Senior Cryogenic Factory Technologist

Mid-Senior Level | Full-time
Engineering | Livermore, CA | 08/06/2026
Reference #: REF
8652T
Job Code: 533.3 Sr Technologist-Mechanical
Organization: Engineering
Position Type: Career Indefinite
Security Clearance: Anticipated DOE Q clearance (requires U.S. citizenship and a federal background investigation)
Drug Test: Required for external applicant(s) selected for this position (includes testing for use of marijuana)
Medical Exam: Not applicable

Join us and make YOUR mark on the World!

Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability.

Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact.

We have an opening for a Senior Cryogenic Factory Technologist
supporting the Cryogenic Target Work center within the National Ignition Facility (NIF). You will provide advanced technical support for the maintenance, inspection, repair, and qualification of cryogenic target system components in support of NIF experimental operations. Working with minimal supervision, you will apply specialized expertise across precision component work, gas handling systems, and quality documentation while providing technical guidance to other technicians.

Work is performed primarily in clean room and radiological contamination-controlled environments. This position is in the Laser Systems Engineering & Operations (LSEO) Division of the Engineering Directorate.

This position requires full-time on-site presence due to the nature of the work.

You will

• Perform inspection, maintenance, and repair of cryogenic target system components including Target Line Replaceable Units (LRU’s), shields, shrouds, masks, and grippers, using precision assembly techniques, soldering, and adhesive bonding processes.
• Interpret and work from mechanical and electrical engineering drawings to verify correct assembly configurations, sensor wiring, and material specifications.
• Operate UV curing equipment, optical inspection cameras, and specialized tooling to verify component quality and ensure assemblies meet drawing and performance specifications.
• Coordinate with outside groups for material processing steps such as plasma etching and gold coating; perform passthrough and conductive testing on completed assemblies.
• Perform gas mix manifold operations including bottle exchanges, leak testing, gas bottle filling via manual and remote GUI methods, and associated administrative tracking.
• Operate the cryogenic target test stand to train and qualify technicians on component maintenance and alignment procedures; perform photo QA and operate data acquisition software in support of test stand activities.
• Develop, author, review, and update procedures, manuals, and qualification documents; coordinate with the Training Department to ensure qualification card revisions are entered into the training management system and formally released.
• Perform administrative tracking, data uploading, work order submission, and inventory management in support of component production and rework activities.
• Perform torque wrench calibration checks and support the calibration tracking program as a collateral duty.
• Perform other duties as assigned.

• Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
• Associate's degree in mechanical, industrial, manufacturing, or electro-optic technology; or a technology-related certificate or diploma with related work experience; or equivalent combination of education and experience in a technical or engineering field that includes mechanical training.
• Advanced skills and understanding of relevant technologies and processes, including interpreting and utilizing precision laboratory equipment, vacuum systems, pressure systems, and electronic test equipment; demonstrated ability to solve complex hardware and system challenges.
• Experience working independently on complex technical tasks with minimal supervision; ability to apply, improve, and recommend updates to established technical guidelines, procedures, and work methods.
• Experience providing technical direction, mentoring, or training to other technicians in a technical operations or R&D environment.
• Ability to interpret and work from mechanical and electrical engineering drawings, schematics, and formal technical procedures.
• Experience with soldering (mechanical/electrical connections), adhesive bonding, and precision component assembly in a controlled environment.
• Experience working with formal work control systems, configuration management practices, and quality records.
• Effective verbal and written communication skills with the ability to author…