We have multiple openings for experienced . Senior Optical Metrology Engineers to support the Optics Metrology Group at the National Ignition Facility (NIF) which is home to the world’s most powerful and energetic laser.  The group is responsible for validating the operation, maintenance, certification, and upgrading of large optic metrology tools located at LLNL, as well as supporting Department of Defense Technology customers with specialized optical metrology needs and R&D projects involving freeform optics. These positions are in the Laser Systems Engineering & Operations (LSEO) Division within the Engineering Directorate and will support projects in the Optics and Materials Science & Technology Program in the NIF and Photon Science (NIF & PS) / Light Matter and Fusion (LMF) Directorate.  This position requires full-time on-site presence due to the nature of the work. These positions will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level.   In this role, you will Function independently with minimal direction, taking significant responsibility and using advanced knowledge and judgment to establish objectives, prioritize parallel tasks, allocate resources, and collaborate in the development of innovative methods/technology to guide the completion of projects and contribute to the development of organizational goals. Independently plan and execute complex metrology evaluations, monitoring activities, and experiments with minimal direction. Design and develop complex optical test methods for custom applications. Analyze complex instruments and vendor data to validate manufacturing process control. Evaluate commercial photonics and optics components. Configure and document optical systems for build and analysis. Mentor operators and lead technical training. Provide technical oversight and evaluate project-team work. Estimate schedules and perform project-management functions under minimal direction. Monitor and develop measurement capabilities for precision metrology instruments. Recommend equipment upgrades, spare-part strategies, and replacement options. Perform other duties as assigned. Additional job responsibilities at the SES.4 level Operate under consultative direction with substantial authority, using in-depth analysis and subject matter expertise in highly advanced concepts, to resolve a diverse range of highly complex problems, independently determine strategies, modify approaches, and pursue actions that impact organizational operations or directions and achieve long-term goals. Serve as the subject matter expert and organizational authority for optical metrology, establishing technical strategies, advising customers and vendors, and guiding the development of innovative methods and technologies that support organizational goals. Lead the evaluation, development, and lifecycle strategy for large precision metrology system s , including complex instruments, custom test methods, experiments, data analysis, vendor engagement, and upgrade or replacement paths supporting multidecade NIF and PS operations. Oversee metrology process improvement and vendor technical performance across the NIF optics enterprise, directing productivity and quality strategies, resolving highly complex issues, providing technical oversight, and influencing manufacturing control and compliance with NIF and PS specifications.