Scientist - Microbiology

The Microbiologist is responsible for performing microbiological testing accurately, on time, and in compliance with established methods, aseptic practices, and regulatory requirements. The role works across the microbiology workflow - from sample preparation through plating, incubation, reading, and data entry - and contributes to media production, instrument upkeep, and a clean, compliant lab.

Reporting to the Supervisor
- Microbiology, the Microbiologist executes routine and more complex microbial testing, prepares media and samples, operates and maintains instrumentation, and records results with strong documentation discipline. This is a hands-on bench role that keeps the workflow moving while upholding the aseptic discipline and timing precision that microbiological testing demands.

We are looking for someone technically capable and detail-oriented - a careful, process-disciplined bench scientist who executes accurately, communicates issues early, supports continuous improvement, and helps develop less-experienced team members.

• Perform sample preparation - homogenization, weighing, and documentation of sample weights - for microbial analysis, following SOPs.
• Prepare media, broths, and agars; perform serial dilutions, inoculate samples, and incubate per method requirements.
• Read and record plating results, count colonies (manually and via plate reader), and calculate CFU/ g.
• Support qPCR/PCR testing preparation and execution.

Organize, label, and store samples; prioritize preparation and retests based on testing schedules and deadlines.

• Operate laminar flow hoods, plate readers, incubators, PCR instruments, and related equipment.
• Perform routine maintenance, cleaning, calibration, and diagnostics; record on bench sheets and incubation logs.

Monitor instrument performance during runs, perform basic troubleshooting, and elevate issues as needed.

• Enter and track sample data in the LIMS accurately and on time; upload data and confirm retest needs with Data Review.
• Examine blanks and controls for contamination; spot-check calculations for accuracy and data integrity.

Record retests in the retest log and communicate sample delays to the Supervisor and Client Services.

• Support the implementation, optimization, and validation of plating and microbial methods under the direction of the Supervisor.

Contribute to process improvements and testing efficiency.

• Maintain a clean, sanitary, aseptic workstation; complete daily and weekly cleaning tasks; dump samples and support disposal efforts.

Uphold environmental controls and contamination-prevention practices.

Monitor and audit stock levels of reagents, consumables, and instrument parts; perform and record routine pipette and dispensette checks; flag discrepancies to the Inventory team.

• Work closely with the Supervisor and team, and mentor and support less-experienced microbiologists.

Perform additional duties as the role evolves or as directed by the Supervisor
- Microbiology or laboratory management.

#LI-CB1

• B.S. in Microbiology, Biology, Medical Laboratory Science, or a closely related science discipline; or equivalent combination of education and relevant laboratory experience.
• Experience with, or strong foundational knowledge of, microbiological testing techniques - aseptic technique, media preparation, plating, serial dilutions, and incubation.
• Familiarity with SOP-driven workflows, LIMS systems, and good laboratory practices (GLP).
• Strong attention to detail, organization, and documentation discipline.
• Ability to manage time-sensitive workflows and meet turnaround targets.

Strong written and verbal communication skills.

• Experience in a contract laboratory or regulated testing environment (dietary supplements, food and beverage, cosmetics, or pharmaceutical).
• Familiarity with compendial microbiological methods (USP , , , , AOAC, BAM, ISO, or equivalent).
• Experience with qPCR/PCR methods and plate-reader…