Assembly Technician

Express Employment Professionals - Cincinnati East; Dublin (CA); On-site; USD 40,000 - 60,000; Part time

Job summary

Express Employment Professionals - Cincinnati East in Dublin, CA is seeking a part-time precision manufacturing technician to perform optical polishing, lapping, grinding, and precision machining on high-value components. The role requires working to tight tolerances and handling delicate parts in a production setting.

The candidate will operate surface grinders, polishers, milling machines and microscopes, perform cleaning and inspection, and follow ISO 9001 work instructions.

Qualifications

• Experience in optical polishing, lapping, or grinding.
• Ability to work with high-tolerance components.
• ISO 9001 experience preferred.
• 2–4 years in precision manufacturing or optics.

Responsibilities

• Grinding and polishing of precision optical components
• Cleaning and visual inspection (microscope use preferred)
• Operation of production equipment (surface grinders, polishers, milling machines, etc.)
• Handling and processing of fragile optical components
• Following detailed work instructions in an ISO 9001 environment
• Maintaining equipment, workspace, and production supplies

Skills

Manual dexterity

Attention to detail

Follow complex instructions

Problem solving

Production/manufacturing environment

Tools

Microscopes

Surface grinders

Polishers

Milling machines

Job description

Position Details

• Location: Dublin, CA
• Schedule: Part-time (Monday–Friday) with opportunity to move to full-time

Summary

This is a precision manufacturing role requiring experience in optical polishing, lapping, grinding, or precision machining (or similar high-tolerance manufacturing).

Candidates must be comfortable working to tight tolerances and handling delicate, high-value components.

This is not a general assembly position. Candidates should have experience working with precision components and tight tolerances.

Key Responsibilities

• Grinding and polishing of precision optical components
• Cleaning and visual inspection (microscope use preferred)
• Operation of production equipment (surface grinders, polishers, milling machines, etc.)
• Handling and processing of fragile optical components
• Following detailed work instructions in an ISO 9001 environment
• Maintaining equipment, workspace, and production supplies

Relevant Experience

• Optical polishing, lapping, or grinding
• Precision machining (tight tolerances)
• Experience with inspection tools (microscopes, comparators, optical inspection)

Core Skills

• Strong manual dexterity and hand-eye coordination
• High attention to detail
• Ability to follow detailed technical instructions independently
• Critical thinking and problem-solving ability
• Comfortable working in a production/manufacturing environment

Preferred Qualifications

• Experience in precision optics manufacturing
• Familiarity with interferometry, metrology, or optical test methods
• Experience working in an ISO 9001 environment
• 2-4 years experience in precision manufacturing or optics

Physical Requirements

• Ability to stand for extended periods
• Ability to lift up to 25 lbs

Additional Requirements

• Must be a “US Person” as defined by ITAR regulations
• References required