We are seeking Mechanical Technologists/Sr. Mechanical Technologists to support experiments involving engineering evaluation, fabrication, assembly, and documentation, often working with radioactive and hazardous materials. These roles require on-site presence and involve tasks such as designing, operating diagnostic equipment, maintaining systems, and ensuring safety and readiness of work areas. The senior level includes advanced assembly, project participation, and technical direction. Candidates need relevant education, experience with mechanical fabrication, reading engineering drawings, and the ability to obtain a security clearance. These positions offer competitive pay, benefits, and opportunities to contribute to national security and scientific innovation. The roles are open to internal and external applicants, with a focus on safety, security, and diversity in the workplace.