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Senior Machine Operator Jobs in O Fallon, MO (NOW HIRING)

Clemco Industries Corp.

Machine Builder

Washington, MO

$20.38 - $35.79/hr

Collaborates with leads, supervisors, senior level and highly skilled technicians to develop ... Experience in operating a forklift and overhead crane may be required in some areas * Working ...

MasterCard

Senior AI Platform Engineer (DevOps)

O Fallon, MO

$121K - $156K/yr

The AI Platform Engineering team is responsible for building, operating, and evolving Mastercard ... Design, build, and operate enterprise AI platforms supporting machine learning, generative AI, and ...

BJC HealthCare

MILLWRIGHT - SR

Saint Louis, MO · On-site

$23.10 - $38.36/hr

The Senior Millwright is the first point of contact when equipment goes down. Responsibilities ... Operating machine tools to fabricate parts required during overhaul, maintenance or set-up of ...

BJC HealthCare

MILLWRIGHT - SR

Saint Louis, MO

$22.75 - $29.75/hr

Operating machine tools to fabricate parts required during overhaul, maintenance or set-up of ... The Senior Millwright is the first point of contact when equipment goes down. Responsibilities

GRVTY

Senior Data Scientist

Saint Louis, MO

Operating in a fast-paced, mission-focused environment, you will independently manage multiple ... Experience applying machine learning or artificial intelligence techniques to intelligence problems.

BMEP Group

Senior Field Technician

Saint Louis, MO

$40 - $45/hr

... operating efficiently. Clients include: * National restaurant chains * Healthcare and senior living ... Service ice machines, prep tables, merchandisers, and open-air display coolers * Troubleshoot and ...

GRVTY

Senior Data Scientist

Saint Louis, MO · On-site

Operating in a fast-paced, mission-focused environment, you will independently manage multiple ... Experience applying machine learning or artificial intelligence techniques to intelligence problems.

GRVTY

Senior Data Scientist

Saint Louis, MO

Operating in a fast-paced, mission-focused environment, you will independently manage multiple ... Experience applying machine learning or artificial intelligence techniques to intelligence problems.

Sonida Senior Living

Dishwasher

O Fallon, MO

$12.25 - $15.75/hr

Find your joy here, at Park Place Senior Living of Winghaven, a Sonida Senior Living community! We ... Keeps the dishwashing machine and dish room in clean operating condition. * Sweeps and mops the ...

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All JobsMachine Operator JobsSenior Machine Operator JobsSenior Machine Operator Jobs in O'Fallon, MO

Senior Machine Operator information

See O Fallon, MO salary details

$23.4K

$75.1K

$152.9K

How much do senior machine operator jobs pay per year?

As of Aug 31, 2026, the average yearly pay for senior machine operator in O'Fallon, MO is $75,107.00, according to ZipRecruiter salary data. Most workers in this role earn between $38,800.00 and $96,400.00 per year, depending on experience, location, and employer.

What is a senior machine operator?

Senior Machine Operators are experienced professionals responsible for operating, maintaining, and troubleshooting industrial machinery in manufacturing or production settings. They oversee machine performance, ensure safety standards are met, and may supervise junior operators. Their role often includes setting up machines, performing quality checks, and making adjustments to optimize efficiency and product quality. Senior Machine Operators typically have several years of hands-on experience and a strong understanding of mechanical systems.

What are the key skills and qualifications needed to thrive as a senior machine operator?

To thrive as a Senior Machine Operator, you need advanced mechanical aptitude, experience with manufacturing equipment, and often a high school diploma or equivalent with additional technical training. Familiarity with CNC machines, PLC systems, and safety certifications like OSHA are commonly required. Strong attention to detail, problem-solving abilities, and effective teamwork are crucial soft skills for this role. These competencies ensure efficient production, minimize errors, and maintain a safe and productive work environment.

What opportunities for career advancement are available to senior machine operators within manufacturing organizations?

Senior Machine Operators often have several pathways for career growth, including moving into supervisory or team lead roles, such as Production Supervisor or Shift Manager. Many organizations value the technical expertise and leadership skills developed in this position, making it possible to transition into roles that focus on process improvement, quality assurance, or training new operators. Additionally, pursuing certifications in advanced manufacturing technologies or equipment maintenance can open doors to specialized roles, such as Maintenance Technician or Process Engineer. Demonstrating initiative and strong problem-solving abilities can further increase advancement prospects within the company.

What is the difference between Senior Machine Operator vs Machine Operator?

