Microbiologist

Diageo; Manchester; On-site; GBP 25,000 - 35,000; Full time

Job summary

A prominent beverage company is seeking a Microbiologist for their Runcorn facility. The successful candidate will play a vital role in compliance with brewing standards and food safety legislation. Responsibilities include performing microbiological analyses, preparing reagents, and contributing to quality certifications. A degree in Microbiology or a related field is essential, along with strong technical and analytical skills. Join a team that values diversity and inclusivity while producing world-class products.

Qualifications

• Degree in Microbiology, Food Science, or a related subject with relevant laboratory experience.
• Good practical knowledge of classical microbiology techniques.
• Experience in an analytical, microbiological, or manufacturing environment.

Responsibilities

• Perform microbiological techniques such as aseptic sampling and product testing.
• Prepare analytical reagents and maintain laboratory stock levels.
• Support food safety compliance and internal audits.
• Assist with trials and continuous improvement initiatives.

Skills

Technical expertise in microbiology

Analytical capability

Attention to detail

Communication skills

Education

Degree in Microbiology or related scientific subject

Job description

Job Description :

Microbiologist

Runcorn, GUINNESS Beer Packaging Site

Full-time – Permanent

Closing date 05/01/2026

Join our Beer Manufacturing Team

Our Supply Chain and Manufacturing team are problem‑solvers, sourcing, producing and delivering our much‑loved brands to delight customers around the globe. Over half of Diageo’s 27,000+ people work in Supply Chain and Manufacturing. It’s an intricate and sophisticated operation that’s the product of logistical, manufacturing, and technical collaborations.

We operate Guinness packaging facilities at Marshalls Road in Belfast, Northern Ireland, and Runcorn, in North West England, producing canned, bottled and kegged product for Ireland, UK and export markets. Significant investment is underway at both of these locations.

This role is site based at Runcorn which is an 18 Acre site running a 24/7 Operation with 4 rotational crews. It has 2 Bottling, 2 Canning lines and 1 Kegging production line. There are 90+ SKUs with 16 different Beer/Liquid types covering producing on average 23million cases of product per annum

About the role

This is an excellent opportunity to join Diageo’s team in Runcorn as a Microbiologist, playing a vital role in supporting full compliance with Diageo Way of Brewing Standards, Global Risk Management Standards, and food safety legislation. Working across all areas of the site, you’ll carry out routine and positive‑release microbiological analysis whilst providing timely, accurate data to support production and quality decisions.

Key responsibilities include:

• Performing a wide range of microbiological techniques such as aseptic sampling, plating, staining, microscopy, and product testing.
• Preparing analytical reagents, maintaining laboratory consumable stock levels, participating in microbiological ring schemes, supporting internal and external audits, and engaging with central experts, including weekly micro calls.
• Supporting the delivery of Quality Sample Plans, contributing to food safety and compliance certifications (FSSC 22000, ISO 9000).
• Assisting with commercialisation trials and continuous improvement initiatives, while providing cross‑skilled support across the wider Quality function where required.

About you

To besuccessful for this role, you'll have a degree in Microbiology, Food Science, orarelated scientific subject supported by relevant laboratory experience. You’ll be able to demonstrate good practical knowledge of classical microbiology techniques while ensuring GMP standards are consistently met.

In addition, you’ll have:

• Strong technical expertise in microbiology, with experience in an analytical, microbiological, or manufacturing environment.
• Demonstrated analytical capability, accuracy, and attention to detail.

• Excellent communication and relationship‑building skills, with the ability to influence across multiple levels.
• A background in beverage manufacturing or analysis would be an advantage.

Working with us

Our purpose is to celebrate life, every day, everywhere. And creating an inclusive culture, where everyone feels valued and that they can belong, is a crucial part of this.

We embrace diversity in the broadest possible sense. This means that you’ll be welcomed and celebrated for who you are just by being you. You’ll be part of and help build and champion an inclusive culture that celebrates people of different gender, ethnicity, ability, age, sexual orientation, social class, educational backgrounds, experiences, mindsets, and more.

Ourambitionistocreatethebestperforming,mosttrustedandrespectedconsumer products companies in the world. Join us and help transform our business as we take our brands to the next level and build new ones as part of shaping the next generation of celebrations for consumers around the world.

Feel inspired? Then this may be the opportunity for you!

If you require a reasonable adjustment, please ensure that you capture this information when you submit your application.

Worker Type :

Regular

Primary Location:

Runcorn

Job Posting Start Date :

2025-12-23