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HyperLight is at the forefront of the commercialization of thin-film lithium niobate (TFLN) integrated photonics - a material and process technology that is enabling high-performance, scalable optical components across AI/datacom infrastructure, hyperscale computing, quantum computing, sensing, and beyond. Founded in 2018 and backed by leading venture capital, we’ve built a team and a platform focused on real-world mass deployment of TFLN photonics technology. At the core of our work is the TFLN Chiplet™ platform — a modular, integrated architecture designed for scalability, manufacturability, and seamless integration into complex systems. It offers a rare combination of extraordinary performance and industrial readiness, enabling system developers across applications to deploy the technology fast and ready. We partner with our customers and suppliers from conceptualization, design, and prototyping phases, all the way through mass production to ensure smooth and rapid deployment of TFLN photonic technology. We believe our platform is the key, in the golden age of integrated photonics, to empower humanity to the next level. We assembled a world class team covering engineering, business, and operations. We believe in the power of integrity, innovation, collaboration, and pragmatic solutions. Our diverse team thrives on challenges and is united by a shared commitment to excellence. We take pride in tackling complex challenges with curiosity, humility, and a deep sense of care for one another. Our growing team is looking for a Quality Engineer to join our team in Cambridge, MA. In this role, you will ensure that incoming materials, in-process work, and finished products consistently meet defined quality standards. Your responsibilities will span IQC and OQC inspections, document control, change control evaluation, and internal auditing – all in support of a quality management system registered to ISO 9001, enabling the organization to deliver reliable, specification-conformant products while maintaining continuous improvement and regulatory readiness. As part of your responsibilities, you will: Inspection   Receive and sample-inspect incoming materials, components, and sub-assemblies against defined specifications (IQC)  Operate measurement equipment including calipers, microscopes, and fiber-alignment tools at the inspection workstation  Perform final acceptance inspection on finished products prior to shipment (OQC)  Verify test reports, certificates of conformance, and labeling completeness  Raise non-conformance reports (NCRs) and coordinate quarantine or return-to-vendor (RTV) actions  Log inspection data and maintain lot-traceability records  Document Control   Maintain and version-control SOPs, work instructions, inspection criteria, and engineering drawings On SharePoint and Notion  Ensure obsolete documents are withdrawn from production and correctly archived  Coordinate periodic document review cycles and manage document owner reminders  Review new or revised SOPs, test procedures, and inspection plans for technical accuracy and compliance  Provide QE sign-off within the document approval workflow (ECO / DCO routing)  Ensure approved documents are available at both sites prior to implementation  Auditing   Plan and execute internal process audits against ISO 9001 and applicable standards  Write audit reports documenting findings, observations, and opportunities for improvement (OFIs)  Track corrective action closure from prior audit findings  Conduct or support supplier quality audits and assess vendor quality systems  Serve as host and liaison during customer or third-party certification audits  Change Control   Evaluate engineering change requests (ECRs/ECOs) for quality impact on product, process, and documentation  Facilitate FMEA updates and risk assessments triggered by engineering changes  Determine re-v