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

Sr Packer

Hazelwood, MO ยท On-site

$14.25 - $16.50/hr

Description Position Summary The Sr Packer performs all shipping, material movement and receiving ... Operating machinery or using tools as required for packaging, such as tape dispensers, maintaining ...

Sr Packer

Hazelwood, MO ยท On-site

$13.75 - $16.75/hr

Description Position Summary The Sr Packer performs all shipping, material movement and receiving ... Operating machinery or using tools as required for packaging, such as tape dispensers, maintaining ...

Sr Technician Warehouse

Villa Ridge, MO ยท On-site

$14.25 - $17.75/hr

Experience operating a forklift and pallet jack * Three years of experience in warehouse or ... machinery, climb stairs, use keyboard and mouse * Occasionally : work in confined spaces or remote ...

Pharmacy Technician

Saint Louis, MO

$16.50 - $20.25/hr

Operating automated machines to prepack medications. * Mixing IV medications and sanitizing IV room ... senior living communities, and hospitals. We also cater to individuals with behavioral needs ...

Pharmacy Technician

Saint Louis, MO ยท On-site

$16.50 - $20.25/hr

Operating automated machines to prepack medications. * Mixing IV medications and sanitizing IV room ... senior living communities, and hospitals. We also cater to individuals with behavioral needs ...

Pharmacy Technician

Saint Louis, MO ยท On-site

$16.50 - $20.25/hr

Operating automated machines to prepack medications. * Mixing IV medications and sanitizing IV room ... senior living communities, and hospitals. We also cater to individuals with behavioral needs ...

Senior Consultant - SAP Concur

Saint Louis, MO

$61.25 - $83.50/hr

Analyze current-state processes and provide recommendations related to operating models, policy ... and machine learning. Qualifications Required * Bachelor's degree, or Associate's degree plus 6+ ...

Showing results 41-60

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 15, 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 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 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 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 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:

Sr Packer

bioMerieux Inc.

Hazelwood, MO โ€ข On-site

$14.25 - $16.50/hr

Other

Medical, Dental, Vision, Life, Retirement

Re-posted 2 days ago


Job description


Description


Position Summary

The Sr Packer performs all shipping, material movement and receiving duties and confirms inventory levels. This job directly affects both internal and external customers. It also affects Manufacturing, Supply Chain, and Quality goals of the division. Routine internal contacts may include, but not limited to Sales Administration, Maintenance, Engineering, Quality, Material handling and Planning.

Primary Duties
  1. Reading and interpreting packing orders or lists to determine the items to be packed
  2. Inspecting and preparing items for packaging, ensuring they are not damaged or defective
  3. Wrapping, packing, and securing items in containers or boxes using a variety of cushioning materials
  4. Sealing and labeling packages appropriately according to packing instructions or shipping regulations
  5. Operating machinery or using tools as required for packaging, such as tape dispensers, maintaining an organized and clean work environment to ensure safety and efficiency
  6. Performing inventory checks and reporting any discrepancies to the supervisor
  7. Follows all departmental and company safety policies including maintaining warehouse and work areas following 5S principles
  8. Assembling, preparing, and loading containers or pallets for shipping
  9. Perform all work in compliance with company quality procedures and standards.
  10. Perform other duties as assigned.
QualificationsRequired Education, Training and Experience
  • High School Diploma, GED or equivalent.
  • 1+ years of experience in a shipping and/or receiving environment and/or data entry experience. Knowledge of materials management and inventory accuracy principles.
Preferred Education, Training and Experience
  • 2+ years of experience in a shipping and/or receiving environment and/or data entry experience. Knowledge of materials management and inventory accuracy principles.
  • Truck driving experience preferred.
Knowledge, Skills, and Abilities (KSAs)
  • Consistently upholds and reflects the core ethical principles and values that bioMerieux promotes.
  • Ability to work cross-functionally allowing for better collaboration and communication when working across teams to achieve shared objectives
  • Maintain composure by having the skill of staying calm, focused, and professional in high-pressure or stressful situations.
  • Organizing work and resources efficiently to ensure smooth operations
  • Detail orientation to complete tasks without errors and produce high-quality work.
  • Emotional intelligence by having the ability to recognize, understand, and manage one's own emotions, as well as the emotions of others.
  • Skilled in MS Office tools to include but not limited to Outlook, Teams, Word, and Excel - Basic: demonstrates fundamental awareness and can perform routine tasks with guidance
  • Knowledge of Kaizen and 5S principles.
  • Good close vision and hand dexterity for computer
  • Ability to use material handling equipment such as a floor jack, hand truck, order picker, and forklift.
Working Conditions and Physical Requirements (Summary)
  • Ability to remain in stationary position, either sitting or standing, for prolonged periods.
  • Ability to ascend/descend stairs, ladders, ramps, and the like.
  • Ability to wear PPE correctly most of the day.
  • Ability to operate heavy machinery.
  • Ability to adjust or move objects up to 50 pounds in all directions.
The estimated salary range for this role in the state of Missouri is between $18.50 and $28.20 This role is eligible to receive a variable annual bonus based on company, team, and individual performance per bioMerieux's bonus program. This range may differ from ranges offered for similar positions elsewhere in the country given differences in cost of living. Actual compensation within this range is determined based on the successful candidate's experience and will be presented in writing at the time of the offer. In addition, bioMerieux offers a competitive Total Rewards package that may include: *A choice of medical (including prescription), dental, and vision plans providing nationwide coverage and telemedicine options *Company-Provided Life and Accidental Death Insurance *Short and Long-Term Disability Insurance *Retirement Plan including a generous non-discretionary employer contribution and employer match. *Adoption Assistance *Wellness Programs *Employee Assistance Program *Commuter Benefits *Various voluntary benefit offerings *Discount programs *Parental leaves #biojobs

Please be aware that recruitment related scams are on the rise. Fraudulent job postings are being placed on other websites, and individuals posing as bioMerieux Talent Acquisition team members are reaching out via email or text message in an attempt to collect your personal and confidential information. In some cases, these scammers are also conducting bogus interviews prior to extending fraudulent offers of employment. Beware of individuals reaching out using general phone numbers and non-bioMerieux email domains (i.e. Hotmail.com, Gmail.com, Yahoo.com, etc.). If you are concerned that an interview experience or offer of employment might be a scam, please make sure you are searching for the posting on our careers site https://careers.biomerieux.com/ or contact us at [emailprotected].
BioMerieux Inc. and its affiliates are Equal Opportunity/Affirmative Action Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information. Please be advised that the receipt of satisfactory responses to reference requests and the provision of satisfactory proof of an applicant's identity and legal authorization to work in the United States are required of all new hires. Any misrepresentation, falsification, or material omission may result in the failure to receive an offer, the retraction of an offer, or if already hired, dismissal. If you are a qualified individual with a disability, you may request a reasonable accommodation in BioMerieux's or its affiliates' application process by contacting us via telephone at (385) 770-1132, by email at [emailprotected], or by dialing 711 for access to Telecommunications Relay Services (TRS).