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Negative Certifying Scientist Jobs (NOW HIRING)

Labcorp

Certifying Scientist

Houston, TX

Negative specimens * Negative and Dilute * Rejected Specimens * Positive Drugs * Invalid ... Certifying Scientist and Toxicology experience * In lieu of education requirements listed above ...

New

TAE

Sr Scientist - Neutral Beams

Foothill Ranch, CA · On-site

$94K - $129K/yr

Negative ions sources * Excellent analytical and data analysis skills. * Experience in ion beams ... certifications, and other business and organizational needs. The total compensation package for ...

J.S. Held LLC

Environmental Scientist I

Hoboken, NJ

$65K - $80K/yr

... to ensure the ability to wear negative pressure air purifying respirators and impermeable ... OSHA 40 HAZWOPER Certified Physical and Mental Job Qualifications: * Most duties performed on feet.

J.S. Held LLC

Environmental Scientist I

Hoboken, NJ · On-site

$65K - $80K/yr

... to ensure the ability to wear negative pressure air purifying respirators and impermeable ... OSHA 40 HAZWOPER Certified Physical and Mental Job Qualifications: * Most duties performed on feet.

J.S. Held LLC

Environmental Scientist I

Hoboken, NJ · On-site

$65K - $80K/yr

... to ensure the ability to wear negative pressure air purifying respirators and impermeable ... OSHA 40 HAZWOPER Certified Physical and Mental Job Qualifications: * Most duties performed on feet.

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How much do negative certifying scientist jobs pay per year?

As of Jun 8, 2026, the average yearly pay for negative certifying scientist in the United States is $94,420.00, according to ZipRecruiter salary data. Most workers in this role earn between $59,000.00 and $119,000.00 per year, depending on experience, location, and employer.

What jobs are least likely to drug test?

Jobs for Negative Certifying Scientists typically require drug testing due to safety and regulatory standards, especially in laboratories or regulated environments. However, some entry-level or freelance positions in fields like research or consulting may have less frequent or no drug testing, depending on the employer's policies. It is important to verify specific company policies before applying.

What are some common challenges faced by a Negative Certifying Scientist in a toxicology laboratory setting?

Negative Certifying Scientists often face the challenge of maintaining high accuracy and consistency while reviewing large volumes of test results, as even minor errors can have significant consequences. They must stay current with evolving regulations and laboratory protocols to ensure all negative results are certified according to industry standards. Additionally, effective communication with laboratory staff and other certifying scientists is crucial for resolving discrepancies and ensuring quality control. Adapting to new technologies and balancing efficiency with meticulous attention to detail are also ongoing aspects of the role.

What are the key skills and qualifications needed to thrive as a Negative Certifying Scientist, and why are they important?

To thrive as a Negative Certifying Scientist, you need a solid background in forensic science or chemistry, with a relevant bachelor's degree and laboratory experience. Familiarity with laboratory information management systems (LIMS), analytical instruments like GC/MS or LC/MS, and certifications such as ASCLD/LAB are typically required. Strong attention to detail, critical thinking, and effective written communication are standout soft skills for this position. These skills and qualifications ensure accurate, reliable analysis and reporting, which are crucial for maintaining the integrity of forensic laboratory results.

What is a Negative Certifying Scientist?

A Negative Certifying Scientist is a professional who works in forensic laboratories, primarily responsible for certifying and verifying negative results in drug testing or toxicology screening processes. Their role involves reviewing laboratory data, ensuring that no controlled substances or target analytes were detected in tested samples, and confirming that proper procedures were followed. They must maintain rigorous documentation standards and comply with regulatory guidelines to ensure the integrity of test results. Negative Certifying Scientists play a crucial role in upholding the accuracy and reliability of forensic laboratory findings.
More about Negative Certifying Scientist jobs
What job categories do people searching Negative Certifying Scientist jobs look for? The top searched job categories for Negative Certifying Scientist jobs are:
Infographic showing various Negative Certifying Scientist job openings in the United States as of May 2026, with employment types broken down into 1% As Needed, 94% Full Time, and 5% Part Time. Highlights an 94% Physical, 1% Hybrid, and 5% Remote job distribution, with an average salary of $94,420 per year, or $45.4 per hour.
Certifying Scientist

Certifying Scientist

Labcorp

Houston, TX

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 2 days ago

Labcorp rating

6.6

Company rating: 6.6 out of 10

Based on 1,090 frontline employees who took The Breakroom Quiz

77th of 103 rated laboratories

Job description

Labcorp is seeking a Certifying Scientist to join our team in Houston, TX.

