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About the Role

Long Island Labs LLC is a third-party laboratory focused on raw materials and finished products in the nutritional & dietary supplements space. We operate to USP compendial methods and maintain ISO 17025–ready systems. We’re hiring a hands-on Microbiologist to prepare media, operate autoclaves, perform daily instrument checks, execute USP microbiological testing, and keep the lab humming with strong aseptic technique, documentation, and housekeeping.

Responsibilities

• Perform microbial enumeration per USP <61> / <2021> and specified microorganisms per USP <62> / <2022> for raw materials and finished products.
• Execute appropriate sample prep, dilutions, neutralizers (as applicable), and transfers using aseptic technique in a BSC.
• Document OOS/atypical results, support root cause analysis, and assist with CAPA actions.
• Prepare and sterilize media, buffers, and reagents; label, lot, and track inventory.
• Run autoclave cycles (liquids/solids/waste), verify cycle parameters, and complete logs.
• Perform Growth Promotion Testing (GPT) / media suitability in alignment with USP and internal SOPs.
• Conduct viable air and surface monitoring, maintain EM maps/schedules, and trend results.
• Investigate excursions and support continuous improvement; align with GMP expectations and USP <1116> principles.
• Perform and document daily calibrations/verification for pH meters and balances; escalate issues as needed.
• Operate and maintain autoclaves, incubators, biosafety cabinets, and EM samplers (e.g., SAS Duo 360 or equivalent).
• Support IQ/OQ/PQ activities and routine equipment maintenance as assigned.
• Follow Good Documentation Practices (GDP); maintain accurate batch records, EM logs, autoclave logs, GPT records, and instrument check sheets.
• Draft/review SOPs, forms, and method verifications; maintain ISO 17025–ready documentation.
• Participate in internal/external audits and implement corrective actions.
• Perform daily room cleanings, wipe-downs, and routine lab maintenance; manage biohazard waste and chemical hygiene per SOPs.
• Maintain a safe work environment with proper PPE and aseptic practices.

Requirements

• BS in Microbiology, Biology, related field or 3+ years industry experience.
• 1+ year hands-on microbiology lab experience (academic, internship, or industry) with media prep, autoclaves, and aseptic technique.
• Working knowledge of USP <61>/<62>/<2021>/<2022> workflows, GPT/media suitability, and basic EM.
• Strong GDP and attention to detail.
• Experience with USP <85> Bacterial Endotoxins Test (LAL).
• Prior work in an ISO 17025 or GMP environment.
• Exposure to method validation/verification and assisting with equipment IQ/OQ/PQ.
• Experience with microbial ID tools (e.g., MicroSEQ, Vitek 2, MALDI-TOF) a plus.
• Experience with rPCR and Flow cytometer.
• Ability to stand for extended periods and lift up to ~35 lbs.
• Consistent use of PPE.

Skills

• Aseptic technique
• Documentation
• Housekeeping
• USP compendial methods
• ISO 17025
• Media preparation
• Autoclave operation
• Instrument checks
• Microbiological testing
• Good Documentation Practices (GDP)
• USP <61>
• USP <62>
• USP <2021>
• USP <2022>
• Environmental Monitoring (EM)
• GMP
• USP <1116>
• pH meters
• Balances
• Incubators
• Biosafety cabinets
• EM samplers
• IQ/OQ/PQ
• SOPs
• Method verifications
• Biohazard waste management
• Chemical hygiene
• USP <85> Bacterial Endotoxins Test (LAL)
• Method validation/verification
• Microbial ID tools
• rPCR
• Flow cytometer

Location

• On-site

Work Type

• Full-time
• On-site

Experience Level

• 1+ year hands-on microbiology lab experience
• 3+ years industry experience

Education Level

• BS in Microbiology, Biology, related field

Benefits

• 401(k)
• 401(k) matching
• Bonus based on performance
• Health insurance
• Paid time off

About the Company

• Long Island Labs LLC is a third-party laboratory focused on raw materials and finished products in the nutritional & dietary supplements space.
• We operate to USP compendial methods and maintain ISO 17025–ready systems.