Merck KGaA Posted October 6, 2026

Associate Quality Scientist - 2nd shift

St. Louis, Missouri, United States Full time
Quality Associate
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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

As an Associate Quality Scientist on our ADC Stability and Release team, you will safely execute cGMP-compliant analytical testing for drug substance and drug product (DS/DP) release, stability, and specialized customer requests. Reporting to the Second Shift QC Supervisor, this role works 2:00 PM – 10:30 PM in a routinely audited, high-standard laboratory environment. You will actively support regulatory and customer audits, resolve findings, and contribute to continuous improvement initiatives that boost departmental efficiency and exceed quality standards.

Perform timely analytical testing and other activities to support cGMP release, in-process and stability testing of drug substances and drug products

Provide complete and accurate records consistent with quality guidelines and good documentation practice (GDP) requirements

Ensure quality through adherence to GMP requirements

Complete the volume of work required to achieve group/departmental goals, meet deadlines, communicate the status of operations and bring deviations to the attention of the supervisor

Provide complete and accurate records consistent with quality guidelines and GDP requirements

Perform complex assays and processes requiring a higher level of skill and knowledge and identify problems and limitations of the analysis

Perform advanced troubleshooting utilizing technical knowledge and theory

Design basic experiments, evaluate data, and provide logical conclusions and solutions

Contribute to support functions of the lab (e.g. maintain equipment, prepare reagents, restock lab supplies, and waste disposal)

Shift: 2nd shift, 2:00 PM–10:30 PM, Mon – Fri

Physical Attributes:

Additional needs may include the use of personal protective equipment such as a respirator or chemical protective clothing for extended periods of time

Occasional lifting and pushing up to 40 pounds

Who You Are

Minimum Qualifications:

Bachelor’s degree in chemistry, biochemistry, biology or other life science discipline

OR

Associate degree in chemistry, biochemistry, biology, or other life science discipline with 3+ years of analytical testing experience in a cGMP laboratory environment

Preferred Qualifications :

Experience with antibody-drug conjugates (ADCs) and safe chemical handling protocols

Proficiency with lab software and enterprise systems (TrackWise, Chromeleon, LIMS, and SAP)

Strong working knowledge of general laboratory instrumentation, including the ability to troubleshoot equipment and technical assay issues

Deep understanding of ALCOA principles, Good Documentation Practices (GDP), and data integrity standards

Ability to work independently with high accuracy, as well as adapt flexibly within a dynamic team environment

Strong written and verbal communication skills

Pay rate for this position: $23.00 - $37.00 per hr.

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
Quality
Therapeutic area
Not listed
Location
St. Louis, Missouri, United States
Employment type
Full time

How this role compares

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

We currently track 364 comparable Associate Quality roles across 77 biopharma companies.

364Comparable roles tracked
331Currently active
77Companies hiring similar roles
31Countries represented

Salary context

52 of 364 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 Not listed on this posting
Lowest disclosed · Associate Quality Control Analyst (Virology) · Regeneron Pharmaceuticals, Inc (USA) $22/hr – $34/hr (≈ $45,302–$70,699/yr)
Highest disclosed · Senior Manager, Quality Management Systems · Johnson & Johnson $142,000/yr – $244,950/yr
Peer group range $58,001 – $193,475 (median $159,000)

Where these roles are based

Top locations among the 364 comparable roles

United States135
Germany42
France39
China23
Ireland19
India15

+ 25 more countries

Seniority mix

364 of 364 peers have a known seniority level

Manager198
Intern/Fellow/Postdoc94
Associate72

Therapeutic area mix

0 of 364 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

No peers with a known therapeutic area yet.

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
Lilly Lebanon, Indiana, United States of America Associate
Same function Same seniority Same country
60%similar
Merck KGaA Milwaukee, Wisconsin, United States Associate
Same function Same seniority Same country
60%similar
Perrigo Eau Claire, United States Associate
Same function Same seniority Same country
60%similar
CSL Behring L.L.C. Seqirus USA - MA - Waltham, United States Associate
Same function Same seniority Same country
60%similar
Perrigo Eau Claire, United States 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 Quality 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%
Advisor, Physicochemical Properties and Compound Quality
Lilly · Indianapolis, Indiana, United States of America · Associate
Function Therapeutic area Seniority Country
60%
Associate Validation Scientist (Eau Claire, WI, US, 54703)
Perrigo · Eau Claire, United States · Associate
Function Therapeutic area Seniority Country
60%
Associate, QC Analytical Flow Cytometry, B2 Shift
Devens · Devens, United States · Associate
Function Therapeutic area Seniority Country
60%
Associate Scientist, Veterinary Quality Services (Saint Joseph, United States, Missouri)
Boehringer Ingelheim · Saint Joseph, Missouri, 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.