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Remote Certifying Scientist – Toxicology

Roles & Responsibilities

  • Bachelor’s degree in chemistry, Biochemistry, Medical Technology, or related scientific field.
  • Minimum 2 years of experience operating LC-MS/MS systems in a toxicology or clinical lab.
  • Familiarity with common LC-MS platforms (e.g., Sciex, Shimadzu, Thermo) and associated software.
  • Knowledge of CLIA, CAP, and HIPAA regulations.

Requirements:

  • Certify toxicology results from LC-MS/MS analysis by evaluating chromatographic data, retention times, ion ratios, and quantitation curves.
  • Review QC and calibration performance for each analytical batch, documenting discrepancies and initiating corrective action if necessary.
  • Interpret complex drug testing profiles based on known pharmacokinetics and metabolism, and flag potential inconsistencies or issues.
  • Ensure proper documentation of all reviews, certifying events, and communications in accordance with lab SOPs and regulatory requirements.

Job description

Crossroads Treatment Centers is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Since 2005, Crossroads has been at the forefront of treating patients with opioid use disorder. Crossroads is a family of professionals dedicated to providing the most accessible, highest quality, evidence-based medication assisted treatment (MAT) options to combat the growing opioid epidemic and helping people with opioid use disorder start their path to recovery. This comprehensive approach to treatment, the gold standard in care for opioid use disorder, has been shown to prevent more deaths from overdose and lead to long-term recovery. We are committed to bringing critical services to communities across the U.S. to improve access to treatment for over 26,500 patients. Our clinics are all outpatient and office-based, with clinics in Georgia, Kentucky, New Jersey, North and South Carolina, Pennsylvania, Tennessee, Texas, and Virginia. As an equal opportunity employer, we celebrate diversity and are committed to an inclusive environment for all employees and patients.

Day in the Life of a Certifying Scientist

  • Certify toxicology results from LC-MS/MS analysis by evaluating chromatographic data, retention times, ion ratios, and quantitation curves.

  • Review quality control (QC) and calibration performance for each analytical batch, documenting any discrepancies and initiating corrective action if necessary.

  • Interpret complex drug testing profiles based on known pharmacokinetics and metabolism, and flag potential inconsistencies or issues.

  • Ensure proper documentation of all reviews, certifying events, and any communications in accordance with lab SOPs and regulatory requirements.

  • Collaborate with lab personnel and clinical providers as needed via secure communication channels (email, LIS, video conferencing).

  • Support audit readiness by ensuring data integrity, traceability, and proper documentation practices.

  • Maintain confidentiality and adhere to HIPAA and CLIA regulations at all times.

  • Foster a culture of excellence, teamwork, and continuous improvement among laboratory staff

  • Provide on-site laboratory coverage as needed, with up to 25% travel required.

Education and Experience requirements

  • Bachelor’s degree in chemistry, Biochemistry, Medical Technology, or related scientific field

  • Minimum 2 years of experience operating LC-MS/MS systems in a toxicology or clinical lab

  • Familiarity with common LC-MS platforms (e.g., Sciex, Shimadzu, Thermo) and associated software

  • Strong understanding of drug metabolism, pharmacokinetics, and toxicological principles.

  • Excellent attention to detail and data integrity practices

  • Knowledge of CLIA, CAP, and HIPAA regulations

Travel

Remote but required to travel ~25%.

Benefits Package

  • Medical, Dental, and Vision Insurance

  • PTO

  • Variety of 401K options including a match program with no vesture period

  • Annual Continuing Education Allowance (in related field)

  • Life Insurance

  • Short/Long Term Disability

  • Paid maternity/paternity leave

  • Mental Health day

  • Calm subscription for all employees

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