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Lab Associate Jobs in O Fallon, MO (NOW HIRING)

NASS USA

Oil Lab Technician

Saint Louis, MO

$18 - $25/hr

Overview Oil Lab Technician North American Substation Services (NASS) is a national leader in ... Associate's degree in chemistry, biology, or related field of science. * Strong skills working with ...

High Priority Plumbing

Oil Lab Technician

Saint Louis, MO · On-site

$18 - $25/hr

Overview Oil Lab Technician North American Substation Services (NASS) is a national leader in ... Associate's degree in chemistry, biology, or related field of science. * Strong skills working with ...

High Priority Plumbing

Oil Lab Technician

Saint Louis, MO · On-site

$18 - $25/hr

Overview Oil Lab Technician North American Substation Services (NASS) is a national leader in ... Associate's degree in chemistry, biology, or related field of science. * Strong skills working with ...

NASS USA

Oil Lab Technician

Saint Louis, MO · On-site

$18 - $25/hr

Overview Oil Lab Technician North American Substation Services (NASS) is a national leader in ... Associate's degree in chemistry, biology, or related field of science. * Strong skills working with ...

BJC HealthCare

MLT II - Core Lab

Saint Louis, MO · On-site

Associate's degree in a physical, life science, or related field * MLT-ASCP, MLS-ASCP or equivalent ... Preferred Qualifications Role Purpose The Medical Lab Technician (MLT) II (REG) performs specimen ...

SSM Health

Clinical Lab Scientist

Saint Louis, MO · On-site

Associate's degree or equivalent years of experience and education EXPERIENCE * No experience ... Medical Lab Personnel - Department of Health and Human Services Nevada Division of Public and ...

BJC

MLT II - Core Lab

Saint Louis, MO · On-site

... lab locations) Minimum Requirement ... Associate's degree in a physical, life science, or related field * MLT-ASCP, MLS-ASCP or equivalent ...

BJC HealthCare

MLT II - Core Lab

Saint Louis, MO · On-site

$24.71 - $41.03/hr

Associate's degree in a physical, life science, or related field * MLT-ASCP, MLS-ASCP or equivalent ... Preferred Qualifications Role Purpose The Medical Lab Technician (MLT) II (REG) performs specimen ...

SSM Health

Clinical Lab Scientist

Saint Louis, MO · On-site

Associate's degree or equivalent years of experience and education EXPERIENCE * No experience ... Medical Lab Personnel - Department of Health and Human Services Nevada Division of Public and ...

SSM Health

Clinical Lab Scientist

Saint Louis, MO · On-site

Associate's degree or equivalent years of experience and education EXPERIENCE * No experience ... Medical Lab Personnel - Department of Health and Human Services Nevada Division of Public and ...

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All JobsLab Associate JobsLab Associate Jobs in O Fallon, MO

Lab Associate information

See O Fallon, MO salary details

$11

$20

$31

How much do lab associate jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for lab associate in O Fallon, MO is $20.93, according to ZipRecruiter salary data. Most workers in this role earn between $15.96 and $23.37 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a lab associate?

To thrive as a Lab Associate, you need a solid understanding of laboratory procedures, attention to detail, and typically a degree in a science-related field. Familiarity with laboratory information management systems (LIMS), standard lab equipment, and relevant safety certifications is often required. Strong organizational skills, teamwork, and effective communication set outstanding candidates apart in this role. These skills ensure accurate data collection, safe lab practices, and efficient support for scientific research or clinical testing.

What is a lab associate?

Lab Associates are professionals who assist in the daily operations of laboratories by performing tasks such as preparing samples, conducting basic experiments, maintaining equipment, and recording data. They typically work under the supervision of scientists or lab managers and help ensure that laboratory procedures are followed safely and accurately. Lab Associates play a crucial role in supporting research and development, quality control, or diagnostic testing in fields like healthcare, pharmaceuticals, and academia. Their responsibilities may vary depending on the specific lab setting and industry.

What is the difference between Lab Associate vs Laboratory Technician?

AspectLab AssociateLaboratory Technician
Required CredentialsHigh school diploma or associate degree; certifications varyAssociate degree or relevant certification; similar educational background
Work EnvironmentHospitals, research labs, clinicsMedical labs, research facilities, industrial labs
Job ResponsibilitiesSample collection, data entry, basic testingPerforming tests, maintaining equipment, recording results
Employer & Industry UsageHealthcare, research, biotechMedical, industrial, research sectors

Both Lab Associates and Laboratory Technicians work in similar environments and often share educational requirements. The main difference lies in specific job duties, with Laboratory Technicians typically performing more complex tests and equipment maintenance. Understanding these distinctions can help job seekers identify the right role for their skills and career goals.

