CNC Machinist Level III

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

Step into a Machinist Level III role where precision and performance set the standard. In this position, you’ll produce complex, tight-tolerance components, perform full machine setups, and keep production running smoothly with minimal supervision. This is built for experienced machinists who can confidently troubleshoot process challenges, maintain consistent quality, and take on higher-complexity work. If you take pride in craftsmanship, thrive in a technically advanced environment, and are ready to elevate your impact on the shop floor, this is your next move.

Seiler is offering a $5,000 sign on bonus for CNC Machinist hires!

Pay Range: $34.00-$40.00

Perks And Benefits

• Medical, Vision, and Dental health plans
• Parental and Bonding Leave
• PTO
• 401(k) Matching
• Tuition Reimbursement

Here At Seiler, We Are Committed To Not Only Manufacturing And Selling The Highest Quality Systems And Utilizing Modern Techniques, But We Are Also Committed To Our Employees’ Well-being And Happiness. In Addition To The Perks Above We Also Offer

• 9 annual paid holidays
• 1-2 free company events every summer
• Employee Assistance Program (EAP)
• Flexibility in start/stop time for most positions
• Profit-Based Bonus and More!

Responsibilities Include

• Run CNC equipment producing close-tolerance parts; maintain repeatable results across production runs.
• Interpret drawings, tolerances, and job documentation to ensure correct processing.
• Perform in-process inspection, analyze measurement results, and make appropriate adjustments (e.g., offsets or wear compensation per process) to maintain compliance.
• Troubleshoot machining issues (tooling, offsets, process stability, surface finish, dimensional drift) and coordinate corrective action with leads, engineering, and quality.
• Perform setups, changeovers, and first-piece approvals as required (e.g., workholding support, tooling swaps, verifying documentation, inspection support).
• Complete required documentation, inspection records, and traceability requirements for each job.
• Operate shop equipment safely and efficiently.

Qualifications

Requirements

• High school diploma or GED.
• 5+ years CNC machining experience required; advanced candidates commonly have 7-10+ years.
• Technical degree may be a substitute for some experience.
• Demonstrated ability to hold tight tolerances and maintain stable processes.
• Strong blueprint interpretation skills; GD&T comprehension as applicable to work.
• Strong inspection discipline and ability to work independently at an advanced level.
• Ability to lift and carry up to 75 pounds (some positions).

Preferred Qualifications

• Experience supporting complex work on multi-axis platforms and/or precision-turning environments.
• Familiarity with common CNC controls (e.g., Fanuc, Mitsubishi, Okuma).
• Experience supporting first-piece verification and quality documentation rigor.
• Experience identifying and communicating process improvements to reduce variation and scrap.