Summary About the Position: This is a Direct Hire Authority (DHA) solicitation utilizing the DHA for STEM Positions and Cyber Security and related positions' to recruit and appoint qualified candidates to positions in the competitive service. Incumbent serves as a Incumbent serves as a Quality Assurance Chemist and Positive Laboratory Certifying Official/Certifying Scientist (PLCO/CS) assigned to the Quality Assurance Section, Forensic Toxicology Drug Testing Laboratory (FTDTL), Fort Meade, Maryland. Responsibilities Conduct and analyze scientific testing performed by lower graded scientists and providing scientific validation of results. Interpret the chromatography and quantitative confirmation results from the highly specific analytical instrumentation in relation to testing human urine aliquots for selected drugs of abuse or drug metabolites. Ensure compliance with Federal Law and established laboratory quality control and quality assurance criteria and ascertain the identity and a...