Certifying Scientist

Labcorp is seeking a Certifying Scientist to join its team in Houston, TX. This position will be working in the Toxicology department which performs drug monitoring testing. The Certifying Scientist will be responsible for reviewing and verifying all data to ensure its accuracy before the final results get reported.

Work Schedule: Tuesday - Saturday, 5:00pm - 1:30am, some overtime required

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. Casual, PRN & Part Time employees regularly scheduled to work less than 20 hours are eligible to participate in the 401(k) Plan only. Employees who are regularly scheduled to work a 7 on/7 off schedule are eligible to receive all the foregoing benefits except PTO or FTO. For more detailed information, please click here.

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

Requirements

• Bachelor's degree in Chemistry, Biology, Clinical Laboratory Science or related field or equivalent education and experience
• Master's degree or Ph.D. in a Chemical or Biological Science is a plus
• 2 years of pertinent laboratory experience is required
• Certifying Scientist and Toxicology experience is preferred
• Prior chromatography and/or mass spectrometry experience is preferred
• Excellent communication and interpersonal skills including written, verbal, and listening skills
• Excellent research and problem resolution skills
• Must be able to perform work with a high degree of accuracy and attention to detail
• Work effectively in fast paced high volume environment
• Flexibility to work overtime or other shifts depending on business needs

If you're looking for a career that offers opportunities for growth, continual development, professional challenge and the chance to make a real difference, apply today!

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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Client-provided location(s): Houston, TX

Job ID: labcorp-262717_669562065

Employment Type: OTHER

Posted: 2026-01-30T19:38:52