Work Schedule: Wednesday - Sunday, 2:00pm - 10:30pm, some overtime required

Shift: 2nd, this position is eligible for a shift differential

Key Responsibilities:

  • Perform GC/MS and LC/MS certification in accordance with Standard Operating Procedures (SOP) and supervisor guidance.

  • Review and interpret all data from screening, SVTs and confirmatory GC/MS and LC/MS chromatographic data and all associated quality control, calibration and instrument data.

  • Understand and follow quality procedures and protocols for security and confidentiality.

  • Review and follow chain of custody procedures with accuracy and consistency. Verify accuracy of all chain of custody and specimen documentation and sign where necessary.

  • Release all results for:

    • Negative specimens

    • Negative and Dilute

    • Rejected Specimens

    • Positive Drugs

    • Invalid

    • Adulterated

    • Substituted

    • Positive and Dilute

    • Retests

    • Quantitative Results

    • D & L methamphetamine results

  • Understand and follow Standard Operating Procedures and protocols as directed.

  • Understand and comply with all laboratory and safety policies.

  • Additional duties as assigned by supervisor

Minimum Qualifications

  • Ph.D. in Chemical or Biological Science OR Master's degree in Chemical or Biological Science, Clinical Laboratory Science, or Medical Technology with 1 year or more of clinical testing OR Bachelor's degree in Chemical or Biological Science, Clinical Laboratory Science, or Medical Technology with 2 years or more of clinical testing experience

Preferred Qualification

  • Current or prior Labcorp experience
  • 3 months or more of Certifying Scientist or Toxicology experience
  • 6 months or more chromatography and/or mass spectrometry experience

Additional Job Standards

  • Certifying Scientist and Toxicology experience
  • In lieu of education requirements listed above, non-traditional degrees with applicable science credits that meet CLIA standards may meet education requirements
  • Qualify as an NLCP Certifying Scientist in an appropriate time frame
  • Understanding of laboratory operations as well as policies and procedures
  • Experience working in a high volume laboratory environment
  • Ability to work independently and within a team environment
  • Excellent research and problem resolution skills
  • Ability to prioritize and manage multiple tasks at a given time
  • Proficient with computers; Familiarity with laboratory information systems
  • High level of attention to detail along with strong communication and organizational skills
  • Ability to handle the physical requirements of the position
  • Able to pass a standardized color blindness test
  • Flexibility to work overtime or other shifts depending on business needs

$5,000 Sign On Bonus (active Labcorp employees not eligible)

At Labcorp we have a passion in helping people live happy and healthy lives. Every day we provide vital information that helps our clients and patients understand their health. If you are passionate about helping people and have a drive for service, then Labcorp could be a great next career step!

Benefits: Employees regularly scheduled to work 20 or more hours per week are eligible for comprehensive benefits including: Medical, Dental, Vision, Life, STD/LTD, 401(k), Paid Time Off (PTO) or Flexible Time Off (FTO), Tuition Reimbursement and Employee Stock Purchase Plan.Employees regularly scheduled to work less than 20 hours, Casual, Intern, and Temporary employees are only eligible to participate in the 401(k) Plan.Employees who are regularly scheduled toworka 7 on/7 off schedule are eligible to receive all the foregoing benefits except PTO or FTO. For more detailed information, please click here.

Labcorp is proud to be an Equal Opportunity Employer:

Labcorp strives for inclusion and belonging in the workforce and does not tolerate harassment or discrimination of any kind. We make employment decisions based on the needs of our business and the qualifications and merit of the individual. Qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), family or parental status, marital, civil union or domestic partnership status, sexual orientation, gender identity, gender expression, personal appearance, age, veteran status, disability, genetic information, or any other legally protected characteristic. Additionally, all qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable law.

We encourage all to apply

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