Senior CNC Machinist III: Precision & Setups

Seiler Instrument & Mfg. Co. Inc.; St. Louis (MO); On-site; USD 47,000 - 55,000; Full time

Benefits offered by this job

Medical, Vision, and Dental health计划

Parental and Bonding Leave

PTO

401(k) Matching

Tuition Reimbursement

9 annual paid holidays

1-2 company events every summer

Employee Assistance Program (EAP)

Flexible start/stop time

Profit-Based Bonus

Job summary

Seiler Instrument & Mfg. Co. Inc. is seeking an experienced CNC Machinist Level III to produce tight-tolerance components, perform full machine setups, and troubleshoot process challenges with minimal supervision.

This position includes a $5,000 sign-on bonus and a pay range of $34.00–$40.00 per hour, plus competitive benefits such as medical/dental/vision, PTO, 401(k) matching, tuition reimbursement, and paid holidays.

Qualifications

• High school diploma or GED required with 5+ years CNC machining experience.
• Advanced candidates typically 7–10+ years.
• Demonstrated ability to hold tight tolerances and maintain stable processes.
• Strong blueprint interpretation and GD&T comprehension.

Responsibilities

• Run CNC equipment producing close-tolerance parts with repeatable results.
• Interpret drawings and tolerances to ensure correct processing.
• Perform in-process inspection and adjust offsets to maintain quality.
• Troubleshoot tooling, offsets, and process stability; coordinate with leads/engineering/quality.
• Perform setups, changeovers, and first-piece approvals as required.
• Complete documentation and traceability for each job.
• Operate shop equipment safely and efficiently.

Skills

CNC machining

Blueprint reading

GD&T

Troubleshooting

Independent worker

Education

High school diploma or GED

Technical degree as substitute

Tools

Fanuc controls

Mitsubishi controls

Okuma controls

Job description

Seiler Instrument & Mfg. Co. Inc. is seeking an experienced CNC Machinist Level III to produce tight-tolerance components, perform full machine setups, and troubleshoot process challenges with minimal supervision.

This position includes a $5,000 sign-on bonus and a pay range of $34.00–$40.00 per hour, plus competitive benefits such as medical/dental/vision, PTO, 401(k) matching, tuition reimbursement, and paid holidays.