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Sr. Manufacturing Operator

Avantor
United States, Missouri, St. Louis
Aug 16, 2025
The Opportunity:
Under moderate supervision, assemble mechanical units or fabricated parts to make sub-assemblies or complete products within routine and repetitive assembly operations. Use various hand and power tools and operating equipment which may include jigs, dies, fixtures, templates, punch presses, riveting machines, circular shears, and drill presses to cut, file, fit, punch, ream, rivet, form, and/or assemble. Fit, align, calibrate, and adjust parts and mechanisms to meet tolerances and product requirements. Monitor the quality of products and raw materials. May read simple blueprints. Perform simple routine maintenance and cleaning. Determine and corrects minor machine malfunctions. May train less experienced peers.

The position is full-time, onsite, overnight schedule: 12-hour shift, 6:00pm - 6:00am Sunday - Tuesday, with every other Saturday.

What we're looking for

  • Education: High School education or GED required.
  • Experience: 1 - 3 years of related experience in a manufacturing facility, preferably a cGMP chemical/pharmaceutical facility.

Who you are:

  • Demonstrated mechanical ability.
  • Strong organizational, prioritization, and problem analysis skills.
  • Strong interpersonal communication skills including the ability to read, write, speak and understand the English language.
  • Strong basic math skills (addition, subtraction, multiplication and division).
  • Critical decision-making skills, creativity, multi-tasking ability
  • Good documentation skills.
  • *Basic troubleshooting.
  • Organizational relationships / Scope: Reports to production supervisor.

How you will thrive and create an impact:

  • Ability to perform the duties of both a packaging operator and manufacturing operator.
  • Comply with all cGMP, good documentation, and site safety requirements.
  • Weigh, measure and stage raw materials per specific formulations for production process.
  • Maintain batch records and logbooks.
  • Report deviations to supervision.
  • Clean equipment and utensils are used in the production process.
  • Run required tests on production products; pH, Conductivity, LOD, UV etc.
  • Follow all clean rooms and PPE protocols.
  • *Operate production equipment; reactors, centrifuges, dryers, agitators, pumps, scales, temperature and room pressure controls, gauges etc...
  • Maintain inventory sheets.
  • Pack final product for shipment; verify labels, secure product, verify counts.
  • Adhere to all safety precautions and PPE (personal protection equipment) requirements while completing the assigned duties in a safe manner.
  • Strict adherence to EHS protocols.
  • Manage hazardous and universal waste according to local, state and federal regulations.
  • Conduct daily peer reviews on documentation.
  • Perform other duties as assigned with or without accommodation.

Disclaimer:
The above statements are intended to describe the general nature and level of work being performed by employees assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties and skills required of employees assigned to this position. Avantor is proud to be an equal opportunity employer.

Why Avantor?

Dare to go further in your career. Join our global team of 14,000+ associates whose passion for discovery and determination to overcome challenges relentlessly advances life-changing science.

The work we do changes people's lives for the better. It brings new patient treatments and therapies to market, giving a cancer survivor the chance to walk his daughter down the aisle. It enables medical devices that help a little boy hear his mom's voice for the first time. Outcomes such as these create unlimited opportunities for you to contribute your talents, learn new skills and grow your career at Avantor.

We are committed to helping you on this journey through our diverse, equitable and inclusive culture which includes learning experiences to support your career growth and success. At Avantor, dare to go further and see how the impact of your contributions set science in motion to create a better world. Apply today!

EEO Statement:

We are an Equal Employment/Affirmative Action employer and VEVRAA Federal Contractor. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state/province, or local law.

If you need a reasonable accommodation for any part of the employment process, please contact us by email at recruiting@avantorsciences.comand let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. Please note that only inquiries concerning a request for reasonable accommodation will be responded to from this email address.

For more information about equal employment opportunity protections, please view the Know Your Rights poster.

3rd Party Non-Solicitation Policy:

By submitting candidates without having been formally assigned on and contracted for a specific job requisition by Avantor, or by failing to comply with the Avantor recruitment process, you forfeit any fee on the submitted candidates, regardless of your usual terms and conditions. Avantor works with a preferred supplier list and will take the initiative to engage with recruitment agencies based on its needs and will not be accepting any form of solicitation.

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