What are some typical challenges a lab associate might face during day-to-day work, and how can they be addressed?

Lab Associates often encounter challenges such as managing multiple experiments simultaneously, ensuring precise documentation, and maintaining equipment. Staying organized by keeping detailed lab notes and using lab management software can help streamline workflow. Clear communication with team members and supervisors is vital to address any issues promptly and maintain a safe, efficient laboratory environment. Regularly scheduled equipment checks and proactive troubleshooting also contribute to smoother operations.
What cities near O Fallon, MO are hiring for Lab Associate jobs? Cities near O Fallon, MO with the most Lab Associate job openings:
Lab Associate jobs near you
Infographic showing various Lab Associate job openings in O Fallon, MO as of August 2026, with employment types broken down into 1% As Needed, 69% Full Time, 27% Part Time, 1% Temporary, and 2% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $43,524 per year, or $20.9 per hour.

Oil Lab Technician

NASS USA

Saint Louis, MO

$18 - $25/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 2 days ago

Job description

OverviewOil Lab Technician

North American Substation Services (NASS) is a national leader in transformer services and highvoltage substation installation, maintenance, testing, and repair. With more than 20 years of experience, we deliver comprehensive, onestop solutions for utilities, industrial operations, and critical infrastructure across the United States. Our teams support the full lifecycle of substation and transformer assets, including installation, maintenance, major repairs, and diagnostic testing. 

Core services include transformer assembly, oil processing, regasket and lifeextension work, substation apparatus testing, and highvoltage equipment maintenance to ensure safe, reliable system performance. We work on a wide range of substation equipment-power transformers, breakers, switches, arresters, and control cabinets-and perform essential diagnostics such as TTR, winding resistance, insulation resistance, powerfactor testing, and oil analysis through our dedicated inhouse laboratory. With a nationwide fleet of mobile oilprocessing units, we provide rapid onsite support backed by strong technical expertise, a commitment to safety, and disciplined field execution to keep critical power systems operating reliably and efficiently. 

Benefits 

  • Medical, dental, and vision coverage 
  • 401(k) savings plan with company match 
  • Health Savings Account (HSA) and/or Flexible Spending Account (FSA) 
  • Life and AD&D insurance 
  • Short-term and long-term disability coverage 
  • Employee Assistance Program (EAP) 

Perks 

  • Competitive pay 
  • Talent development through instructor-led and online learning 
  • Career path planning 
  • Incentives for professional certifications 
  • Per diem for travel 
  • Referral bonuses 
  • Tuition reimbursement 

Pay: 

The hourly rate for this position is between $18.00 - $25.00 per hour.Factors which may affect starting pay within this range may include geography/market, skills, education, experience, and other qualifications of the successful candidate.

Job Purpose:

The Oil Lab Technician is responsible for the testing and documentation of transformer insulating fluids in production laboratory environments.Candidate must be detail-oriented, have experience working with chemicals, and be confident working with electronic test instruments in a lab environment.

Responsibilities
  • Receive and document incoming fluid samples from customers.
  • Perform checks and calibrations on laboratory equipment.
  • Test fluid samples to determine their physical, electrical, and chemical properties.
  • Analyze test results to confirm their validity.
  • Perform routine maintenance on test equipment.
  • Wash glassware and sample containers as necessary.
  • Maintain laboratory as a clean and orderly work area
  • Coordinate the distribution of sampling materials to customers.
  • Participate in lab quality programs and improvements.
Qualifications

Required:

  • High School diploma or GED. 
  • Must be able to frequently kneel, bend, stand, crouch, and lift or carry up to 50 pounds to accomplish job tasks.

Preferred:

  • Associate's degree in chemistry, biology, or related field of science.
  • Strong skills working with computers and digital testing equipment, including efficient data entry.
  • Ability to work safely, accurately, and efficiently both independently and as part of a small team.
  • Capable of prioritizing multiple goals to meet deadlines.
  • Professional experience working in a laboratory setting is a plus but not required.

EEO Statement 

NASS, an Asplundh Power Company, is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, veteran status, or any other protected characteristic. NASS does not engage with individual recruiters or third party staffing agencies. Unsolicited resumes will not be accepted. 

  #WEEMPOWERPOSSIBLE

Employment Type: FULL_TIME

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