Senior Machine Operator Jobs in Rialto, CA (NOW HIRING)

Luna Innovations Incorporated is a global leader in the fiber optics industry. We employ a diverse team of scientists, engineers, and business professionals developing and manufacturing a new generation of technologies and products. We are seeking a Technician in our Chino, CA office, where we develop optical test and measurement equipment and fiber optic sensing products that transform our customer’s ability to make measurements in demanding applications.

A Technician plays a key role in producing, assembling, and testing mechanical, electrical, and fiber optic components for cutting-edge sensing products. Collaborating closely with engineers and research teams, this role supports product development through hands-on experimentation and troubleshooting. Technicians follow detailed assembly processes, maintain accurate documentation, and ensure product quality in a fast-paced manufacturing environment. This role offers an opportunity to contribute to innovative solutions in the optical test and measurement industry while working in a collaborative, team-oriented setting.

Roles & Responsibilities:

• Assemble mechanical, electrical, and fiber optic components on a manufacturing line, following precise specifications and quality standards.

• Perform functional testing and inspection of fiber optic assemblies to ensure product performance and reliability.

• Follow detailed assembly and test procedures, maintaining strict adherence to established guidelines.

• Assist in identifying and troubleshooting basic manufacturing issues, providing timely resolutions.

• Support manufacturing and test engineers in conducting experiments and product evaluations.

• Perform routine preventive maintenance and calibration of equipment according to established procedures.

• Accurately document test results and assembly data using digital tools like Word and Excel.

• Collaborate with engineering teams to suggest and implement improvements in assembly and manufacturing processes.

• Maintain a safe, organized workspace and follow all safety regulations and company policies.

• Any other duties as necessary or requested by the supervisor.

Desired Experience:

• Basic circuit knowledge or soldering experience is a plus

• SM/PM optical fiber splicing experience is a plus

• SM/PM fiber length testing experience is a plus

• SM/PM connector and polishing experience is a plus

• Experience cleaning and assembling metal components under a microscope is a plus

• Associates Degree (AA) or equivalent from a two-year college or technical school is a plus

• Microsoft Suite proficiency is a plus

* Candidates that meet and/or exceed the desired experience will be considered for Technician II or Senior Technician roles.

Work Experience Requirements:

• High School Diploma or GED

• 0-3 years of experience in manufacturing of production

Physical Requirements:

• Ability to stand, sit, or walk for extended periods during manufacturing and assembly tasks.

• Frequent use of hands and fingers for fine motor tasks such as assembling small components and operating tools.

• Ability to lift, carry, or move objects weighing up to 25 lbs; occasional lifting of heavier items with assistance.

• Visual acuity for detailed work, including reading schematics, inspecting fiber optics, and identifying defects.

• Ability to wear appropriate personal protective equipment (PPE), including safety glasses and gloves, as required.

• Manual dexterity to handle delicate fiber optic components and perform precision work.

• Ability to work in a cleanroom or controlled environment, adhering to strict cleanliness and contamination control protocols.

• May involve occasional bending, stooping, or kneeling to access equipment or workstation setups.

• Good hand-eye coordination and steady hands for tasks that require precision and accuracy.

Work Environment:

• Indoor laboratory and production environment with controlled temperature and humidity levels.

• Exposure to bright lighting, cleanroom conditions, and specialized lab equipment.

• Frequent use of microscopes, precision instruments, and fiber optic tools.

• May involve occasional exposure to low-level noise from machinery and testing equipment

• This position is scheduled for the Afternoon Shift, Monday through Friday, 2:00PM to 10:30PM.

* This position requires English proficiency to perform essential job duties, including reading technical documents, following safety instructions, and communicating with team members.

Luna is an Equal Employment Opportunity Employer – Luna provides equal employment opportunities to all employees and applicants for employment without regard to race, color, ancestry, national origin, gender, sexual orientation, marital status, religion, age, disability, gender identity, results of genetic testing, or service in the military or any other characteristic. Equal employment opportunity applies to all terms and conditions of employment, including hiring, placement, promotion, termination, layoff, recall, transfer, leave of absence, compensation, and training. Luna expressly prohibits any form of unlawful employee harassment or discrimination based on any of the characteristics mentioned above.