AspectSenior Machine OperatorMachine Operator
CredentialsTypically requires more experience and sometimes certifications in specific machineryBasic machine operation certifications or training
Work EnvironmentOversees complex machinery, may supervise othersOperates machinery under supervision or standard procedures
ResponsibilitiesMaintains, troubleshoots, and optimizes equipment; mentors junior staffPerforms routine machine operation tasks

The main difference between a Senior Machine Operator and a Machine Operator lies in experience, responsibilities, and leadership. Senior Machine Operators handle more complex tasks, oversee equipment, and often mentor others, whereas Machine Operators focus on routine operation. Both roles require relevant certifications, but the senior position demands more expertise and experience.

What job categories do people searching Senior Machine Operator jobs in O'Fallon, MO look for?

The top searched job categories for Senior Machine Operator jobs in O'Fallon, MO are:

What cities near O'Fallon, MO are hiring for Senior Machine Operator jobs?

Cities near O'Fallon, MO with the most Senior Machine Operator job openings:

Senior Machine Operator jobs near you

Machine Builder

Clemco Industries Corp.

Washington, MO

$20.38 - $35.79/hr

Full-time

Re-posted 10 days ago

Job description

www.clemcoindustries.com
Machine Builder
Hours: Monday through Friday 6:00 am to 2:20 pm with ½ hour for lunch
Status: Hourly/Full-time/Benefits eligible
Reports to: Production Supervisor
Apprentice to skilled applicants welcome.
Summary: Builds standard and custom abrasive blasting cabinets
DESCRIPTION OF WORK:
  • Assembles and installs standard equipment
  • Builds and installs electrical and electronic circuitry from schematics, detailed drawings or other instructions
  • Installs PLCs and other electronics
  • Uses machine tools, hand tools, multimeters, tow motor, overhead crane and forklifts as needed to accomplish the work
  • May assist with dismantling equipment after it has been tested to assist in the shipping process when necessary
  • Proactively works to gain knowledge of other departments, troubleshooting standard or project equipment from drawings or sketches with the mentoring and guidance of more senior or highly skilled technicians
  • Seeks out and implements continuous quality improvements
  • Actively participates in LEAN activities such as PDCA, A-3, and Root Cause Analysis activities
  • Collaborates with leads, supervisors, senior level and highly skilled technicians to develop solutions for customers, demonstrate the equipment’s operations, and find shipping solutions to best protect the equipment during transfer to distributors or customers
  • May attend seminars or other training to keep skills up to date
    • Some candidates may be eligible for formal apprenticeship classes as well
  • Demonstrates flexibility when asked to take on new things
SKILLS REQUIRED:
Apprenticeship level requirements:
  • High school diploma or GED
  • High level of mechanical aptitude to learn and perform moderately complex mechanical, hydraulic, pneumatic and electrical components to efficiently build our standard equipment
  • A working knowledge of basic machine tools
  • General knowledge of mechanics
  • Conscientious safety mindset
  • Great attention to detail
  • Computer literacy and ability/willingness to learn more
Skilled levels require:
  • Degree is helpful, but not required
    • Completion of Apprenticeship program or Associates degree will ultimately be required to progress in the role
    • Some level of formal education related to engineering or manufacturing is highly beneficial to start
  • Troubleshooting skills and experience required
  • NEC amp; UL508a knowledge a plus
  • Good working understanding of electricity and electrical components
  • Must be able to read and apply electrical schematics, mechanical and/or electrical drawings and ladder diagrams
  • Experience in operating a forklift and overhead crane may be required in some areas
  • Working knowledge of PLCs, programming, machinery sequences of operations, HMI, Ethernet/IP, relays, power supplies, electricity (480VAC, 240VAC, 120VAC, 24VDC)
  • Computer skills
  • HMI and PLC downloads
  • Ethernet troubleshooting
  • Ladder Logic
JOB CONDITIONS: Job is inside, but area is not climate controlled as tractor trailer delivery doors are open periodically throughout the day. Must follow established safety rules to prevent injury to self and others. Protective equipment, assistance with lifting, and respirators required for some tasks; all PPE is provided by Clemco. Job requires nearly continual standing, moderate physical exertion, and continuous attention to detail. Lifting could be up to 50 pounds; help and appropriate protective equipment is available. Continuous mental and visual attention are required for safety and to maintain required tolerances.
Equal Employment Opportunity Statement
Clemco Industries Corp. is an Equal Opportunity Employer. We are committed to creating an inclusive environment for all team members and applicants. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, veteran status, or any other legally protected status.
We are dedicated to providing reasonable accommodations to qualified individuals with disabilities throughout the hiring process and during employment.

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