Sr. Associate Scientist – QC Microbiology (Weekend, 3rd Shift)
Job ID: 290966
Location: St. Louis, Missouri, United States
Job Type: Full-time
About Us
Work Your Magic with us! Start your next chapter and join MilliporeSigma.
We are innovators in Healthcare, Life Science, and Electronics. Our global teams push boundaries, dream big, and imagine the unimaginable. If you’re a curious mind who thrives on discovery, this is the opportunity to make an impact.
Note: This role does not offer sponsorship for work authorization. External applicants must be eligible to work in the US.
Your Role
As a Sr. Associate Scientist (QC Microbiology), you will perform and oversee microbiological and analytical testing to support product and process quality.
Key Responsibilities
Conduct analytical and microbiological testing on raw materials, in-process samples, drug substances, and water.
Perform protein concentration analysis using UV/Solo VPE.
Lead technical reviews of assays, develop new methods, and optimize processes.
Document all work in compliance with cGMP and company procedures.
Collaborate with internal teams to improve processes in an ICH Q7 environment.
Support investigations into OOS (Out-of-Specification) and OOT (Out-of-Trend) results.
Assist with root cause analysis and corrective/preventive actions.
Communicate effectively with production and laboratory staff to ensure quality compliance.
Shift Details:
Friday – Monday | 10:00 PM – 8:30 AM
Who You Are
Minimum Qualifications
Bachelor’s degree in Biology, Chemistry, or other Life Science discipline
1+ years of QC laboratory experience
Preferred Qualifications
Current API knowledge
Familiarity with SOPs, cGMPs, GLP, GDP and quality control systems
Experience with endotoxin (USP <85>) and bioburden (USP <61>) testing
Knowledge of analytical methods, including UV/Solo VPE protein analysis
Experience with regulatory standards: ICH Q7, 21CFR210, USP, EP
Proficiency in aseptic techniques and troubleshooting microbiological processes
Strong documentation skills: writing, reviewing, and approving QC-controlled documents
Ability to work independently and manage multiple priorities
Strong problem-solving, time management, and communication skills
Proficiency in MS Word, Excel, PowerPoint, and ability to learn specialized software
Compensation & Benefits
Pay Range: $23.00 – $42.00 per hour
Actual pay based on location, experience, skills, and other factors
May be eligible for performance-based bonuses
Benefits include:
Health insurance
Paid time off (PTO)
Retirement contributions
Additional perks & programs
What We Offer
At MilliporeSigma, we believe diversity of backgrounds and perspectives drives innovation and excellence. We create opportunities for growth and inclusion, empowering everyone to spark discovery and elevate humanity.
Apply Now
Be part of a team dedicated to quality, discovery, and scientific progress.
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