Career Area:

Operations

Job Description:

Your Work Shapes the World at Caterpillar Inc.

When you join Caterpillar, you're joining a global team who cares not just about the work we do – but also about each other.  We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here – we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.

CNC Milling Operator – Gear & Pinion Production

Location: South Milwaukee, WI

Shift: 2nd Shift (Full-Time)

Bonus: $2,000 Sign-On & Retention Bonus

Pay Progression

Step 1: $32.17/hrStep 2: $33.51/hrStep 3: $34.85/hrShift Premium: +$1.00/hr for 2nd shift

Precision That Powers the World

Caterpillar is hiring experienced CNC Gear Machinist with experience producing high-quality gears and pinions for heavy equipment to join our manufacturing team in South Milwaukee, WI.

When you join Caterpillar, you're joining a global team who cares not just about the work we do – but also about each other.  We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here – we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.

At our South Milwaukee facility, you’ll be part of a team that builds some of the largest and most powerful mining machines in the world. This facility specializes in the production of Cat® Electric Rope Shovels (ERS) used in mining operations around the world.

Key Responsibilities

Set up and operate CNC milling centers to machine gear teeth and pinions to tight tolerancesLoad and align workpieces using fixtures, chucks, clamps, and cranesAssemble cutting tools using holders, milling cutters, and indexable insertsLoad CNC programs and perform trial runs to verify accuracyAdjust machine parameters such as feed rate, speed, and offsetsPerform in-process inspections using micrometers, calipers, and other precision toolsMake program edits and manual adjustments as neededClean and deburr finished parts, ensuring quality and readiness for next stepsMaintain a clean, safe, and organized work area

Required Qualifications

1–3 years of hands-on CNC milling experienceAbility to read and interpret blueprints and part drawingsProficiency with precision measuring tools (verniers, calipers, micrometers)Understanding of G & M code programmingBasic knowledge of machine shop math, including trigonometryFamiliarity with machine shop practices and terminologyDemonstrated safe work history

Preferred Qualifications

Previous experience in gear manufacturingKnowledge of gear tooth geometry and gear quality inspectionFamiliarity with Siemens controls and CNC interfacesExperience operating DMG Mori milling machines

Additional Info

Full-time, 40 hours/weekNo relocation assistancePre-employment drug screen and medical evaluation requiredPlease check your email (including spam/junk folders) for updates

Summary Pay Range:

$32.17 - $40.22

Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar. 

Benefits:

Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.

Medical, dental, and vision benefits*

Paid time off plan (Vacation, Holidays, Volunteer, etc.)*

401(k) savings plans*

Health Savings Account (HSA)*

Flexible Spending Accounts (FSAs)*

Health Lifestyle Programs*

Employee Assistance Program*

Voluntary Benefits and Employee Discounts*

Career Development*

Incentive bonus*

Disability benefits

Life Insurance

Parental leave

Adoption benefits

Tuition Reimbursement

       

* These benefits also apply to part-time employees

Visa Sponsorship is not available for this position. This employer is not currently hiring foreign national applicants that require or will require sponsorship tied to a specific employer, such as, H, L, TN, F, J, E, O. As a global company, Caterpillar offers many job opportunities outside of the U.S which can be found through our employment website at www.caterpillar.com/careers.

Posting Dates:

September 2, 2025 - September 29, 2025

Any offer of employment is conditioned upon the successful completion of a drug screen.     

Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities.  Qualified applicants of any age are encouraged to apply.

Not ready to apply? Join our Talent Community.