CNC Machinist Level III
Seiler Instrument & Mfg. Co. Inc., Kirkwood, MO, United States
Brief 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!
Location
St. Louis, Missouri – On‑site
Perks and Benefits
Medical, Vision, and Dental health plans
Parental and Bonding Leave
PTO
401(k) Matching
Tuition Reimbursement
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
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) 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.
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.
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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!
Location
St. Louis, Missouri – On‑site
Perks and Benefits
Medical, Vision, and Dental health plans
Parental and Bonding Leave
PTO
401(k) Matching
Tuition Reimbursement
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
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) 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.
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.
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