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Senior Microbiologist

Req ID:  41714

Ballina, MO, IE, F26 D786

For 70 years, Charles River employees have worked together to assist in the discovery, development and safe manufacture of new drug therapies. When you join our family, you will have a significant impact on the health and well-being of people across the globe. Whether your background is in life sciences, finance, IT, sales or another area, your skills will play an important role in the work we perform. In return, we’ll help you build a career that you can feel passionate about.

Job Summary



We are seeking an experienced Senior Microbiologist for our Biologics Division located in Ballina, Co. Mayo, Ireland. You shall be reporting to the Microbiology Department Manager.


The following are essential requirements:


  • Minimum of BSc. Microbiology
  • Minimum of 5 years relevant industry experience
  • GMP regulatory experience
  • IT Skills – MS Word, Excel, Powerpoint
  • Ability to interact with peers effectively
  • Be able to deal with people at all levels including internal and external clients
  • Strong administration, documentation and analytical skills
  • Ability to work within a team.
  • Organisational skills
  • Time Management skills
  • Strong Customer focus
  • Meticulous attention to detail.
  • Ability to work to tight timescales
  • Adopt a can-do attitude
  • Ability to work occasional overtime




  • Proven track record of working within a busy Microbiology Department in the Pharmaceutical or Medical Device Industry.
  • Supervisory skills
  • Experience of training within a GMP environment.
  • Experience in the validation/qualification of Microbiology equipment and systems.
  • Familiar with requirements of the various Pharmacopoeias in relation to all aspects of Sterility Testing.
  • Knowledge of clean room and isolator in relation to sterility testing would be an advantage.


The main duties & responsibilities shall be:


  • Carry out Microbiological testing as assigned
  • Compile reports for the tests and review test results.
  • Schedule testing on a day to day basis as required.
  • Address all deviations raised.
  • Carry out Laboratory Investigations as required.
  • Conduct validation projects i.e. writing, reviewing and executing validation documents.
  • Implement, review and update SOP’s as required.
  • Act as mentor for junior staff
  • Participate in audits


About Biologics Testing Solutions
With more than 50 years of experience and proven regulatory expertise, the Charles River Biologics group can address challenging projects for biotechnology and pharmaceutical companies worldwide. Offering a variety of services such as contamination and impurity testing, protein characterzation, bioassays, viral clearance studies and stability and lot release programs, we support clients throughout the biologic development cycle, from the establishment and characterization of cell banks through preclinical and clinical studies to marketed products. Whether clients need stand-alone services, a unique package of testing, or insourced support, our Biologics group can create a custom solution to suit their needs.  Each year more than 20,000 biologic testing reports are sent each and over 200 licenses products are supported by our biologics testing solutions team.


About Charles River
Charles River is an early-stage contract research organization (CRO). We have built upon our foundation of laboratory animal medicine and science to develop a diverse portfolio of discovery and safety assessment services, both Good Laboratory Practice (GLP) and non-GLP, to support clients from target identification through preclinical development. Charles River also provides a suite of products and services to support our clients’ clinical laboratory testing needs and manufacturing activities. Utilizing this broad portfolio of products and services enables our clients to create a more flexible drug development model, which reduces their costs, enhances their productivity and effectiveness to increase speed to market.


With over 13,000 employees within 80 facilities in 23 countries around the globe, we are strategically positioned to coordinate worldwide resources and apply multidisciplinary perspectives in resolving our client’s unique challenges.  Our client base includes global pharmaceutical companies, biotechnology companies, government agencies and hospitals and academic institutions around the world.


At Charles River, we are passionate about our role in improving the quality of people’s lives. Our mission, our excellent science and our strong sense of purpose guide us in all that we do, and we approach each day with the knowledge that our work helps to improve the health and well-being of many across the globe. We have proudly supported the development of 80% of the drugs approved by the FDA in 2017.


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