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Jonah Rehak

Jonah Rehak

Microbiology Lab Technician
Stamford, Town of Stamford, Fairfield


About Jonah Rehak:

Biologist with a strong background in Cosmetic & Personal Care Microbiology, Vector-Borne Disease, and Genetics. Passionate and eager to learn through the multidisciplinary intersections of science and to apply creative solutions and offer unique insights. A thorough researcher with a meticulous and rigorous approach to experimental accuracy, verification, and protocol optimization. Thrives in both collaborative and independent working environments with a keen focus on product development related work. Strives for efficient and full delivery of regional innovation, renovation, quality improvement and cost optimization projects. 


Working as a Microbiologist Laboratory Technician at Henkel Consumer Brands (June 2021-Present) I have the following skills and experiences:

  • Executes advanced and basic microbiological techniques, such as Preservative Effectiveness, Microbial Challenge testing, and Time Kill Kinetic studies on lab, pilot, and factory scale sample submissions.
  • Completes required raw material testing and method validation for new ingredients and/or significantly changed ingredients going into products, assesses microbial risk, and troubleshoots issues that arise. 
  • Prepares and maintains the inventory of cell culture lines, laboratory reagents, and testing media. 
  • Consults and collaborates with Analytical and Clinical R&D projects.
  • Communicates issues effectively with project submissions and test results. Analyzes product performance using statistical methods  and reports out results in conformance with company policies. 
  • Follows GLP, GMP, and US Pharmacopeia guidelines, including adhering to SOPs, instrument maintenance and calibration, and document control in the internal company software system. 



B.S. in Biological Sciences from the University of Vermont 

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