Prototype Tooling Machinist/ Machinist II 1st shift

Lehigh Heavy Forge Corporation; Corona (CA); On-site; USD 70,000 - 100,000; Full time

Job summary

Lehigh Heavy Forge Corporation in Corona, CA, seeks a skilled machinist to set up and operate manual mills, lathes, and grinders, ensuring precise tooling and tolerances.

Ideal candidates have 5+ years of prototype and tooling experience, strong machining math skills, and the ability to read blueprints. You will perform in-process inspections, maintain records, and collaborate across engineering, quality, and production teams.

Qualifications

• High school diploma or equivalent.
• Minimum 5 years of prototype and tooling experience or evidence of mastery.
• Proficiency with machining math, including geometry and trigonometry.
• Ability to use precision measurement tools with a high degree of accuracy.
• Strong understanding of materials.

Responsibilities

• Set up and operate manual milling machines, lathes, grinders, and other machine tools.
• Operate conventional mills, lathes, drill presses, saws, and grinders.
• Work closely with engineering and manufacturing teams to create production tooling.
• Complete set-ups and operate equipment with minimal supervision/assistance.
• Read and interpret blueprints, engineering drawings, GD&T, and work instructions.
• Select appropriate tools, fixtures, speeds, and feeds for efficient machining.
• Perform in-process inspections using calipers, micrometers, height gauges, and other measuring devices.
• Adjust machine settings to maintain tolerances and meet quality standards.
• Troubleshoot machining issues, including tool wear, material inconsistencies, and programming errors.
• Maintain accurate production records, including job travelers, inspection reports, and equipment logs.
• Perform routine maintenance on machines to ensure safe, reliable operation.
• Work collaboratively with engineering, quality, and production teams to improve processes.
• Comply with all safety standards, company policies, and ISO/AS quality requirements.
• Other duties may be added if necessary to meet business needs

Skills

Attention to detail

Mechanical aptitude

Problem-solving skills

Time management

Teamwork and communication

Commitment to safety and quality

Education

High school diploma or equivalent

Technical/vocational training in machining

Job description

ESSENTIAL DUTIES & KEY RESPONSIBILITIES:

• Set up and operate manual milling machines, lathes, grinders, and other machine tools.
• Operate conventional mills, lathes, drill presses, saws, and grinders
• Work closely with engineering and manufacturing teams to create production tooling
• Complete set-ups and operate equipment with minimal supervisions/assistance
• Read and interpret blueprints, engineering drawings, GD&T, and work instructions.
• Select appropriate tools, fixtures, speeds, and feeds for efficient and accurate machining.
• Perform in-process inspections using calipers, micrometers, height gauges, and other measuring devices.
• Adjust machine settings to maintain tolerances and meet quality standards.
• Troubleshoot machining issues, including tool wear, material inconsistencies, and programming errors.
• Maintain accurate production records, including job travelers, inspection reports, and equipment logs.
• Perform routine maintenance on machines to ensure safe, reliable operation.
• Work collaboratively with engineering, quality, and production teams to improve processes.
• Comply with all safety standards, company policies, and ISO/AS quality requirements.
• Other duties may be added if necessary to meet business needs

SKILLS & COMPETENCIES:

• Attention to detail
• Mechanical aptitude
• Problem-solving skills
• Time management
• Teamwork and communication
• Commitment to safety and quality

EDUCATION & EXPERIENCE

Required

• High school diploma or equivalent
• Minimum 5 years of prototype and tolling experience or evidence of mastery
• Proficiency with machining math, including geometry and trigonometry.
• Ability to use precision measurement tools with a high degree of accuracy.
• Strong understanding of materials

Desired

• Technical/vocational training in machining

PHYSICAL DEMANDS:

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee is frequently required to stand and hear. The employee is frequently required to walk; reach with hands/arms; lift and/or lower; push and/or pull; and use hands to finger, handle, feel and/or finely manipulate objects. The employee must frequently lift/move and/or push/pull up to 20 lbs. and occasionally lift/move and/or push/pull up to 50 lbs. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus. Use of vision correction is acceptable, if necessary; however, any vision correction apparatus must meet all safety guidelines for the area of activity.

Equal Opportunity Employer

This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.