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Associate Scientist Jobs in O Fallon, IL (NOW HIRING)

bioMerieux

Associate Staff Scientist

Hazelwood, MO · Hybrid

$92K - $135K/yr

Associate Staff Scientist Department: R&D Microbiology Position Summary Contributes, with technical and scientific expertise to the design and development of high-quality products on time, within ...

bioMerieux Inc.

Associate Staff Scientist

Hazelwood, MO · Hybrid

$92K - $135K/yr

Associate Staff Scientist Department: R&D Microbiology Position Summary Contributes, with technical and scientific expertise to the design and development of high-quality products on time, within ...

bioMérieux

Associate Staff Scientist

Hazelwood, MO · On-site

$92K - $135K/yr

Associate Staff Scientist Department: R&D Microbiology Position Summary Contributes, with technical and scientific expertise to the design and development of high-quality products on time, within ...

Biomerieux

Associate Staff Scientist

Hazelwood, MO · On-site

$92K - $135K/yr

Associate Staff Scientist Department: R&D Microbiology Position Summary Contributes, with technical and scientific expertise to the design and development of high-quality products on time, within ...

Post Holdings Inc.

Associate Data Scientist II

Saint Louis, MO · On-site

$55.20K - $55.70K/yr

Responsibilities The Associate Data Scientist will primarily focus on data science project execution, using Python, Tableau, Azure ML and SQL to solve challenging problems like forecasting and ...

Biomerieux

Associate Director, Data Science

Hazelwood, MO · On-site

$150K - $214K/yr

Description Local Position Summary "The Associate Director, Data Science serves as a key technical and strategic leader responsible for developing and advancing the statistical, mathematical, and ...

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Associate Scientist information

See O Fallon, IL salary details

$17

$33

$53

How much do associate scientist jobs pay per hour?

As of May 28, 2026, the average hourly pay for associate scientist in O'Fallon, IL is $33.51, according to ZipRecruiter salary data. Most workers in this role earn between $26.01 and $38.12 per hour, depending on experience, location, and employer.

What Is an Associate Scientist?

An associate scientist takes on more responsibilities than an assistant scientist, supporting research and each experiment under the lead scientist, often in a laboratory environment. As an associate scientist, there are many industries you can work in, including the research field where the lead scientist oversees your project, and you help author papers. Many pharmaceutical companies hire associate scientists to analyze samples to develop drugs and assist with preclinical and clinical studies. Private companies need you to produce specialty chemicals for their clients. Materials scientists at the associate level conduct research and test the properties of metals, plastics, and other materials for their use in new products and packaging. Some positions have duties that include training other team members and overseeing students and fellows.

What are the key skills and qualifications needed to thrive as an Associate Scientist, and why are they important?

To thrive as an Associate Scientist, you generally need a bachelor’s or master’s degree in a relevant scientific field, along with strong analytical and laboratory skills. Familiarity with laboratory information management systems (LIMS), data analysis software, and standard operating procedures (SOPs) is often required. Attention to detail, problem-solving abilities, and effective teamwork are vital soft skills that distinguish top performers. These skills ensure accurate data collection, reliable experimental outcomes, and productive collaboration within research or product development teams.

What are some common challenges an Associate Scientist might face when transitioning from academia to industry?

Associate Scientists moving from academia to industry often encounter challenges such as adapting to a faster-paced environment and focusing on project-driven outcomes rather than open-ended research. In industry, there is a stronger emphasis on teamwork, meeting strict deadlines, and following standardized protocols. Adjusting to these expectations, learning new technologies, and effectively communicating results to cross-functional teams are key areas where new hires may need support.

What does an Associate Scientist do?

An Associate Scientist is a professional who supports research and development projects, typically in fields like biotechnology, pharmaceuticals, or environmental science. They conduct experiments, analyze data, and document results under the supervision of senior scientists. Associate Scientists play a key role in advancing scientific knowledge and product development by performing laboratory tasks, maintaining equipment, and following established protocols. Their work contributes to discoveries, quality control, and regulatory compliance within their organization.

