Scientist I - 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.

1. Sample Preparation & Microbial Testing 

• 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. 

2. Instrument Operation & Maintenance 

• 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 escalate issues as needed. 

3. Data Processing & Documentation 

• 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. 

4. Method Support & Continuous Improvement 

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

• Contribute to process improvements and testing efficiency. 

Secondary Roles & Responsibilities 

1. Lab Upkeep & Compliance 

• 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. 

2. Inventory & Equipment Management 

•    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. 

3. Collaboration & Additional Responsibilities 

• 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. 

Preferred 

• Experience in a contract laboratory or regulated testing environment (dietary supplements, food and beverage, cosmetics, or pharmaceutical). 
• Familiarity with compendial microbiological methods (USP <61>, <62>, <2021>, <2022>, AOAC, BAM, ISO, or equivalent). 
• Experience with qPCR/PCR methods and plate-reader systems. 
• Experience with environmental monitoring programs. 

Experience mentoring or training junior team members