CNC Machinist

J&M Products, Inc.; San Fernando (CA); Hybrid; USD 65,000 - 90,000; Full time

Job summary

J&M Products, Inc. in California seeks an experienced CNC Machinist to set up and operate mills and lathes, interpreting engineering drawings and GD&T to produce precision parts for aerospace applications.

You will adjust tooling, inspect parts with precision instruments, and participate in continuous improvement while maintaining a clean, safe work environment. Three to five years of relevant experience is preferred.

Qualifications

• Strong knowledge of CNC machining practices, tool setup, workholding, offsets, speeds, and feeds.
• Read and interpret GD&T and manufacturing documentation.
• Machining experience with aerospace materials (Al, SS, Ti).
• Proficient with precision measuring equipment and shop mathematics.
• Familiarity with AS9100, traceability, and nonconforming material controls.
• Ability to produce parts to tight dimensional and surface finish specs.

Responsibilities

• Set up and operate CNC mills and lathes to produce components.
• Read drawings, interpret GD&T, and establish tool offsets.
• Perform first article and in-process inspection using calipers, micrometers, and indicators.
• Adjust speeds, feeds, and tooling to maintain tolerances and surface finish.
• Maintain clean, organized work area and follow safety rules.
• Record production quantities, inspection results, and traceability data.
• Identify nonconforming material and communicate issues to supervision and Quality.
• Participate in setup reduction and continuous improvement activities.
• Perform deburr and secondary operations as required.
• Perform other duties as assigned.

Skills

CNC machining

GD&T

Shop math

Problem solving

Education

High school diploma or GED

Vocational/technical machining training

Tools

Calipers

Micrometers

Height gauges

Indicators

CNC/CAM software

ERP/MRP systems

Job description

Sets up and operates CNC machining equipment to produce precision parts in accordance with engineering drawings, specifications, work instructions, and quality requirements.

• Sets up and operates CNC mills and/or lathes to produce precision machined components.
• Reads and interprets engineering drawings, GD&T, manufacturing routings, work instructions, and applicable specifications.
• Selects and installs cutting tools, fixtures, and workholding; establishes tool and work offsets as required.
• Performs first-piece and in-process inspection using calipers, micrometers, height gages, indicators, and other precision measuring equipment.
• Adjusts offsets, speeds, feeds, and tooling as necessary to maintain dimensional and finish requirements.
• Monitors tool wear, machine performance, and part quality; replaces tooling and reports equipment issues as required.
• Performs deburr, cleaning, and secondary operations as required by the manufacturing process.
• Records production quantities, labor, inspection results, and traceability information accurately and completely.
• Identifies nonconforming product, segregates affected material, and promptly communicates issues to supervision and Quality.
• Maintains a clean and organized work area and follows all safety requirements, machine guarding, and PPE rules.
• Participates in setup reduction, process improvement, scrap reduction, and other continuous improvement activities.
• Performs other duties as assigned.

Qualifications

• Strong knowledge of CNC machining practices, machine setup, cutting tools, workholding, offsets, speeds, and feeds.
• Ability to read and interpret engineering drawings, geometric dimensioning and tolerancing (GD&T), and manufacturing documentation.
• Ability to perform machine setups and make routine adjustments necessary to maintain part conformity.
• Knowledge of common aerospace materials and their machining characteristics, including aluminum, stainless steel, and titanium.
• Proficiency using precision measuring equipment such as calipers, micrometers, height gages, bore gages, and indicators.
• Ability to perform shop mathematics, including decimals, fractions, basic geometry, and trigonometry as required.
• Familiarity with AS9100, configuration control, traceability, first article requirements, and nonconforming material controls.
• Ability to consistently produce parts to close dimensional and surface-finish requirements.
• Strong mechanical aptitude, attention to detail, and problem-solving skills.
• Ability to work effectively with supervisors, programmers, inspectors, and other production personnel.
• Experience with ERP/MRP production tracking and CNC/CAM environments preferred.

Education & experience

• High school diploma or GED required; vocational or technical training in machining is preferred.
• Three to five years related CNC machining experience and/or training, or equivalent combination of education and experience.
• Technical aptitude to understand machine tools, manufacturing processes, inspection requirements, and blueprints.