Merck KGaA Posted October 22, 2026

GMP Associate Production Scientist - Rotating Shift

St. Louis, Missouri, United States FULL_TIME
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Merck KGaA is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

Work Your Magic with us!  Start your next chapter and join MilliporeSigma.

Ready to explore, break barriers, and discover more? We know you’ve got big plans – so do we! Our colleagues across the globe love innovating with science and technology to enrich people’s lives with our solutions in Healthcare, Life Science, and Electronics. Together, we dream big and are passionate about caring for our rich mix of people, customers, patients, and planet. That's why we are always looking for curious minds that see themselves imagining the unimaginable with us.

This role does not offer sponsorship for work authorization. External applicants must be eligible to work in the US.

Your Role:

Join our St. Louis Cherokee facility at MilliporeSigma, a leading contract development and manufacturing organization (CDMO) and a recognized Center of Excellence for antibody-drug conjugate (ADC) manufacturing. We are seeking passionate and enthusiastic professionals to contribute to our innovative bioconjugate production, leveraging over 35 years of expertise in the field. As a vital part of our dedicated team, you will play a key role in delivering high-quality ADCs that improve the quality of life for patients suffering from cancer and other debilitating diseases. With our state-of-the-art technologies and commitment to excellence, you will ensure the highest standards of quality and compliance in our ADC manufacturing processes.

As an Associate Production Scientist – Rotating Shift you will manufacture products according to established protocols under ICH Q7 pharmaceutical regulations, provide technical support to others and perform operations in support of the group and department.

Job Duties Include:

12 hour rotating Day (6:00am - 6:30pm)/ Night (6:00pm - 6:30am) shifts with a 20% shift differential

Evaluate products by established protocols, providing technical support and performing operations to meet departmental goals.

Safely conduct routine processes and unit operations, including cleaning equipment and work areas, while ensuring quality expectations.

Maintain required training and qualifications, train team members, and act as a technical consultant.

Support facility functions by maintaining equipment, preparing reagents, restocking supplies, and managing waste disposal.

Maintain accurate records and logbooks according to quality guidelines, communicating operational status and concerns to supervision.

Collaborate with other departments, participate in quality audits and customer interactions, and perform procedures independently or in a team.

Improve processes using scientific knowledge and principles, ensuring compliance with change control.

Address unsafe conditions promptly and troubleshooting challenges related to biological processes and GMP compliance.

Physical Attributes:

Ability to lift to 50lbs.

Ability to wear personal protective equipment, such as respirator or chemical protective clothing, for extended periods.

Expected on-floor time: (70%)

Who You Are

Minimum Qualifications:

Bachelor’s Degree in scientific discipline (e.g., Chemistry, Biochemistry, Biology, etc.)

OR

Associate Degree in Chemistry, Biochemistry Biology or any other Life Science discipline

2+ years of industry Production/Laboratory experience

RSREMD

Preferred Qualifications:

Experience with Antibody Drug Conjugates (ADCs), including knowledge of their formulation and manufacturing processes.

Experience with Automated Tangential Flow and Automated Chromatography systems.

Familiar with laboratory instruments and production equipment

Familiarity with process techniques, unit operations, and safe chemical handling methods.

Experience with Microsoft Office (Word, Outlook, Excel, etc.).

Mechanical and troubleshooting skills.

Knowledge of cGMP and ICH Regulatory and Quality standards.

Knowledge of Operational Excellence.

Clean room experience

Ability to interact professionally in customer-facing meetings, including challenging discussions on process planning and process execution

RSREMD

Pay Range for this position: $25.00 - $45.00

The offer range represents the anticipated low and high end of the base pay compensation for this position. The actual compensation offered will be determined by factors such as location, level of experience, education, skills, and other job-related factors. Position may be eligible for sales or performance-based bonuses. Benefits offered by the Company include health insurance, paid time off (PTO), retirement contributions, and other perquisites. For more information click here.

What we offer: We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We believe that this variety drives excellence and innovation, strengthening our ability to lead in science and technology. We are committed to creating access and opportunities for all to develop and grow at your own pace. Join us in building a culture of inclusion and belonging that impacts millions and empowers everyone to work their magic and champion human progress!

Apply now and become a part of a team that is dedicated to Sparking Discovery and Elevating Humanity!

Job details

Seniority
Associate
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
St. Louis, Missouri, United States
Employment type
FULL_TIME

How this role compares

Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.

We currently track 715 comparable Associate Manufacturing & CMC roles across 100 biopharma companies.

715Comparable roles tracked
653Currently active
100Companies hiring similar roles
40Countries represented

Salary context

164 of 715 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject $25/hr – $45/hr (≈ $52,000–$93,600/yr)
Lowest disclosed · Warehouse Associate I (M-F 11am-7:30pm) · AbbVie $16/hr – $29/hr (≈ $33,280–$60,320/yr)
Highest disclosed · Advisor, Bioanalytical Chemistry · Lilly $168,000/yr – $268,400/yr
Peer group range $46,800 – $218,200 (median $142,078)

Where these roles are based

Top locations among the 715 comparable roles

United States352
France58
India48
Germany39
Ireland25
Japan22

+ 34 more countries

Seniority mix

715 of 715 peers have a known seniority level

Manager359
Intern/Fellow/Postdoc208
Associate148

Therapeutic area mix

11 of 715 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease7
Rare Disease3
Immunology1

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

60%similar
Lilly Indianapolis, Indiana, United States of America Associate
Same function Same seniority Same country
60%similar
Devens Devens, United States Associate
Same function Same seniority Same country
60%similar
Biogen Research Triangle Park, United States Associate
Same function Same seniority Same country
60%similar
AbbVie Associate
Same function Same seniority Same country

Open in 3 locations

North Chicago, United StatesWorcester, United StatesWaltham, United States
60%similar
Biogen Research Triangle Park, United States Associate
Same function Same seniority Same country
60%similar
Merck Rahway, New Jersey, United States of America Associate
Same function Same seniority Same country

Notify me about similar jobs

Get an email when we spot other openings like this one – same job function, comparable seniority, roles you'd actually want to see.

Or follow a whole field: get every new Manufacturing & CMC job in the United States, and choose locations and companies.

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

60%
Research Advisor, Drug Product - SMDD
Lilly · Indianapolis, Indiana, United States of America · Associate
Function Therapeutic area Seniority Country
60%
Associate Scientific Technical Engineer II, PDS&T CMC
AbbVie · North Chicago, IL · Associate
Function Therapeutic area Seniority Country
60%
Manufacturing Associate IV, OSM/OPM (ASO) (Days)
Biogen · Research Triangle Park, United States · Associate
Function Therapeutic area Seniority Country
60%
Manufacturing Associate I - Nights (Covington, OH, US, 45318)
Perrigo · Covington, United States · Associate
Function Therapeutic area Seniority Country
Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.