Part-Time Microbiologist - American Analytical (AATLS)

Job Description

Job Description

Part-Time Microbiologist - American Analytical (AATLS)

Location: On-site · 9030 S Rita Road, Suite 320, Tucson, AZ 85747

Status / hours: Part-time, ~16-24 hrs/week (set to your need)

Compensation: $28-$34/hr 

About us

American Analytical (American Analytical Testing Laboratory Services / Black Labs, LLC) is a Tucson-based, ISO/IEC

17025:2017-accredited (ANAB AT-3321) and CDC ELITE environmental testing laboratory, and a Service-Disabled

Veteran-Owned Small Business (SDVOSB). We serve healthcare facilities, government and tribal health systems, and

manufacturers - with deep focus on Legionella and water-compliance microbiology, AAMI ST108 critical water for sterile

processing and dialysis, and a growing cosmetics microbiology program. 

The role

We're hiring a part-time Microbiologist to support our growing microbiology bench - performing accredited

environmental and cosmetic microbiology testing, upholding ISO/IEC 17025 quality standards, and providing capacity for

peak workloads and scheduled bench coverage. This is a hands-on, on-site role, ideal for a detail-oriented microbiologist

who wants flexible part-time hours in a small, mission-driven accredited lab.

What you'll do

• Perform Legionella culture testing per ISO 11731:2017 / CDC ELITE procedures - sample processing, plating, serial incubation reads through day 10, confirmation, and reporting.

• Run heterotrophic plate count (SM 9215), total coliform & E. coli (SM 9223B), and related potable / non-potable water microbiology.

• Support AAMI ST108 critical water and endotoxin (LAL) testing for sterile processing and dialysis water.

• Contribute to the cosmetics microbiology program - microbial limits / USP <61>/<62>/<51> and Aerobic Plate Count (AOAC OMA 2015.13) on personal-care products - and environmental swab / clean-room     monitoring.

• Prepare and QC culture media, reagents, and controls; maintain rigorous aseptic technique.

• Keep strict chain-of-custody and complete ISO/IEC 17025 documentation - bench sheets, QC records, traceability, and result entry in the LIMS.

• Operate, calibrate, and maintain microbiology equipment (incubators, biosafety cabinet, autoclave, microscope); log maintenance.

• Follow lab safety, biohazard, and waste-handling protocols.

• Support method verification and proficiency testing (e.g., CDC ELITE panels) as needed.

• Promptly flag nonconformances or out-of-specification results to the Laboratory Director.

ISO/IEC 17025:2017 (ANAB AT-3321) · CDC ELITE · SDVOSB

Analytical Testing Laboratory · Tucson, Arizona

What you bring 

• Bachelor's degree in Microbiology, Biology, Medical Laboratory Science, or a closely related field (or equivalent hands-on experience).

• 2+ year of laboratory microbiology experience (academic, clinical, environmental, food, pharma, or cosmetics).

• Strong aseptic technique; proficiency in plating, culturing, and microbial enumeration/identification.

• Meticulous documentation habits and comfort with detailed recordkeeping.

• Reliable and able to commit to a consistent part-time schedule, including fixed culture-read days.

• Able to work on-site in Tucson; authorized to work in the U.S. Nice to have (not required)

• Experience in an ISO/IEC 17025-accredited laboratory.

• Legionella / CDC ELITE experience (ISO 11731 or CDC procedure).

• Water-compliance, AAMI ST108, or USP cosmetic microbial-limits experience.

• QMS, LIMS experience; ASCP / NRCM or similar certification.

Physical requirements

• Stand for extended periods and perform fine-motor bench work; lift up to ~25 lbs.

• Comfortable handling environmental and biological samples under biosafety protocols.

Why join

• Flexible part-time hours in a small, collaborative, veteran-owned accredited lab.

• Hands-on work across a rare credential stack (ISO 17025 + CDC ELITE) and multiple disciplines - water, healthcare, and cosmetics.

• Direct mentorship from the Laboratory Director and real ownership of your bench.