What is the difference between Associate Scientist vs Research Scientist?

AspectAssociate ScientistResearch Scientist
Required CredentialsBachelor's or Master's degree in a relevant field; some roles may require a PhDTypically a Master's or PhD in a related discipline
Work EnvironmentLaboratories, research facilities, industry settingsResearch labs, academic institutions, industry
Employer & Industry UsageBiotech, pharmaceuticals, academia, governmentBiotech, pharmaceuticals, academia, government
Common Search & Comparison IntentUnderstanding entry-level or mid-level research rolesAdvanced research roles, career progression

Associate Scientists and Research Scientists often work in similar environments within biotech, pharma, or academic sectors. The main difference lies in experience and educational requirements, with Research Scientists typically holding higher degrees and engaging in more independent or advanced research. Both roles are essential for scientific progress, but Research Scientists usually have more responsibility and autonomy in their projects.

More about Associate Scientist jobs
What cities near O'Fallon, IL are hiring for Associate Scientist jobs? Cities near O'Fallon, IL with the most Associate Scientist job openings:
Associate Scientist jobs near you
Infographic showing various Associate Scientist job openings in O'Fallon, IL as of May 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $69,702 per year, or $33.5 per hour.
Associate Scientist - Analytical Assay

Associate Scientist - Analytical Assay

Eurofins Scientific

Saint Louis, MO • On-site

Full-time

Medical, Dental, Vision, Life, PTO

Posted 8 days ago

Eurofins rating

7.5

Company rating: 7.5 out of 10

Based on 174 frontline employees who took The Breakroom Quiz

56th of 103 rated laboratories

Job description

Company Description

Eurofins Scientific is an international life sciences company, providing a unique range of analytical testing services to clients across multiple industries, to make life and our environment safer, healthier and more sustainable. From the food you eat, to the water you drink, to the medicines you rely on, Eurofins works with the biggest companies in the world to ensure the products they supply are safe, their ingredients are authentic and labelling is accurate.

Job Description

The position will be providing analytical support to biotherapeutic process development teams, specifically focusing on large molecules (proteins, polysaccharides, nucleic acids, etc.).

Candidates will work in a large diverse team, helping with advancing cutting edge pharmaceutical research. Some to the techniques that our future team members will need to be familiar with are:

  • Ultraviolet and visual light spectroscopy (UV-Vis)
  • Analytical chromatographic separations (HPLC)
  • Small-volume multichannel pipetting skills and plate-based assays
  • pH Appearance
  • Gels, SDS Page, AGE, experience with gel-based assay
Qualifications

Minimum Qualifications:

Authorization to work in the United States indefinitely without restriction or sponsorship

  • Experience with the following techniques; 
    • UV-VIS
    • HPLC, SEC
    • Western Blotting 
    • SOLO VPE, pH Appearance
    • SDS Page AGE, CGE, experience with gel-based assay

Bachelors or Masters Degree in Biological or Chemical Science.

Candidates within a commutable distance of Chesterfield, MO are encouraged to apply

  • Preferred experience: 
    • Experience with protein immunoblotting technology and attention to detail. Ability to operate independently after receiving direction
    • Electronic laboratory notebook systems and/or GMP documentation practice
    • Empower or OpenLabs Software
Additional Information

Position is full-time, Monday to Friday 8:00am - 5:00pm. Candidates currently living within a commutable distance of Chesterfield, MO are encouraged to apply.

What we offer:

Comprehensive medical coverage, with dental and vision options

Life and disability insurance

Paid holidays and vacation.

Eurofins USA PSS Insourcing Solutions is a Disabled and Veteran Equal Employment Opportunity employer.

What Eurofins employees say

Pay

Benefits

Hours and flexibility

Workplace

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