency in developing or optimizing alignment algorithms
Strong analytical and problem-solving skills
Bachelor’s degree or higher in engineering, physics, optics, or related field preferred
Lumilens designs and manufactures optical interconnect products to accelerate AI infrastructure. It provides high-density photonic interconnects—such as high-density pluggable, near-packaged, and co-packaged optics—built with in-house silicon photonics to scale GPU clusters in AI data centers. Its products include 800G and 1.6T optical transceivers for AI networking, and it is pursuing broader integration like Electrical-Optical Interposers through a strategic partnership with POET Technologies. The company differentiates itself through vertical integration, custom robotics-driven manufacturing, and AI-optimized production processes that aim to improve yield and supply chain stability. Lumilens targets hyperscalers and large AI providers, seeking to move interconnect bottlenecks from compute to scalable, efficient data-center networks. Its goal is to enable faster, denser GPU connectivity to support growing AI workloads and models.
Explore more opportunities at Lumilens