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Microbiologist

(Microbiology Research Scientist, Clinical Microbiologist, Virologist, Microbiology Analyst)

Science & Research

Salary

€32,000 - €75,000/yr

Level

Professional

Outlook

Growing

What does a Microbiologist do?

As a Microbiologist you study microscopic organisms such as bacteria, viruses, fungi and protozoa to understand how they behave and the effects they have on humans, animals, food and the environment. Your daily work involves designing and carrying out experiments, collecting and analysing biological samples, and interpreting data in a laboratory setting. You may work in a hospital diagnostic lab, a pharmaceutical manufacturing facility, a food safety testing company, or a university research department, collaborating closely with other scientists, clinicians, quality assurance teams or regulatory bodies. Writing up findings, preparing reports and keeping detailed records of experimental procedures are also central to the role.

A Day in the Life

Listen: a day as a Microbiologist

0:00 / 0:00

Your alarm goes off at 7:00 am. You work in the microbiology department of a hospital diagnostic laboratory in Cork, and you need to be gowned up and at your bench by 8:00 am. You grab a coffee from the canteen, check the overnight incubation results on the lab information management system, and print off the sample list for the morning. There are urine cultures, wound swabs and blood culture bottles to process before the clinical team does its rounds. By 8:30 am you are plating out samples onto agar — a nutrient-rich gel that allows bacteria to grow into visible colonies — using a sterile loop under a biosafety cabinet. You follow strict standard operating procedures, logging every step on paper worksheets and on the electronic system. Getting this documentation exactly right matters: results feed directly into patient treatment decisions.

Videos about Microbiologist

Career Advice on becoming a Microbiologist by Leanne P (Highlights)

Career Advice on becoming a Microbiologist by Leanne P (Highlights)

icould career stories

Filmed in the UK

Some videos were filmed in the UK. The work itself is the same, but the exams, qualifications and pay they mention are British — we include them so you get a feel for the job.

Required Education

A strong Leaving Certificate foundation in Biology, Chemistry and Maths at Higher Level is highly recommended for entry to third-level programmes in microbiology. Most microbiologists in Ireland hold an NFQ Level 8 Honours Bachelor degree, with well-regarded programmes offered at UCC, University of Galway and TU Dublin, typically entered through the CAO. Many go on to complete an NFQ Level 9 Masters or Level 10 PhD, particularly for research or specialist roles in academia and the pharmaceutical sector. Some technician-level laboratory roles can be accessed via NFQ Level 5 or 6 QQI PLC courses in Science or Laboratory Techniques at a College of Further Education, offering a pathway into support roles. Professional registration is not currently a statutory requirement for microbiologists in Ireland, but membership of bodies such as the Institute of Biomedical Science or the Society for Applied Microbiology is recognised by employers.

Required Skills

Career Perspective

Many microbiologists begin their careers as laboratory technicians or graduate scientists in food testing, hospital diagnostics or pharmaceutical quality control, building hands-on practical experience. With a few years of experience, progression into senior scientist, project lead or specialist roles such as virologist or clinical microbiologist becomes achievable, often supported by a postgraduate qualification. In the pharmaceutical and biopharma sector, which is particularly strong in Ireland, experienced microbiologists can move into quality assurance management, regulatory affairs or research and development leadership. An academic research path typically involves postdoctoral positions and eventually lectureship or professorial roles at a university or institute of technology.

AI Impact on the job

AI and machine learning tools are increasingly being used to analyse large microbiological datasets, identify patterns in genomic sequences and accelerate drug discovery, tasks that previously required extensive manual work. Automated imaging systems powered by AI can now assist with the identification of pathogens, supporting microbiologists in making faster and more accurate diagnoses. Rather than replacing microbiologists, these technologies are shifting the focus of the role towards interpreting AI-generated outputs, designing more complex experiments and applying expert judgement in ambiguous situations. Microbiologists who develop digital literacy and an understanding of bioinformatics tools will be particularly well-positioned in the evolving job market.

Career Ladder

→ Microbiologist (Current role)

Employers in Ireland

Organisations in Ireland that employ people in this occupation.

Health Service Executive (HSE)

Public sector

Nationwide

Diagnostic microbiology in hospital and public health labs

Pfizer Ireland

Multinational

Ringaskiddy, Co. Cork; Newbridge, Co. Kildare

QC microbiology and sterility testing in pharmaceutical manufacturing

Eurofins Food Testing Ireland

Multinational

Cork and Dublin

Microbiological testing of food, water and environmental samples

MSD Ireland (Merck)

Multinational

Brinny, Co. Cork; Ballydine, Co. Tipperary

Bioprocess microbiology and quality control in vaccine production

Teagasc – Food Research Centre

Semi-state

Moorepark, Co. Cork; Ashtown, Dublin

Research on food-borne pathogens, fermentation and dairy microbiology

University College Dublin (UCD School of Biomolecular and Biomedical Science)

Public sector

Belfield, Dublin 4

Academic research on microbial pathogens, immunology and infection

Abbott Ireland

Multinational

Clonmel, Co. Tipperary; Sligo

Microbiology QC and diagnostics development in medical devices

Kerry Group

Irish company

Tralee, Co. Kerry; Naas, Co. Kildare

Food safety microbiology and pathogen testing in ingredient manufacturing

National Virus Reference Laboratory (NVRL)

Public sector

UCD, Belfield, Dublin 4

Diagnostic virology and national surveillance of viral pathogens

Glanbia Ireland

Irish company

Kilkenny; Nationwide

Environmental and product microbiology in dairy and nutrition facilities

Charles River Laboratories (Anixter / Reflect Scientific)

Multinational

Ballina, Co. Mayo

Contract microbiology testing and biosafety services for pharma clients

ALS Life Sciences Ireland

Multinational

Tallaght, Dublin 24

Environmental and food microbiology testing for regulatory compliance

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