Microbiologist

We are seeking an entry-level Microbiologist to support microbiological testing of water and wastewater samples. This hands‑on laboratory role is ideal for someone with foundational experience in water testing, strong attention to detail, and a commitment to accurate, reliable results. The successful candidate will perform testing using established laboratory procedures and applicable EPA-approved methods, including Standard Methods for the Examination of Water and Wastewater. Responsibilities Perform microbiological testing of drinking water, wastewater, and other environmental water samples. Analyze samples for total coliforms, fecal coliforms, and E. coli using applicable methods. Conduct Most Probable Number (MPN) testing, including multiple-tube fermentation and interpretation of results. Perform biochemical oxygen demand (BOD) testing and related sample preparation and measurements. Prepare media, reagents, dilutions, and laboratory supplies. Receive and process samples, verify sample condition and holding times, and maintain chain-of-custody records. Follow established quality assurance and quality control procedures, including the use of blanks, controls, and reference materials. Maintain accurate laboratory records and enter results into a laboratory information management system (LIMS). Operate, clean, and maintain laboratory equipment, including incubators, autoclaves, pipettes, pH meters, and dissolved oxygen meters. Follow laboratory safety, aseptic technique, waste disposal, and contamination prevention procedures. Identify and report unusual results, procedural deviations, and equipment issues to the laboratory supervisor. Qualifications Bachelor's degree in Microbiology, Biology, Environmental Science, or a related scientific discipline, or an equivalent combination of education and relevant laboratory experience. Foundational hands‑on experience with water or wastewater testing through employment, internships, or academic laboratory work. Familiarity with coliform testing, MPN calculations, multiple-tube fermentation, and BOD analysis. Basic understanding of EPA-approved methods, Standard Methods, and laboratory quality control practices. Ability to follow written procedures, perform basic laboratory calculations, and document work accurately. Strong organizational skills and the ability to manage samples with time‑sensitive testing requirements. Preferred Experience Experience in an environmental testing or water quality laboratory. Familiarity with membrane filtration, defined‑substrate coliform testing, and confirmatory testing. Experience working with LIMS and chain-of-custody documentation. Understanding of sample preservation, holding times, media preparation, and sterilization procedures. Experience Level: Entry level; approximately 0-2 years of relevant experience. Academic laboratory experience and internships will be considered. #J-18808-Ljbffr