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

Associate Scientist

Hazelwood, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Associate Scientist provides applied technical input and support for developing application methods for Pivot Bio crop nutrition technologies across corn, cotton, sorghum, wheat, and soybean.

Associate Scientist

Hazelwood, MO · On-site

$80K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The Associate Scientist provides applied technical input and support for developing application methods for Pivot Bio crop nutrition technologies across corn, cotton, sorghum, wheat, and soybean.

Associate Staff Scientist

Hazelwood, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Description Associate Staff Scientist The Associate Staff Scientist, Sensor Chemistry is an experienced technical contributor responsible for designing, executing, and analyzing complex experiments ...

Associate Staff Scientist

Hazelwood, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Description Associate Staff Scientist The Associate Staff Scientist, Sensor Chemistry is an experienced technical contributor responsible for designing, executing, and analyzing complex experiments ...

Associate Staff Scientist

Hazelwood, MO

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Associate Staff Scientist The Associate Staff Scientist, Sensor Chemistry is an experienced technical contributor responsible for designing, executing, and analyzing complex experiments that support ...

Associate Engineering Data Scientist

Hazelwood, MO · On-site

$55K - $56K/yr

  • Medical

  • Life

  • Retirement

Associate Engineering Data Scientist Company: The Boeing Company Boeing Defense, Space & Security (BDS) is hiring an Associate Engineering Data Scientist for a Proprietary Program in Saint Louis, MO

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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 Aug 14, 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.

Is an associate scientist entry level?

An associate scientist position is often considered an entry-level or early-career role in research and development, typically requiring a bachelor's or master's degree in a relevant field. It involves performing experiments, data analysis, and supporting scientific projects, with opportunities for skill development and advancement. However, some organizations may require prior experience or specific technical skills depending on the complexity of the work.

What degree do you need to be an associate scientist?

An associate scientist typically needs at least a bachelor's degree in a relevant field such as biology, chemistry, or related sciences. Some positions may require a master's degree or higher, along with laboratory skills and experience with scientific tools and techniques.

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 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 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.

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 popular job titles related to Associate Scientist jobs in O'Fallon, IL?

For Associate Scientist jobs in O'Fallon, IL, the most frequently searched job titles are:

What cities near O'Fallon, IL are hiring for Associate Scientist jobs?

Cities near O'Fallon, IL with the most Associate Scientist job openings:

Infographic showing various Associate Scientist job openings in O'Fallon, IL as of August 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.

Full-time

Posted 16 days ago


Alcami rating

7.8

Company rating: 7.8 out of 10

Based on 9 frontline employees who took The Breakroom Quiz


Job description

At Alcami, we deliver reliable solutions that unlock the potential of transformative medicines from discovery to commercialization, through trusted partnership with our clients, recognized industry expertise and proven regulatory track record.

Are you interested in joining our team?


The Associate Scientist is accountable for driving results in a fast-paced environment by performing analytical routine and non-routine testing in support of pharmaceutical product development or pharmaceutical manufacturing. The Associate Scientist may also assist with method development/method validation projects. For this position, UV-Vis, FTIR, HPLC, GC, Titration, and/or AA based methodologies are commonly employed in the described testing.


  • 100% on-site position.
  • 1st Shift: Monday - Friday, 8:00am - 4:30pm.

  • Performs one or more of the following techniques: residual solvents, assays (potencies, related substances), dissolution, elemental impurities, moisture content, identification, and other various analytical techniques.
  • Maintains working knowledge of routine instrumentation, equipment, and scientific methodologies necessary to perform assigned tasks.
  • Performs assigned tasks carefully and on schedule according to standard operating procedure and supervisor instructions.
  • Analyzes information for technical correctness and accuracy.
  • Complies with applicable GMPs, peer checks information and signs for GMP review. Brings aberrant information to the attention of supervisor.
  • Maintains a safe, clean, and organized work environment free of safety hazards.
  • Suggests improvements for safety, work quality, and productivity.
  • Ensures timely completion and compliance with cGMP and all other relevant company training requirements.
  • Seeks to cultivate mentorship, build leadership skills, and foster a culture of ‘team first’.
  • Other duties as assigned.

  • Bachelor’s degree in chemistry or a related field.
  • 0 - 4+ years of related work experience.
  • Prior laboratory experience or work experience in Pharmaceutical, CDMO, or cGMP preferred.

  • Excellent verbal and written communication and documentation skills required.
  • Excellent detail orientation and organizational skills required.
  • Excellent problem-solving and basic trouble-shooting ability required.
  • Basic knowledge of Laboratory equipment and safety required.
  • Basic knowledge of Laboratory Documentation is required.
  • Working knowledge of cGMP in a pharmaceutical or regulated environment preferred.
  • Proficiency with Microsoft Office (Word, Excel, PowerPoint) required.
  • Applies job skills, company policies and SOPs to complete a variety of tasks.
  • Receives general instructions on routine work, detailed instructions on new projects or assignments.

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to use hands to finger, handle, or feel; reach with hands and arms; talk or hear and smell. The employee is frequently required to stand. The employee is occasionally required to walk; sit and stoop, kneel, crouch, or crawl. The employee must regularly lift and/or move up to 10 pounds, frequently lift and/or move up to 25 pounds and occasionally lift and/or move up to 50 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus.

While performing the duties of this job, the employee is frequently exposed to moving mechanical parts and the risk of electrical shock, burn hazards and microbial contamination. The employee is occasionally exposed to fumes or airborne particles, toxic or caustic chemicals and vibration. The noise level in the work environment is usually moderate. The employee will be required to wear the appropriate personal protective equipment for specific job duties to be performed. Such personal protective equipment may include, but not limited to safety eyewear, various types of respirators/breathing apparatus, lab coats, full protective body coverings, various types of gloves, etc.


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