Senior Machinist

We are seeking a skilled and detail-oriented Senior Manual Machinist / Precision Assembly Technician to support the manufacture, assembly, testing, and improvement of high-precision air bearing spindle systems. This position combines traditional machining skills with precision mechanical assembly, measurement, testing, troubleshooting, and documentation.

The successful candidate will machine, fit, assemble, inspect, and test precision mechanical components to tight tolerances. The role requires the ability to work independently from engineering drawings, process documentation, and assembly procedures while maintaining the highest standards of quality and workmanship.

Essential Duties and Responsibilities

• Operate manual machine tools including engine lathes, vertical and horizontal milling machines, surface grinders, drill presses, and honing, polishing, lapping, and finishing equipment.

• Perform fitting, alignment, assembly, and adjustment of high-precision air bearing spindle assemblies and related subassemblies.

• Measure and inspect components using precision metrology equipment including micrometers, calipers, dial indicators, bore gauges, height gauges, optical measuring equipment, and precision test instruments

• Assemble components to micron-level tolerances while ensuring proper fit and functionality.

• Conduct testing, performance verification.

• Analyze measurement and test data and make necessary mechanical adjustments to achieve performance specifications.

• Maintain accurate production records, inspection data, and test documentation using computer-based systems.

Preferred Qualifications

• High school diploma or equivalent required.

• Technical school, apprenticeship, or equivalent machining experience preferred.

• Strong understanding of machining practices, tolerances, fits, and geometric relationships.

• Ability to read and interpret mechanical drawings, GD&T, assembly drawings, process documentation, and bills of materials

• Experience with air bearing systems.

• Experience assembling spindles, motors, precision stages, or rotating equipment.

• Familiarity with semiconductor, aerospace, optics, medical device, or precision manufacturing industries.

• Knowledge of balancing, vibration testing, and performance testing.

• Basic understanding of electronics and electromechanical systems.

• Experience working with test stands and computerized measurement equipment.

Preferred Skills

Machining Skills: Manual lathe operation, manual milling machine operation, surface grinding, and precision drilling, reaming, and boring

Mechanical Assembly Skills: Precision assembly of mechanical systems

and assembly adjustment and tuning

Measurement & Inspection Skills: Tolerance verification, runout measurement, concentricity and alignment verification, and use of inspection and calibration equipment

Computer Skills: Basic computer proficiency, reviewing electronic drawings and work instructions, and recording inspection and test results

Physical Requirements

• Ability to lift up to 40 pounds.

• Ability to stand for extended periods.

• Good manual dexterity and hand-eye coordination.

• Ability to work with small precision components.

• Excellent visual acuity and attention to detail.

Key Success Factors

The ideal candidate is a hands-on craftsman who takes pride in producing high-quality precision work. Success in this role requires exceptional attention to detail, strong problem-solving abilities, patience, mechanical aptitude, and the ability to consistently assemble and verify products with micron-level precision.