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CNC Machinist Level 3

Dover · Rock Island, IL · Full time

Posted Sep 10, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you trained or helped a less experienced machinist.

What they are checking: Whether they will support level 1 and 2 machinists, which is part of being a senior person on the floor.

Tell me about a mistake you made that scrapped a part. What did you do next?

What they are checking: Whether they report mistakes honestly and right away, which matters a lot on expensive precision parts.

How do you keep your work area and tools organized during a long shift?

What they are checking: Whether they keep habits that prevent errors and help the next shift pick up cleanly.

What would you do

Your parts start drifting out of tolerance halfway through a run. What do you check?

What they are checking: Whether they troubleshoot logically through tool wear, heat, offsets and fixturing instead of just adjusting blindly.

You notice a guard is broken on your machine and your lead says to keep running. What do you do?

What they are checking: Whether they will stop and speak up about a hazard even when there is pressure to keep parts moving.

About the work

What CNC machines and controls have you set up and run on your own, like Fanuc, Mazak or Okuma?

What they are checking: Whether they can work independently on the equipment in this shop, which a level 3 role expects.

Walk me through a complex setup you have done from start to first good part.

What they are checking: Whether they work through setup, offsets and first-piece inspection in a careful, reliable order.

How do you edit a program at the machine when you see a problem, and when do you go back to the programmer?

What they are checking: Whether they know the limits of a floor edit and keep the official program and the programmer informed.

What measuring tools do you use, and how do you check a tight bore or a true position callout?

What they are checking: Whether they can verify precision features themselves, since parts here go into critical bearings and compressors.

How do you read GD&T on a print, and which callouts do you see most often?

What they are checking: Whether they truly understand the drawing well enough to hold the features that matter most.

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The full job description

As published by Dover.

DOVER PRECISION COMPONENTS: Dover Precision Components ‘DPC’ (‘the Company’) is part of Dover Corporation’s (‘the Parent Company’) Pumps and Process solutions segment. DPC holds market leading positions globally and delivers performance-critical solutions across the oil & gas, power generation, marine, industrial, chemical and general processing markets. We design and manufacture mission-critical equipment components to deliver more affordable, cleaner energy solutions and enable manufacturers to operate more efficiently. WE DELIVER CUSTOMER SUCCESS​ Dover Precision Components delivers products and services that enhance performance, improve safety, reduce carbon emissions, and accelerate clean energy adoption, through collaborative customer relationships, expert engineering, and an innovative culture. Our strong Company portfolio is comprised of long products and services offered under Cook Compression, Cook Mechanical Field Services, Waukesha Bearings, Waukesha Magnetic Bearings, Inpro/Seal, Bearings Plus, and FW Murphy Production Controls. Our global footprint reaches more than twelve locations in the Americas and more than six locations in Europe and China. BUILDING POTENTIAL. SUSTAINING PERFORMANCE. BOOSTING FUTURES. We are diligent in recognizing our employees’ needs and providing an enriching experience through professional developmental opportunities. Our authentic, collaborative company culture, combined with a competitive suite of health and welfare offerings, emulates who we are. We are Dover Precision Components, #LifeAtDPC Responsible for the set-up, calibration, and operation of machines used in production processes. Works from verbal or written instructions, diagrams, or models. Inspects machining operations and finished product against specified tolerances using precision measuring tools. Determines and corrects more complex machine malfunctions. Performs routine maintenance and cleaning. May make calculations as well as assist with numeric controlled programming.. A Support 3 requires broad knowledge of operational procedures and tools obtained through extensive work experience and may require vocational or technical education. Responsibilities typically include: Works under limited supervision for routine situations.. Provides assistance and training to lower level employees.. Problems typically are not routine and require analysis to understand.

Pay Range: USD 23.40 - 29.65 Hourly

This position is eligible to earn a discretionary bonus based on performance metrics and other criteria outlined in our applicable bonus plan.

We consider several job-related, non-discriminatory factors when determining the pay rate for a position, including, but not limited to, the position’s responsibilities, a candidate’s work experience, a candidate’s education/training, the position’s location, and the key skills needed for the position. Pay is one of the Total Rewards that we provide to compensate and recognize employees for their work.


 All qualified applicants will receive consideration for employment without discrimination on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, age, genetic information, or any other factors prohibited by law. Fraudulent Recruiting Disclaimer: Dover Corporation and our affiliated operating companies want to alert applicants to internet job posting fraud, where parties posing as Dover employees, recruiters, or other agents, try to engage with online candidates in an attempt to steal personal and/or financial information. We do not endorse or engage in any recruitment practices that involve payment or personal information outside of our official application and hiring process. Please verify the authenticity of an invitation to apply for a job, or for a job offer by contacting us directly through our Dover and affiliated operating company websites at https://careers.dovercorporation.com/ . To learn how you can protect yourself, review our Recruitment Fraud Notice on our careers site. Attention Applicants: If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, please let us know. Likewise, if you are limited in the ability to access or use this online application process and need an alternative method for applying, we will determine an alternate way for you to apply. Please contact hr@doverprecision.com for assistance with an accommodation. Kindly specify Job Requisition Number / Job Title and Location in response.

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